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Discover an extensive array of application notes and white papers authored by the talented minds at Linear Systems, as well as contributions from our esteemed colleagues and friends. Immerse yourself in our carefully curated selection to stay informed and inspired. Articles & Books This is a space to tell users about yourself and your business. Let them know who you are, what you do, and what this website is all about. Double click to start editing. Articles FET Principles and Circuits, Part 1 to 4, by Ray Martson, Nuts and Volt 5/2000 Ray Marston Read More JFETs The New Frontier Part 1 Erno Borbely Read More Books Designing with Field Effect Transistors (Second Edition) 1990 ISBN 007057537-1 FET Technology and Applications 1989 ISBN 0824780507 View Read More Analog Circuit Design - A Tutorial Guide to Applications and Solution Analog Circuit Design, Volume 2 – Immersion in the Black Art of Analog Design Analog Circuit Design, Volume 3 – Design Note Collection View Read More An Introduction to Field Effect Transistors-by J. Watson PHD, University of Wales, Swansea-1970 Designing with Field Effect Transistors (First Edition) 1981 ISBN 9780070574496 View Read More Some Tips on Making a FETching Discrete Amplifier View Read More Designing Audio Power Amps, 2010, ISBN 007164024X The Audio Power Amplifier Design Handbook (Fifth Edition) View Read More Designing Audio Power Amps, 2010, ISBN 007164024X View Read More Piezoelectric Accelerometers with Integral Electronics includes noise analysis of JFET and MOSFET amplifier circuits ISBN 978-331908-0772 View Read More

Linear Systems has been designing, manufacturing, and distributing high-performance JFET Amplifiers, DMOS Switches, Current Regulating Diodes, Bipolar Transistors, and JFET Switches since 1987. Our specialty semiconductors are recognized as the best in their class for precision, reliability, and performance. Building Excellence, One Part at a Time Since 1987, Linear Systems has been a leader in designing and manufacturing specialty semiconductors. Operating from three Silicon Valley fabrication facilities, we serve a wide range of industries, including defense, aerospace, professional audio, and more. Our components are integral to applications such as military underwater surveillance, space telescope cameras, high-fidelity audio equipment, and advanced aerospace sensors. Our dedicated team is committed to delivering high-quality, reliable components, ensuring timely delivery to meet our customers' needs. View Products Tailored Solutions to Meet Your Exact Specifications Get Started Connect with our expert technical team to discuss your project today: Call (510) 490-9160 or Email support@linearsystems.com How We Help You At Linear Systems, we understand that every application has unique demands. That’s why we offer advanced screening and customization options across our full product range, including N-Channel and P-Channel JFETs, High-Speed N-Channel Lateral DMOS Switches, Single and Quad Current-Regulating Diodes, Ultra Low-Leakage Diodes, NPN and PNP Bipolar Transistors, N-Channel and P-Channel Small Signal MOSFETs, and BIFET devices. Our advanced screening process allows for precise parameter selection, covering all specifications listed in our standard data sheets, including detailed package pin-outs. Whether you need tighter tolerances, specific performance metrics, or custom sorting, we can tailor our parts to meet your exact requirements. Let’s build exactly what you need. High-Performance Components for Demanding Applications We specialize in precision analog components engineered for exceptional performance across the most demanding industries. Ultra-Low-Noise JFETs: Our flagship LSK series—including the LSK389 and LSK170—offers industry-leading ultra-low-noise N-Channel monolithic dual and single JFETs, trusted in the world’s most critical applications. The LSK series delivers outstanding low-noise performance at consumer-friendly prices. We also offer an extensive range of high-performance Improved Standard JFETs. High-Speed DMOS Switches: Our lateral DMOS switches set the standard for speed and reliability, featuring single and quad nanosecond switches—with or without protection diodes—for fast, precise switching applications. Ultra-Low-Leakage Diodes: The PAD/JPAD/SSTPAD series provides ultra-low-leakage diodes for designs requiring minimal reverse current. With leakage currents as low as -1 pA (PAD1), these diodes protect sensitive circuit inputs like op-amps, ADC analog inputs, analog multiplexers, and RS485 line receivers from over-current and over-voltage. Current-Regulating Diodes: Our SST500 series of current-regulating diodes ensures consistent performance in high-reliability environments such as test equipment, medical devices, and instrumentation. Utilizing JFET technology, these diodes simplify circuit integration while maintaining precision. From precision JFETs to specialized diodes and switches, Linear Systems delivers components that meet the highest standards of performance and reliability. Explore our: Low-Noise JFETS Explore our: Low Leakage Diodes & Current Regulating Diodes Explore our: High-Speed DMOS Switches

Linear Systems typically doesn't require visitors to provide personal information for website use. However, in certain cases, we may ask for it to facilitate future communications, purchases, or material requests. We reserve the right to collect and share personal information in response to violations, fraud, or actions that may harm our company, but otherwise, we do not share your information with third parties. Privacy Policy A privacy policy is a statement that discloses some or all of the ways a website collects, uses, discloses, and manages the data of its visitors and customers. It fulfills a legal requirement to protect a visitor or client's privacy. Countries have their own laws with different requirements per jurisdiction regarding the use of privacy policies. Make sure you are following the legislation relevant to your activities and location. In general, what should you cover in your Privacy Policy? What type of information do you collect? How do you collect information? Why do you collect such personal information? How do you store, use, share and disclose your site visitors' personal information? How (and if) do you communicate with your site visitors? Is your service targeting and collecting information from Minors? Privacy policy updates Contact Information You can check out this support article to receive more information about how to create a privacy policy. The explanations and information provided herein are only general explanations, information and samples. You should not rely on this article as legal advice or as recommendations regarding what you should actually do. We recommend that you seek legal advice to help you understand and to assist you in the creation of your privacy policy.

Discover our diverse product line of innovative solutions at 4042 Clipper Court, Fremont, CA, USA. From Ultra-Low-Noise JFETs to Current Regulating Diodes, DMOS High-Speed Switches, MOSFETs, Bipolar Transistors, Low Leakage Diodes, and Voltage Controlled Resistors, we offer cutting-edge technology to meet your needs. Find the perfect solution for your requirements today! Our Products Linear Systems specializes in designing and manufacturing high-performance small-signal discrete semiconductors, including ultra-low-noise monolithic dual and single JFETs, high-speed lateral DMOS switches, low-leakage diodes, current-regulating diodes, monolithic dual transistors, MOSFETs, BiFET amplifiers, and voltage-controlled resistors. Our products are recognized for their precision, reliability, and performance, serving applications in military sensors, industrial controls, high-end audio equipment, medical electronics, and test and measurement instruments. Notably, our LSK series, featuring the LSK389 and LSK170 ultra-low-noise N-channel JFETs, is designed for the most demanding applications. Our high-speed lateral DMOS switches, including single and quad nanosecond switches, offer exceptional performance with minimal crosstalk. Additionally, our PAD series of low-leakage diodes provides superior alternatives when reverse current must be minimized, with leakage currents ranging from -1 pA to -100 pA. Since 1987, we have been committed to delivering cutting-edge semiconductor solutions that meet the evolving needs of our customers. JFET Amplifiers Duals JFET Amplifiers Singles JFET Switches DMOS High Speed Switches Low Leakage Diodes Current Regulating Diodes Bipolar Transistors MOSFETs Voltage Controlled Resistors BIFET Amplifier Sample Boxes

Welcome to our Literature page, where you can delve into a treasure trove of white papers and application notes covering our range of parts. Explore insights on ultra-low noise JFETs, DMOS, Current Regulating Diodes, JFET Switches, and low-leakage diodes, all designed to empower your understanding of our products. Literature Linear Systems offers an extensive library of technical resources tailored for analog circuit designers. Our collection includes detailed data books, product selection guides, cross-references, datasheets, original application notes, and white papers. This comprehensive literature serves as an invaluable reference for engineers, students, and hobbyists seeking to optimize their signal chain designs. By providing in-depth insights into small-signal discrete semiconductors and JFET applications, our materials empower you to create efficient and innovative analog circuits. Explore our resources to enhance your design process and stay at the forefront of analog technology. Datasheets Linear Systems provides detailed datasheets summarizing our components’ performance in ways to assist designers seeking to find the right part quickly. Our data sheets include typical/minimum/maximum performance data, along with an array of curves illustrating part performance so designers understand how these devices will contribute to overall system performance. Cross Reference Linear Systems continues to produce a wide range of JFET, DMOS and other standard products also previously manufactured by Siliconix, Fairchild and other companies. This cross reference provides buyers with a tool to quickly find replacements for discontinued standard products. Application Notes Linear Systems has a wide range of application notes written by top industry professionals to assist designers in making optimal use of our components in their products.

Quality At Linear Systems, quality is not just a standard; it's a commitment we uphold at every step of our operations. We are proud to be ISO 9001:2015 certified, a testament to our unwavering dedication to excellence. Our commitment to quality is reflected in our rigorous internal audit processes, ensuring that every aspect of our operations meets the highest standards. Through our Continuous Improvement Program (CIP), we continuously review and refine our processes, building on past successes to implement best practices across the board. Our ultimate goal is zero defects, and we achieve this by conducting thorough failure analysis and root cause determination at every stage of development and production. By leveraging cutting-edge quality-analysis tools and methods, we ensure that our products consistently meet and exceed expectations. ISO Certificate

HIGH INPUT IMPEDANCE, N-CHANNEL JFET AMPLIFIER < Back LS5301 HIGH INPUT IMPEDANCE, N-CHANNEL JFET AMPLIFIER The LS/PF/SST5301 Series Single, High Input Impedance, N-Channel JFET Amplifier is a direct replacement for the Fairchild equivalent part. It is ideal for Very High Input Impedance Applications. Available in TO-72 4L RoHS, TO-92 3L RoHS and SOT-23 3L RoHS package, as well as in die form. Advanced screening options are available for our diverse product lineup, featuring JFETS, Bipolar transistors, MOSFETs, current regulators, and Diodes. Our special screening covers all the parameters listed in the standard datasheet, including comprehensive package pin-out. Connect with our experienced technical team to discuss your specific needs and tailor your requirements—email us at support@linearsystems.com or call (510) 490-9160. MOQ applies to these specialized services. Ordering Information Below are the options you have when ordering this part: PF5301 TO-92 3L RoHS LS5301 TO-72 4L RoHS SST5301 SOT-23 3L RoHS LS5301 Die Datasheet Spice Model Application Notes

Navigate the Purchase Order Terms and Conditions page for our Fremont-based semiconductor manufacturer and gain insights into our business practices. CUSTOMER TERMS AND CONDITIONS A. The term "Company" as used herein shall mean Linear Integrated Systems, Inc. B. The term "Buyer" as used herein shall mean a party placing a purchase order for the Company products (the "Products"). C. THESE TERMS AND CONDITIONS OF SALE (THE "TERMS") ARE THE ONLY TERMS AND CONDITIONS OF THE AGREEMENT BETWEEN THE PARTIES. ANY AND ALL ADDITIONAL OR DIFFERENT TERMS, WHETHER IN A PURCHASE ORDER OR OTHER DOCUMENT GIVEN BEFORE OR AFTER THESE TERMS, ARE SPECIFICALLY REJECTED AND SHALL NOT BECOME PART OF THESE TERMS UNLESS AGREED TO IN WRITING BY THE COMPANY. 1. SCOPE These Terms apply to all quotations and offers made by and purchase orders accepted by the Company. Acceptance of Buyer's order is conditioned upon Buyer's acceptance of these Terms, whether by written acknowledgment, implication, or acceptance and payment of goods ordered. Any conflicting or additional terms provided by the Buyer are specifically rejected. Any changes in these Terms must be agreed upon in writing by a corporate officer of the Company. 2. PRICES, TAXES, AND DUTIES Prices are quoted in U.S. Dollars and may change without notice. Prices are firm and not subject to renegotiation, except at the Company's discretion. All prices exclude international duties, foreign taxes, and US federal, state, and local taxes. Buyer shall pay all applicable taxes and duties and indemnify the Company against any related expenses. Any price reductions based on volume discounts will be revoked if the Buyer reduces the number of parts purchased below discount levels. All price quotations are valid for 30 days, and parts must be delivered within 180 days from the quotation date. The Company may extend the validity of quotations at its discretion. 3. PAYMENT TERMS Payments shall be in U.S. Dollars. Net terms may be granted upon approval. Customer agrees to remit payment for the invoice in full by the agreed-upon due date. Should payment extend beyond the specified Net Terms, Customer acknowledges and accepts that any outstanding fee not settled within five (5) days from its due date shall accrue interest at a rate of 2.5% per month, commencing from the fifth (5th) day after the due date until payment is made. Upon payment, all fees become nonrefundable. Linear Systems retains the right, at its discretion and at any point, to adjust the monthly interest rate for overdue invoices. The Company may require payment in advance or C.O.D. The Company may suspend performance or require cash payment or other assurances if Buyer’s financial condition warrants it. Payment must be made in Alameda County, California, where any collection action may be brought. Cancellations or reschedules must be requested in writing within seven (7) days of order submission. Otherwise, the Buyer must pay liquidated damages equivalent to the full purchase price. 4. TITLE AND DELIVERY All sales are EXW (Incoterms 2000) point of shipment in the U.S. Title passes to the Buyer upon receipt of payment in full. The Company is not responsible for damage or delays after delivery to the carrier. Any claims for damages must be filed with the carrier. Shortage claims must be made within ten (10) days of shipment arrival. The Company may deliver in installments and is not liable for failure to meet delivery schedules or costs of procuring substitute goods. 5. ACCEPTANCE Buyer must inspect products upon receipt and file any claims for damage, shortages, or nonconformity immediately. Claims must be made within 30 days of receipt. No returns are accepted without a Return Material Authorization ("RMA"). 6. LIMITED WARRANTY The Company warrants products against defects in workmanship and materials for 90 days, subject to terms and conditions. The warranty does not apply to products subject to misuse, neglect, or unauthorized modifications. The Company's liability is limited to rescreening, reprocessing, replacing nonconforming products, or issuing credit for the purchase price. Warranty is contingent upon full payment. All other warranties are disclaimed. 7. INFRINGEMENT Buyer indemnifies the Company against any claims of intellectual property infringement resulting from compliance with Buyer’s designs or specifications. The Company is not liable for any infringement claims arising from the use of products in combination with non-Company products. 8. FORCE MAJEURE The Company is not liable for failure to perform due to unforeseen circumstances or causes beyond its control, such as natural disasters, war, or labor shortages. Delivery dates may be deferred during such delays. 9. CANCELLATIONS AND RESCHEDULES No cancellations or reschedules will be accepted within thirty (30) days of the earliest requested ship date. 10. LIMITATION OF LIABILITY The Company, its employees, officers, and directors are not liable for any breach of this Agreement, product order, or terms and conditions for business interruption costs, special, incidental, or consequential damages. Liability is limited to the amount paid by the Buyer for the products giving rise to the claim. 11. LIFE SUPPORT AND OTHER APPLICATIONS The Company's products are not authorized for use in life support devices or other critical applications without express written approval. Buyer assumes full risk and liability for such use and indemnifies the Company against related claims. 12. MIL-STD CLASS H AND CLASS K APPLICATIONS The Company's products are not authorized for use in MIL-STD Class H and Class K applications without express written approval. Buyer assumes full risk and liability for such use and indemnifies the Company against related claims. 13. EXPORT CONTROL Buyer agrees to comply with all applicable U.S. and destination country laws and regulations, including export controls. Buyer indemnifies the Company against damages from breaches of these laws. 14. RELATIONSHIP OF PARTIES Buyer is an independent contractor and responsible for its employees and agents. Buyer indemnifies the Company against any claims arising from Buyer’s activities. 15. LEAD-FREE, ROHS COMPLIANT PARTS The Company warrants products to be lead-free and RoHS compliant when ordered correctly. Electrical performance is guaranteed, but packaging reliability is not. Buyer indemnifies the Company against claims related to the use of non-compliant parts. 16. PRODUCT DISCONTINUANCE The Company reserves the right to discontinue any product at any time, with an attempt to provide twelve (12) months' notice. The Company is not liable for costs or damages due to product discontinuance. 17. ORDER ACCEPTANCE The Company reserves the right to reject any purchase order and is not liable for costs or damages resulting from non-acceptance. Selected parts are sold on a Non-Cancellable, Non-Returnable basis. Buyer’s purchases are final and subject to terms and conditions for NCNR parts. 18. DATECODE POLICY Linear Systems does not accept any restrictions on the sale or shipment of parts based on the device date code unless there are design-specific technical requirements agreed upon by both Linear Systems and the buyer. Linear Systems reserves the right to ship any date code for customer orders and samples. Linear Systems does not acknowledge a correlation between field failures and date codes exceeding 36 months. The Linear Systems Warranty applies to all products regardless of device date codes. 19. CONTROLLING LAW These terms and conditions are governed by the laws of the State of California, with sole jurisdiction and venue in Alameda County, California. 20. GENERAL LEGAL These terms constitute the entire contract and supersede all previous communications. Any changes must be agreed upon in writing. Unenforceable sections do not affect the remaining terms. Failure to enforce any provision does not waive it. Notices must be in writing and sent to the specified Company address. The prevailing party in any legal action is entitled to recover attorney's fees and costs. Rev. J 07082024

TIGHTLY MATCHED, MONOLITHIC DUAL, NPN TRANSISTOR < Back LS3250 Series - Dual TIGHTLY MATCHED, MONOLITHIC DUAL, NPN TRANSISTOR The LS3250 Tightly Matched, Monolithic Dual, NPN Transistor is a Higher Current Version of the MP310, MP311, MP312, and MP313 Series. It is ideal for Higher Current, Small Signal Transistor, Super Beta, Amplifier & Switching Applications. It is available the in TO-71 6L RoHS, TO-78 6L RoHS, PDIP 8L ROHS and SOIC 8L RoHS package, as well as bare die. Advanced screening options are available for our diverse product lineup, featuring JFETS, Bipolar transistors, MOSFETs, current regulators, and Diodes. Our special screening covers all the parameters listed in the standard datasheet, including comprehensive package pin-out. Connect with our experienced technical team to discuss your specific needs and tailor your requirements—email us at support@linearsystems.com or call (510) 490-9160. MOQ applies to these specialized services. Ordering Information Below are the options you have when ordering this part series: LS3250A TO-71 6L RoHS LS3250B TO-71 6L RoHS LS3250C TO-71 6L RoHS LS3250A TO-78 6L RoHS LS3250B TO-78 6L RoHS LS3250C TO-78 6L RoHS LS3250A PDIP 8L RoHS LS3250B PDIP 8L RoHS LS3250C PDIP 8L RoHS LS3250A SOIC 8L RoHS LS3250B SOIC 8L RoHS LS3250C SOIC 8L RoHS LS3250A Die LS3250B Die LS3250C Die Datasheet Spice Model Application Notes

Insights and Updates March 31, 2025 at 6:45:00 PM Jagdev Bariana: Chief Product Officer Linear Systems Promotes Jagdev Bariana to Chief Product Officer Read More January 13, 2025 at 8:00:00 PM Mike Ansberry: VP of Manufacturing and General Manager Mike Ansberry Named VP of Manufacturing and General Manager at Linear Systems Read More December 25, 2024 at 8:00:00 PM Linear Integrated Systems Expands Custom Testing Services to Provide Designers Greater Optimization and Flexibility Linear Integrated Systems (Linear Systems) is pleased to announce the immediate availability of Expanded Custom Testing Services for all its Small Signal Discrete Products. These services allow designers to tailor product specifications to meet specific design requirements, empowering them to optimize performance and enhance flexibility. Read More November 21, 2024 at 8:00:00 PM Jaime Cook: VP of Operations & Market Development Jaime Cook Appointed VP of Operations & Market Development at Linear Systems, Inc. Read More October 7, 2024 at 7:00:00 PM What are Current Regulating Diodes Current regulating diodes, also known as constant current diodes or current limiting diodes, are electronic components that control the amount of electrical current flowing through a circuit. They work by maintaining a constant voltage across themselves despite changes in the load resistance. Read More October 7, 2024 at 7:00:00 PM Specialty Semiconductor - Linear Systems Linear Systems has designed, manufactured and distributed the best specialty semiconductors in their respective classes since 1987. Working in three Silicon Valley fabrication facilities, our components are world leaders in applications ranging from military underwater listening to the largest space telescope camera in existence. Read More September 26, 2024 at 7:00:00 PM BIFET Amplifiers BIFET amplifiers are a type of operational amplifier (op-amp) that use bipolar junction field-effect transistors (BJFETs) as their input stage. Read More July 25, 2024 at 2:45:00 PM Designing Audio Circuits and Systems Exploring Phono Preamp Circuits with Bob Cordell’s New Book Read More July 16, 2024 at 6:45:00 PM Bipolar Transistors Linear Systems’ Monolithic Dual NPN and PNP transistors consist of two transistors on the same piece of silicon resulting in better matching and better performance over temperature. These parts are designed for general purpose amplifier and switching applications. Read More July 9, 2024 at 7:45:00 PM MOSFETs Linear Systems’ small signal MOSFETs consist of two MOSFETs on the same piece of silicon resulting in better matching and better performance over temperature. Read More July 1, 2024 at 3:00:00 PM JFET Circuit Design Book Introduction, Audience, Preface, Why JFETs & Applications Structure Read More June 17, 2024 at 7:20:00 PM DMOS High Speed Switches by Linear Systems The Linear Systems family of DMOS devices is designed to handle a wide range of video, fast ATE, telecom and other analog switching applications. These components are capable of ultrafast switching speeds (tr = 1 ns, tOFF = 3 ns) and excellent transient response. Thanks to reduced parasitic capacitances, our DMOS can handle wideband signals with high off-isolation and minimum crosstalk. Read More June 10, 2024 at 7:15:00 PM FAST SAMPLE AND HOLD In this interesting design, a strobe pulse sets the sample mode. Here's how it works: Read More June 3, 2024 at 6:45:00 PM Linear Systems Capabilities Statement Who we are and what we do Read More May 30, 2024 at 7:00:00 PM What is a JFET? JFETs are three-terminal semiconductor devices that can be used as electronically controlled switches or resistors, or to build amplifiers. Read More March 17, 2023 at 3:00:00 PM Military Sensors White Paper Linear Systems' White Paper Describes Lowest Noise Amplification for Sensor Signal Chains Read More March 17, 2023 at 3:00:00 PM LSK170 Press Release Direct Replacement for Toshiba 2SK170 Read More March 17, 2023 at 3:00:00 PM John H. Hall In Remembrance of Linear Systems' Founder Read More March 17, 2023 at 3:00:00 PM Cloud Microphones Keeping the Family Business Going Read More March 17, 2023 at 3:00:00 PM LTspice Press Release Linear Systems' JFETs in LTspice Read More March 17, 2023 at 3:00:00 PM SD5400/SD5000 Introducing Family of Quad N-channels Read More March 17, 2023 at 3:00:00 PM Testing Capability New Low-Noise Semiconductor Testing Capability Read More March 17, 2023 at 3:00:00 PM LSK389 Press Release Ultra-Low Noise, Monolithic Dual, N-Channel JFET Read More March 17, 2023 at 3:00:00 PM Largest Digital Camera Engineering the World’s Largest Digital Camera Read More March 17, 2023 at 3:00:00 PM LSJ689 Press Release Ultra Low Noise P-Channel Dual JFET Read More March 17, 2023 at 3:00:00 PM LS26VPS/VNS Press Release New JFET Voltage-Controlled Resistors Read More March 17, 2023 at 3:00:00 PM High Temp Products High Temp Discrete Products Read More March 17, 2023 at 3:00:00 PM DMOS Product Line DMOS Product Line Acquired from Vishay/Siliconix Read More March 17, 2023 at 3:00:00 PM App Note by Dimitri Danyuk Headphone Amplifier Evaluation Board Read More March 17, 2023 at 3:00:00 PM Ansberry Named VP Michael Ansberry - VP for Process Engineering. Read More March 17, 2023 at 3:00:00 PM LSK489 Press Release Low-Capacitance Dual N-Channel JFET Read More March 17, 2023 at 3:00:00 PM Burning Amp Festival Burning Amp Festival - A DIY Audio Gathering Read More March 17, 2023 at 3:00:00 PM AEA AEA’s Ribbon Microphones & Linears’ JFETs Read More March 17, 2023 at 3:00:00 PM Millions of Devices in Stock! LS844 Monolithic Dual Small-Signal JFET, 3N163 Small-Signal MOSFET, LS320 BiFET and Many More! Read More

Bipolar Transistors - Linear Systems’ Monolithic Dual NPN and PNP transistors consist of two transistors on the same piece of silicon resulting in better matching and better performance over temperature. Bipolar Transistors Linear Systems’ Monolithic Dual NPN and PNP transistors consist of two transistors on the same piece of silicon resulting in better matching and better performance over temperature. These parts are designed for general purpose amplifier and switching applications. IT120 Series MONOLITHIC DUAL, NPN TRANSISTOR Read More LS318 LOG CONFORMANCE, MONOLITHIC DUAL, NPN TRANSISTOR Read More LS3550 Series MONOLITHIC DUAL AND SINGLE, PNP TRANSISTOR Read More LS310 Series TIGHTLY MATCHED, MONOLITHIC DUAL, NPN TRANSISTOR Read More IT124 MONOLITHIC DUAL, NPN TRANSISTOR Read More LS3250S - Single LS3250 Single NPN High-Speed Switching Transistor Read More LS358 LOG CONFORMANCE, MONOLITHIC DUAL, PNP TRANSISTOR Read More LS350 Series TIGHT MATCHING, MONOLITHIC DUAL, PNP TRANSISTOR Read More IT130 Series MONOLITHIC DUAL, PNP TRANSISTOR Read More LS3250 Series - Dual TIGHTLY MATCHED, MONOLITHIC DUAL, NPN TRANSISTOR Read More LS301 Series HIGH VOLTAGE, SUPER BETA, MONOLITHIC DUAL, NPN TRANSISTOR Read More

Buy Direct From Linear Systems Linear Systems offers direct sales to customers as well as through our network of authorized distributors, each with its own unique benefits. Contact us at (510) 490-9160 or sales@linearsystems.com for assistance with price quotes, samples, custom part discussions, drawing evaluations, and valuable insights. Contact Us! Buy from Authorized Distributors Customers have the option to order through Linear Systems' authorized distributors, ensuring access to our high-quality parts worldwide. Some distributors provide additional services such as design support, product screening, and testing. Purchasing directly from Linear Systems, or through our authorized distributors guarantees you receive genuine components and exceptional support tailored to your needs. Global Distributors Below are our International Distributors, shipping to locations worldwide. Linear Systems' Authorized Distributor, Micross Linear Systems' Authorized Distributor, NAC Semi Linear Systems' Authorized Distributor, Trendsetter Electronics Linear Systems' Authorized Distributor, Mouser Electronics Linear Systems Authorized Distributor, DigiKey Electronics Regional Distributors Should you wish to order from a distributor nearer to your location, kindly consult the following list, as we have distributors located around the world. Italy Schurter Electronics S.p.A. Email info.it@schurter.com Phone # +39 02 3046 5311 Website South Korea Unotel Co., Ltd. Email michael.lim@unotel.co.kr Phone # +82-31-703-5191 Website United States Trendsetter Electronics Email sales@trendsetter.com Phone # (512) 310-8858 Website United States NAC Semi Email sales@nacsemi.com Phone # (727) 828-0187 Website France CATS (Solutec & Microel) Email contact@cats-france.fr Phone # +33-1-69070824 or +33-1-69592150 Website India Electronic Enterprises (India) Private Limited Email eehyd@eeipl.in Phone # 040-23243352, 23240817 Website Germany Ingenieur-Buero-Fluck Email ews-d@t-online.de Phone # +49-7533-949-8760 Website United Kingdom Astute Email sales@astutegroup.com Phone # +44 (0)1438 909 909 Website Japan Kyokuto Boeki Kaisha Ltd. (KBK) Email eldv@kbk.co.jp Phone # +81-03-3244-3783 Website United Kingdom Micross Components - United Kingdom Email Eddie.Petch@micross.com Phone # +44 (0) 1603 788 967 ext250 Website Finland Elgood Oy Email info@elgood.fi Phone # +358 207 981 140 Website Israel Gitronics/Boran Email support@boran.co.il Phone # +972-3-9274738 Website Customer Terms and Conditions A. The term "Company" as used herein shall mean Linear Integrated Systems, Inc.​ B. The term "Buyer" as used herein shall mean a party placing a purchase order for the Company products (the "Products"). C. THESE TERMS AND CONDITIONS OF SALE (THE "TERMS") ARE THE ONLY TERMS AND CONDITIONS OF THE AGREEMENT BETWEEN THE PARTIES. ANY AND ALL ADDITIONAL OR DIFFERENT TERMS, WHETHER IN A PURCHASE ORDER OR OTHER DOCUMENT GIVEN BEFORE OR AFTER THESE TERMS, ARE SPECIFICALLY REJECTED AND SHALL NOT BECOME PART OF THESE TERMS UNLESS AGREED TO IN WRITING BY THE COMPANY. 1. SCOPE These Terms shall apply to all quotations and offers made by and purchase orders accepted by the Company. These Terms shall govern, and acceptance of Buyer's order is conditioned upon Buyer's acceptance of these Terms irrespective of whether the Buyer accepts them by a written acknowledgement, by implication, or acceptance and payment of goods ordered hereunder. These Terms may in some instances conflict with some of the terms and conditions on the Buyer's form of purchase order or otherwise specified by the Buyer or these Terms may cover matters not addressed in the Buyer's documentation. Therefore, acceptance of the Buyer's purchase order is made only on the express understanding and condition that insofar as the terms and conditions of this acceptance conflict with any terms and conditions of the Buyer's purchase order or cover matters not addressed in the Buyer's documentation, the Company's terms and conditions shall govern, irrespective of whether the Buyer accepts these conditions by written acknowledgement, by implication, or by acceptance and payment of Products ordered. The Company's failure to object to provisions contained in any communication from Buyer shall not be deemed a waiver of the provisions herein. Any changes in these Terms must specifically be agreed to in writing, signed by a corporate officer of the Company, before becoming binding on either party. ​ 2. PRICES, TAXES AND DUTIES Prices are quoted in U.S. Dollars, and are subject to modification or withdrawal without notice. Prices are firm and not subject to renegotiation except at the Company's sole discretion. Unless otherwise specified or required by law, all prices will be quoted and billed exclusive of International duties, Foreign taxes, US Federal, US State, and local excise, sales and similar taxes. Buyer shall pay all excise, privilege, sales and value-added taxes and all custom duties, levies, franchise fees and other governmental charges, however designated, imposed by any governmental authority arising from the sale or the exportation or importation of the Products, and Buyer shall indemnify and hold Company, its sub-suppliers and carriers harmless from and against any and all expenses, costs, liabilities and claims arising out of or relating to Buyer's failure to fulfill such obligation Any price reductions based on volume discounts will be revoked, at the Company’s sole discretion, if the Buyer reduces the number of parts being purchased below volume discount levels. ​ 3. PAYMENT TERMS All payments shall be in U.S. Dollars. Where the Company has extended credit to the Buyer, the terms of payment shall be net thirty (30) days from the date of the Company invoice, upon approval from the Company credit department. The Company reserves the right to require payment in advance or C.O.D. If so requested by the Company, Buyer shall prepay the transportation, insurance charges and other expenses connected with the delivery of Products hereunder and add a separate charge, which represents such prepaid charges, to the shipping invoice accompanying the products shipped. If any sums due to the Company are not paid when due, interest shall accrue thereon at the rate of 1.5% per month until paid in full. The Company may, at any time or times, suspend performance of any order or require payment in cash, security or other adequate assurance satisfactory to the Company when, in Company’s opinion, the financial condition of Buyer or other grounds for insecurity warrant such action. The Company retains a purchase money security interest in all Products until Buyer has made payment in full. Payment is to be made in Alameda County, California. Any action to collect any sums due under this Agreement may be brought in Alameda County, California, and the parties’ consent to jurisdiction and venue in such County Cancellation or rescheduling of any order is only permissible under these Terms and Conditions if the request to do this is received in writing by the Company no later than seven calendar (7) days after the submission of the order. Any cancellation after that time will require the Buyer to pay liquidated damages in the amount of the full purchase price of the entire order. ​ 4. TITLE AND DELIVERY Unless otherwise agreed upon by the Company, all sales are made EXW (Incoterms 2000) point of shipment in the United States. The Company's liability to deliver ceases upon making delivery of material purchased hereunder to a common carrier at shipping point in good condition. The title for the purchased goods shall not pass to the Buyer until the Company has received in full all monies owed by the Buyer under this or any other agreement. All claims for damages must be filed with the carrier. Claims against the Company for shortages must be made within ten (10) days after arrival of shipment. The Company assumes no responsibility for delay, breakage or damage after having made delivery in good order to the carrier. Buyer agrees and understands that any delivery schedule set forth herein or in any subsequent order or release is estimated only and is presented in good faith by the Company. The Company shall not be liable to the Buyer for failure to meet any delivery schedule or for the costs of procurement of substitute goods. The Company reserves the right to make deliveries in installments. Additionally, the Company reserves the right to terminate these Terms or suspend delivery by written notice to Buyer if Buyer fails to make payment within the time specified or fails to accept delivery within the time specified. ​ 5. ACCEPTANCE Upon receipt of Products, Buyer shall count and inspect the same for damage, shortages and conformity to Specifications, if any, before execution of the shipping receipt accompanying such Products. If there is any damage, shortage or failure of conformity, Buyer must file a claim immediately with the carrier or the Company, as applicable. The Buyer shall accept or reject nonconforming Products and make any claims for damage or discrepancy between a shipping invoice and products delivered, shortages or other errors within 30 (thirty) days of receipt of each shipment of the Products. Failure to notify the Company in writing of nonconforming products and/or make a claim shall be deemed full acceptance of the Products delivered and a waiver of any and all such claims. No Product returns will be accepted by The Company without a Return Material Authorization ("RMA"). ​ 6. LIMITED WARRANTY The Company warrants to the Buyer that the products covered hereby shall be free from defects caused by faulty workmanship and defective materials and shall substantially conform to the Company's published specifications for a period of 90 (ninety) days. "Specifications" as used herein shall mean the guaranteed minimum and maximum levels set forth on The Company's published datasheets in effect at the time of sale. The Company reserves the right to modify the Specifications of components offered by the Company without notice. ​ The foregoing warranty does not apply to any products which have been subject to misuse (including static discharge), neglect, accident, or modification or which have been soldered or altered during assembly and are not capable of being tested by The Company under its normal test conditions. The Company makes no warranty with respect to sales of products purchased through unauthorized sales channels. The Company shall have no liability to the Buyer to the extent such failure is caused by non-compatibility with other components used by the Buyer. The Company shall make the final determination as to the existence or cause of any alleged defect. The Company's sole obligation and maximum liability to Buyer for products failing to meet the aforesaid warranty during the warranty period and which were found by the Company to be defective under the terms of this warranty shall be, at the Company's discretion, to rescreen, reprocess or replace the nonconforming product or issue Buyer credit for the purchase price of the nonconforming product, provided that: (1) the Company has received written notice of any nonconformity by Buyer within the warranty period, and (2) after the Company's written authorization to do so Buyer has returned the nonconforming product to the Company, freight prepaid, and (3) the Company has determined that the product is nonconforming and that such nonconformity is not a result of improper installation, repair, test, or other misuse by Buyer. If there is no response from the Buyer for 30 days, the product will be deemed acceptable and the nonconformance closed. ​ The Company's obligation to honor these warranties is contingent upon the Company's receipt of payment in full for the Products entitled to warranty. THE COMPANY DISCLAIMS ALL OTHER WARRANTIES, EXPRESS, IMPLIED, OR STATUTORY, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. The Company has not authorized anyone to make representation or warranty other than as provided herein. ​ Given the nature of the Products and their intended or potential uses, the Company cannot and does not represent or warrant the results of their use or application. ​ The foregoing states the entire warranty liability of the Company. ​ 7. INFRINGEMENT Buyer shall indemnify, defend and hold The Company harmless against any expense, damages, costs or losses resulting from any suit or proceeding brought for infringement of patents, trademarks, copyrights, trade secrets, or for unfair competition arising from compliance with Buyer's designs or specifications or instructions. The Company shall not be liable for any costs or damages incurred by Buyer as a result of any suit or proceeding brought against the Buyer and Buyer will indemnify, defend and hold the Company harmless from any expenses, damages, costs, or losses resulting from any suit or proceeding brought against the Company, either severally, or jointly with Buyer, so far as such suit or proceeding is based on claims that use of any product or any part thereof, furnished hereunder, in combination with products not supplied by the Company constitute either direct or contributory infringement of any patent, or copyright of the United States. Sales of products or any parts thereof, hereunder confers on the Buyer no license under any patent rights of the Company covering or relating to (a) the structure of any devices to which the products or parts may be applied, or (b) a process or machine in connection with which they may be used. ​ 8. FORCE OF NATURE The Company shall not be liable for any failure to perform due to unforeseen circumstances or to cause beyond The Company's control. Examples of such causes are acts of God, war, riot, embargoes, acts of civil or military authorities, fire, floods, accidents, pandemics, strikes, shortages of transportation facilities, fuel, labor or materials or for any other causes beyond the Company's reasonable control. In the event of any delay caused by such contingency, the date of delivery shall, at the discretion of the Company, be deferred for a period equal to the time of loss by reason of the delay. ​ 9. LIMITATION OF LIABILITY UNDER NO CIRCUMSTANCES WILL THE COMPANY, ITS EMPLOYEES, OFFICERS, AND/OR DIRECTORS, BE LIABLE TO ANYONE UNDER OR FOR BREACH OF THIS AGREEMENT, ANY PRODUCT ORDER, SCHEDULE OR TERM AND CONDITIONS HEREIN UNDER ANY CONTRACT, STRICT LIABILITY, TORT, NEGLIGENCE OR OTHER LEGAL OR EQUITABLE THEORY (EXCEPT ONLY IN THE CASE OF PERSONAL INJURY WHERE AND TO THE EXTENT THAT APPLICABLE LAW REQUIRES SUCH LIABILITY), WHETHER OR NOT FORESEEABLE OR FORESEEN, FOR: (1) BUSINESS INTERRUPTION COSTS, COSTS OF REWORK, RETESTING, PROCUREMENT OF SUBSTITUTE GOODS, REMOVAL AND REINSTALLATION OF GOODS; OR (2) ANY SPECIAL, INCIDENTAL EXEMPLARY, INDIRECT OR CONSEQUENTIAL DAMAGES, INCLUDING WITHOUT LIMITATION LOST PROFITS, LITIGATION COSTS, LOSS OF DATA, PRODUCTION OR PROFIT, GOODWILL, LOSS OF REVENUE, OR LOSS OF UNITS; REGARDLESS OF WHETHER THE BUYER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES, THERE IS A TOTAL AND FUNDAMENTAL BREACH OF THIS AGREEMENT OR WHETHER ANY REMEDY PROVIDED HEREIN FAILS OF ITS ESSENTIAL PURPOSE. THE LIMIT OF LIABILITY FOR ANY SUCH CLAIMS SHALL NOT EXCEED THE AMOUNT PAID OR REPAID ON ACCOUNT BY BUYER FOR THE PRODUCTS GIVING RISE TO SUCH CLAIMS. ​ 10. LIFE SUPPORT AND OTHER APPLICATIONS The Company's products are not authorized for use as critical components in life support devices or systems without the express written approval of the President of the Company. Products sold by the Company are not designed, intended or authorized for use in but not limited to life support, life sustaining, nuclear, or other applications, in which failure of such products could reasonably be expected to result in personal injury, loss of life or severe property or environmental damage. Buyer acknowledges that the use of the Company goods in such applications is understood to be fully at the risk of the Buyer and that Buyer is responsible for verification and validation of the suitability of the Company's products in such application. Buyer shall indemnify, defend and hold the Company harmless, and agrees that the Company is not liable, in whole or in part, for any claim, demand, cost, liability, penalty, expense or damage, including actual attorney's, consultant's and expert's fees and costs, arising from or relating to Buyer’s use or application of the Products. Buyer agrees to indemnify, defend and hold The Company harmless from and against all claims, damages losses, expenses and liabilities arising out of or in connection with such use or application. ​ 11. MIL-STD CLASS H AND CLASS K APPLICATIONS The Company's products are not authorized for use as critical components in MIL_STD Class H and Class K devices or systems without the express written approval of the President of the Company. Products sold by the Company are not designed, intended or authorized for use in but not limited to MIL-STD Class H and Class K devices or systems, or other applications. Buyer acknowledges that the use of the Company goods in such applications is understood to be fully at the risk of the Buyer and that Buyer is responsible for verification and validation of the suitability of the Company's products in such application. Buyer shall indemnify, defend and hold the Company harmless, and agrees that the Company is not liable, in whole or in part, for any claim, demand, cost, liability, penalty, expense or damage, including actual attorney's, consultant's and expert's fees and costs, arising from or relating to Buyer’s use in such applications. Buyer agrees to indemnify, defend and hold the Company harmless from and against all claims, damages losses, expenses and liabilities arising out of or in connection with such use. ​ 12. EXPORT CONTROL Buyer agrees to comply with all applicable laws and regulations of the United States and of the destination country. Buyer understands that the Company is subject to regulation by agencies of the U.S. government, including the U.S. Department of Commerce, which prohibit export or diversion of the Company's products to certain countries, and agrees it will not knowingly assist or participate in any such diversion or other violation of applicable U.S. laws and regulations. Buyer warrants that it shall not sell any Products in countries or to users not approved to receive classified technical equipment under applicable U.S. laws and regulations or that Buyer otherwise has knowledge of such laws and regulations, and that it will abide by such laws and regulations. Buyer shall hold harmless and indemnify the Company for any damages resulting to the Company from a breach of this paragraph by Buyer. ​ 13. RELATIONSHIP OF PARTIES The Company and Buyer expressly understand and agree the Buyer is an independent contractor in the performance of each and every part of this order, is solely responsible for all of its employees, agents and will indemnify the Company from any and all claims, liabilities, damages, debts, settlements, costs, attorney’s fees, expenses and liabilities of any type whatsoever that may arise on account of Buyer's activities or those of its employees or agents (including but not limited to, direct and indirect distributors or sub-distributors), including but not limited to unauthorized representations or warranties (or failing to effectively disclaim all warranties and liabilities on behalf of the Company to the same extent as disclaimed herein) to its customers. ​ 14. LEAD FREE, ROHS COMPLIANT PARTS The Company warrants to the Buyer to deliver products to be lead free and RoHS Compliant when ordered correctly from and shipped directly from the Company or its franchised and authorized distributors to the Buyer. The Company warrants these parts to have the same electrical performance as the non-lead free, non-RoHS Compliant versions. The Company does not warrant the lead free and RoHS packaging to be as reliable or more reliable as the non-lead free, non-RoHS Complaint packaging. The Company will not be liable for any packaging related failures of the lead-free, RoHS Compliant packages including but not limited to tin-whiskers related failures. The Company will not be liable for damages to the Buyer as a result of using non-lead free, non-RoHS Compliant parts in their end products that requires lead-free RoHS Compliant parts. Buyer shall indemnify, defend and hold the Company harmless against any expense, damages, costs or losses resulting from any suit or proceeding brought for the Buyer using non-lead free, non-RoHS Compliant parts in their end products which require lead-free RoHS Compliant parts. The Company shall not be liable for any costs or damages incurred by Buyer as a result of any suit or proceeding brought against the Buyer. Buyer will indemnify, defend and hold the Company harmless from any expenses, damages, costs, or losses resulting from any suit or proceeding brought against the Company, either severally, or jointly with Buyer, so far as such suit or proceeding is based on claims including but not limited to the supplying any non-lead free, non-RoHS Compliant parts in products that require lead-free RoHS Compliant parts. Non-lead free, non-RoHS Compliant parts will not be eligible for return for credit or replacement for failure to be lead free, and or RoHS Compliant packaging unless the Company agrees that the customer did order the lead-free, RoHS Compliant correctly, and that the Company shipped a non-lead free, non-RoHS Compliant part in error to the Buyer. ​ 15. PRODUCT DISCONTINUANCE The Company reserves the right to discontinue any Product at any time. The Company will attempt to provide customers with a twelve (12) month notice of Product discontinuances. In the event the Company is unable to provide the Buyer or third party with a twelve (12) month notice of Product discontinuance, the Company will not be liable for any cost or damages to the Buyer or any third party as a result of the Company product discontinuance and or lack of a twelve (12) month Product discontinuance notice to the Buyer or third party. ​ 16. ORDER ACCEPTANCE The Company reserves the right to not accept a purchase order. This includes but is not limited to a new Buyer, or an existing Buyer. The Company will not be liable for any cost or damages to the Buyer or any third party as a result of the Company’s non-acceptance of a purchase order and or lack of prior notice. ​ 17. DATECODE POLICY The Company does not accept any restrictions on the sale or shipment of parts based upon the device date code. The Company reserves the right to ship any date code for customer orders and samples. The Company does not acknowledge the existence of a correlation between field failures and date codes in excess of thirty-six (36) months. ​ 18. CONTROLLING LAW The terms and conditions contained herein shall be governed by and construed under the laws of the State of California. The sole jurisdiction and venue for actions related to the subject matter hereof shall be the state and U.S. federal courts in the State of California, located in Alameda County, California, U.S.A. ​ 19. GENERAL LEGAL The terms and conditions herein, constitute the entire contract between the parties and supersede all previous communications, whether oral or written. Any changes to this Agreement must be made only upon mutual agreement of the parties in writing. In the event that any section of these terms and conditions are deemed unenforceable, the remaining sections shall remain in force. Failure by the Company to strictly enforce any provision of these Terms shall not be deemed a waiver of such provision or create a course of dealing between the parties pursuant to which performance is not required. Any legal notice under this Agreement will be in writing and delivered by personal delivery, express courier, or certified or registered mail, postage prepaid and return receipt requested. Notices will be deemed to be effective upon personal delivery, one (1) day after deposit with express courier, five (5) days after deposit in the mail. Notices will be sent to the Company at the address set forth on the order form or such other address as the Company may specify. Notices will be sent to the Company at the following address: Linear Integrated Systems, Inc., 4042 Clipper Court, Fremont, CA 94538-6540, U.S.A. In any action or proceeding to enforce or construe this Agreement, the prevailing party shall be entitled to recover their actual attorney’s fees and costs. ​ Any purchases of selected products from the Company will include additional terms and conditions at the sole discretion of the Company. What does Linear Systems do with my personal information? Linear Systems will use the information you provide for legitimate business purposes which may include sharing some information with Linear Systems' authorized distributors. These legitimate business purposes may include facilitating future communications with you, assisting you in making a purchase of Linear Systems' products, or responding to your request for Linear Systems' information or samples. Linear Systems also reserves the right to collect and share personal information as part of an investigation or response to a violation of Linear Systems' terms and conditions, fraud, illegal activities or other actions or threats which may damage Linear Systems. Except for the aforementioned instances, Linear Systems will never share your personal information with third parties. ​ L ast updated: March 1, 2023 Privacy Policy Collection of Personal Information Visitors to the Linear Integrated Systems' web site are not required to reveal any personal information in order to use many of the features of the site. However, in some instances, Linear Systems requests that users provide certain personal information in order to facilitate future communications, make a purchase of Linear Systems' products, or receive other materials from Linear Systems. What does Linear Systems do with my personal information? Linear Systems will use the information you provide for legitimate business purposes which may include sharing some information with Linear Systems' authorized distributors. These legitimate business purposes may include facilitating future communications with you, assisting you in making a purchase of Linear Systems' products, or responding to your request for Linear Systems' information or samples. Linear Systems also reserves the right to collect and share personal information as part of an investigation or response to a violation of Linear Systems' terms and conditions, fraud, illegal activities or other actions or threats which may damage Linear Systems. Except the aforementioned instances, Linear Systems will never share your personal information with third parties. L ast updated: March 1, 2023