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< Back Linear Integrated Systems Expands Custom Testing Services to Provide Designers Greater Optimization and Flexibility Linear Systems Dec 25, 2024 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. Available Custom Testing Services Include: Linear Systems' Expanded Custom Testing Services give designers more options to push beyond standard datasheets. With over 37 years of wafer processing expertise, Linear Systems offers the ability to target specific DC datasheet parameters. Ultra Low Noise N-Channel and P-Channel Monolithic Dual and Single JFETs Low Noise NPN & PNP Monolithic Dual Transistors High-Speed Analog Quad and Single DMOS Switches Ultra Low Leakage Monolithic Dual and Single Diodes Single Current Regulating Diodes N-Channel and P-Channel MOSFETs (Monolithic Dual and Single) At a Glance: With over 37 years of wafer processing expertise, Linear Systems offers the ability to target specific DC datasheet parameters, providing designers with tailored ranges for optimal performance. Popular specifications include: Threshold Voltage Breakdown Voltage Leakage Beta/HFE GM Idss Rds (on) Linear Systems' products are available in die form, surface-mount, and through-hole packages, ensuring versatility for various design needs. Why It Matters: Linear Systems' Expanded Custom Testing Services give designers more options to push beyond the limitations of standard datasheets. This eliminates the labor-intensive process of hand-screening parts and reduces costs by avoiding purchases of devices that don't meet specific requirements. Additionally, customers with source control drawings facing part discontinuance can use these services as a cost-effective alternative to redesigns or program discontinuance. Applications: These enhanced services are ideal for amplifier and switching applications in industries such as: Test and Measurement Hybrid Electronics Professional Audio Medical Electronics Piezoelectric Sensors Defense and Aerospace Space/Satellite Systems About Linear Integrated Systems: Founded in 1987 by John M. Hall, Cindy L. Johnson, and John H. Hall, Linear Integrated Systems, Inc. is a privately held designer and manufacturer of small-signal discrete semiconductors based in Fremont, CA. With a legacy of innovation, John H. Hall, a co-founder of Intersil and the founder of Micro Power Systems, brought significant expertise to the company, solidifying Linear Systems as a trusted partner for high-performance semiconductor solutions. For more information about Linear Systems and its Expanded Custom Testing Services, call (510) 490-9160, email sales@linearsystems.com or visit www.linearsystems.com . Linear Systems offers a diverse product line, including Dual JFET Amplifiers , Single JFET Amplifiers , JFET Switches , DMOS High Speed Switches , Low Leakage Diodes , Current Regulating Diodes , Bipolar Transistors , MOSFETs , Voltage Controlled Resistors and BIFET Amplifiers . Visit www.linearsystems.com to download our 2024 Data Book , Cross Reference Guide , datasheets, SPICE models, application notes , and more. Stay connected and join our growing LinkedIn community for updates and insights. You can also follow us on YouTube , Facebook , Instagram and X . Contact: Sales@linearsystems.com Phone: (510) 490-9160Website: www.linearsystems.com

Linear Systems Purchase Order Terms and Conditions Purchase Order 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. 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. 15. 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. 16. 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. 17. 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. 18. 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. 19. GENERAL LEGAL Linear Systems sells product based on our Terms & Conditions, not those of the purchaser. 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 K 052825 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. Rev. A 03202023

< Back What are Current Regulating Diodes Linear Systems Oct 7, 2024 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. 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. How do they work? A standard diode allows current to flow freely in one direction and blocks it in the other direction. In contrast, a current regulating diode has a larger depletion region and a lower reverse breakdown voltage, which allows for more precise control of the current flow. When used in series with a load, the current regulating diode maintains a stable voltage drop across itself by varying its own resistance depending on the current flow. This means that as the load resistance changes, the voltage drop across the diode remains constant and therefore maintains a consistent current flow. Applications Current regulating diodes are commonly used in circuits where stable and precise current control is necessary, such as in LED lighting systems, battery charging circuits, and laser diode drivers. They can also be used as protection devices to limit the amount of current flowing through sensitive components. In addition, these diodes are often utilized in adjustable power supplies to regulate the output current and prevent damage to connected devices. Types of Current Regulating Diodes There are two main types of current regulating diodes: Zener diodes and avalanche diodes. Zener diodes operate in the reverse breakdown region, where they maintain a constant voltage despite changes in current flow. This makes them ideal for use as voltage regulators. Avalanche diodes, on the other hand, operate in the avalanche breakdown region and are used for higher voltage applications. They have a steeper current-voltage characteristic compared to Zener diodes, allowing for more precise control of the current flow. Advantages and Disadvantages The main advantage of using current regulating diodes is their ability to provide stable and accurate current control without the need for additional external components. This saves space and simplifies circuit design. However, one disadvantage is that these diodes can be sensitive to changes in temperature, which can affect their current regulation capabilities. In addition, they have a limited maximum current handling capacity, so they may not be suitable for high power applications. Conclusion In conclusion, current regulating diodes are essential components in many electronic circuits where precise and stable current control is necessary. They come in various types and offer advantages such as simplicity of use and compact size. However, care must be taken when using these diodes to ensure proper operation under different conditions. With continued advancements in technology, it is likely that we will see further improvements and developments in the field of current regulating diodes. So next time you encounter a circuit that requires precise current control, consider using a current regulating diode to achieve optimal performance. With their unique properties and benefits, these diodes are sure to play a significant role in the future of electronics. With the ever-growing demand for more efficient and reliable electronic devices, it is important to have a thorough understanding of different electronic components such as current regulating diodes. By having knowledge about their operation, advantages and limitations, you can make informed decisions when designing circuits for various applications. So keep exploring and learning about these fascinating components and discover new ways to incorporate them into your designs.

TIGHT MATCHING, MONOLITHIC DUAL, PNP TRANSISTOR < Back LS350 Series TIGHT MATCHING, MONOLITHIC DUAL, PNP TRANSISTOR Previous Next

< Back Solving the Noise Puzzle Introduction Noise is one of the more important aspects of circuit design. Lower noise in audio amplifier design means better quality audio. Low-noise in instrument design means more reliable and accurate measurements at lower voltage and current levels. And low-noise in current source designs means less noise injected into the electronic system. One of the most basic approaches to reduce noise in an amplifier is to use low-noise components. This would include low-noise bipolar transistors and low-valued resistors. Although one can use low-noise operational amplifiers in the design of low-noise circuits or low-noise current sources it is often not done. This is because lower noise can be often be obtained with a well-thought out discrete design. And that’s because discrete transistors offer much more design customization capability for specific circuit applications – like optimized collector biasing. One must remember that monolithic chip designs are built for the most part for general purpose applications. It is hard to tailor a specific op amp or current source chip for a specific source resistance, specific power consumption requirement and a specific bandwidth that will lower the overall noise – that is unless you add-on more compensation components. Read More

LOG CONFORMANCE, MONOLITHIC DUAL, NPN TRANSISTOR < Back LS318 LOG CONFORMANCE, MONOLITHIC DUAL, NPN TRANSISTOR The LS318 Log Conformance, Monolithic Dual, NPN Transistor is a direct replacement for the Micro Power Systems MP318 Series. It is ideal for Log Conformance, Transistors 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: LS318 TO-71 6L RoHS LS318 TO-78 6L RoHS LS318 PDIP 8L RoHS LS318 SOIC 8L RoHS LS318 Die Datasheet Spice Model Application Notes

< Back Burning Amp Festival Linear Systems Mar 17, 2023 Burning Amp Festival - A DIY Audio Gathering Burning Amp Festival Every year Linear Systems sponsors one of the audio industry’s best-regarded DIY amplifier design, display and discussion events, Burning Amp Festival. Here audio enthusiasts enjoy sharing their displays and demonstrations of incredible audio projects, and talk-shop with renowned industry leaders. Speakers such as audio legend Nelson Pass, take the stage to discuss recent projects and engage with the crowd in a Q&A session. It’s no wonder Burning Amp continually attracts audio DIYers from around the world! Burning Amp typically takes place in late October/early November. In past years the event has been held at various locations throughout the Bay Area, such as Fort Mason in San Francisco, CA. Due to COVID-19, this year’s event is cancelled, but we look forward with great anticipation to the Burning Amp Festival 2021.Interested in presentations from past years speakers? Visit our YouTube Channel: www.youtube.com/user/LinearSystemsUSA

DFN PACKAGE, SINGLE P-CHANNEL JFET SWITCH < Back 174DFN Series DFN PACKAGE, SINGLE P-CHANNEL JFET SWITCH The 174DFN Series Low On-Resistance, P-Channel JFET Switch is a direct replacement for the Fairchild and Siliconix-Vishay part series. It is ideal for low resistance, low operating current switching applications. Available in the DFN 8L 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 series: 174DFN 8L RoHS 175DFN 8L RoHS 176DFN 8L RoHS 177DFN 8L RoHS J174 TO-92 3L RoHS J175 TO-92 3L RoHS J176 TO-92 3L RoHS J177 TO-92 3L RoHS SST174 SOT-23 3L RoHS SST175 SOT-23 3L RoHS SST176 SOT-23 3L RoHS SST177 SOT-23 3L RoHS J174 Die J175 Die J176 Die J177 Die Datasheet Spice Model Application Notes

P-CHANNEL JFET, VOLTAGE CONTROLLED RESISTOR < Back LS26VPS_ P-CHANNEL JFET, VOLTAGE CONTROLLED RESISTOR The LS26VPS is a P-Channel Single JFET voltage-controlled resistor. It has a drain-source resistance that is controlled by a DC bias voltage (VGS) applied to a high impedance gate terminal. Minimum RDS of 20 Ω occurs when VGS = 3.0V. As VGS approaches the pinch-off voltage of 7.5V, RDS rapidly increases to the maximum value or RDS = 50 Ω. For the N-Channel version, please see our LS26VNS. Both the N and P-channel parts are made from the same die geometry, making them complimentary. This part is available in the TO-92 3L RoHS, SOT-23 3L RoHS and DFN 8L 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: LS26VPS TO-92 3L RoHS LS26VPS SOT-23 3L RoHS LS26VPS DFN 8L RoHS Datasheet Spice Model Application Notes

SINGLE, LOW-LEAKAGE PICO AMP DIODES DFN PACKAGE < Back PAD Series DFN Package PAD-DFN SERIES MINIATURE/NON MAGNETIC 8-PIN DFN PACKAGE LOW LEAKAGE DIODE The PAD Series Ultra-Low Leakage, Protection Diode is a direct replacement for the Siliconix-Vishay part series. It is ideal for Pico Amp, Ultra-Low Leakage, Protection Diode Applications. This part series is available in the mineature DFN 8L RoHS package, as well as the TO-72 3L RoHS, TO-92 2L RoHS and SOT-23 3L RoHS and 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: PAD1 DFN 8L RoHS PAD2 DFN 8L RoHS PAD5 DFN 8L RoHS PAD10 DFN 8L RoHS PAD20 DFN 8L RoHS PAD50 DFN 8L RoHS PAD100 DFN 8L RoHS PAD1 TO-72 3L RoHS PAD2 TO-72 3L RoHS PAD5 TO-72 3L RoHS PAD10 TO-72 3L RoHS PAD20 TO-72 3L RoHS PAD50 TO-72 3L RoHS PAD100 TO-72 3L RoHS JPAD1 TO-92 2L RoHS JPAD2 TO-92 2L RoHS JPAD5 TO-92 2L RoHS JPAD10 TO-92 2L RoHS JPAD20 TO-92 2L RoHS JPAD50 TO-92 2L RoHS JPAD100 TO-92 2L RoHS PAD1 SOT-23 3L RoHS PAD2 SOT-23 3L RoHS PAD5 SOT-23 3L RoHS PAD10 SOT-23 3L RoHS PAD20 SOT-23 3L RoHS PAD50 SOT-23 3L RoHS PAD100 SOT-23 3L RoHS PAD1 Die PAD2 Die PAD5 Die PAD10 Die PAD20 Die PAD50 Die PAD100 Die Datasheet Spice Model Application Notes

J111 SERIES LOW LEAKAGE, N-CHANNEL JFET SWITCH < Back J/SST111 Series J111 SERIES LOW LEAKAGE, N-CHANNEL JFET SWITCH The J/SST111 Series Low Leakage, N-Channel JFET Switch is a direct replacement for the Siliconix-Vishay equivalent part. It is ideal for fast switching, low leakage, switching applications. Available in the TO-92 3L RoHS and SOT-23 3L RoHS package, as well as in die from. 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: J111 TO-92 3L RoHS J112 TO-92 3L RoHS J113 TO-92 3L RoHS SST111 SOT-23 3L RoHS SST112 SOT-23 3L RoHS SST113 SOT-23 3L RoHS J111 Die J112 Die J113 Die Datasheet Spice Model Application Notes

2N5114 SERIES LOW ON-RESISTANCE, P-CHANNEL JFET SWITCH < Back 2N5114 Series 2N5114 SERIES LOW ON-RESISTANCE, P-CHANNEL JFET SWITCH The 2N5114 Series Low On-Resistance, P-Channel JFET Switch is a direct replacement for Siliconix-Vishay equivalent part. It is ideal for low resistance, low capacitance switching applications. Available in TO-18 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 series: 2N5114 TO-18 3L RoHS 2N5115 TO-18 3L RoHS 2N5116 TO-18 3L RoHS 2N5114 Die 2N5115 Die 2N5116 Die Datasheet Spice Model Application Notes