Linear Integrated Systems is a U.S.-based, full-service semiconductor manufacturer of specialty linear products. Since1987, we have been supplying pin-for-pin replacements for over 2,000 discrete devices which are currently offered orwere discontinued by Interfet, Intersil, Micro Power Systems, Motorola, National, Fairchild, Phillips, and Siliconix-Vishay.We strive to provide our customers with the necessary options, solutions, and technology to produce leadership endproducts.
Linear Integrated Systems is a U.S.-based, full-service semiconductor manufacturer of specialty linear products. Since1987, we have been supplying pin-for-pin replacements for over 2,000 discrete devices which are currently offered orwere discontinued by Interfet, Intersil, Micro Power Systems, Motorola, National, Fairchild, Phillips, and Siliconix-Vishay.We strive to provide our customers with the necessary options, solutions, and technology to produce leadership endproducts.
Linear Systems Application Notes
- High-Performance Military Sensor Signal Chains
- A Guide to Using JFETs for Voltage Controlled Circuits, Part 1
- Radiation Sensor Design and Applications: The 3N163
- Solving the Noise Puzzle with Low-Noise Matched Bipolar Transistor Pairs
- LSK389 Dual Monolithic JFET for Ultra-Low Noise Applications
- DMOS Analog Switch Introduction
- LSK489 Ultra Low Noise JFET
- Some Tips on Making a FETching Discrete Amplifier
- Consider the Discrete JFET When You Have a Priority Performance Objective
- A Guide to Using FETS for Sensor Applications
- Headphone Amplifier Evaluation Board
- LSJ689 Ultra Low Noise P-Channel Dual JFET
Linear Technology Application Notes
- AN113-Power Conversion, Measurement and Pulse Circuits
- AN124-775 Nanovolt Noise Measurement for A Low Noise
Siliconix Application Notes
- AN101-Introduction to FETs
- AN102-JFET Biasing Techniques
- AN103-The FET Constant-Current Source / Limiter
- AN104-Spice Parameters for Selected JFETs
- AN105-FET s as Voltage Controlled Resistors
Texas Instruments Application Notes
Bob Cordell
Jan Didden
Bob Dobkin and Jim Williams
- 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
Felix Levinzon
Douglas Self
- Designing Audio Power Amps, 2010, ISBN 007164024X
- The Audio Power Amplifier Design Handbook (Fifth Edition) 2009, ISBN 9780240521626
- Self on Audio (Second Edition) 2010, ISBN 075068166
- Small Signal Audio Design 2011, ISBN 9780240521770
Siliconix
- 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
- Designing with Field Effect Transistors (Second Edition) 1990 ISBN 007057537-1
- FET Technology and Applications 1989 ISBN 0824780507
- LSK389 Series
ID100-101DPAD/SSTDPAD SeriesSSTPAD5PAD-DFN SERIESPAD SeriesJPAD500JPAD50JPAD5JPAD200JPAD100JPAD10DPAD50DPAD5DPAD20DPAD2DPAD100DPAD10DPAD1LSJ74-SST74J/SST174-175-176-177J/SST111-112-1132N5114-5115-2N51162N5018-50192N/PN/SST4391-4392-4393SST5116SST5115SST5114SST113SST112SST111PN4391LSJ74DLSJ74CLSJ74BLSJ74ALS4393PLS4393LS4392LS4391PLS4391LS113LS112LS111J113AJ112AJ111A4391DFN2N43922N4391174DFN SERIESLSJ74-SST74J/SST201-202-203J/SST/U308-309-3102N/PN/SST4416-4416A2N/PN/SST4117A-4118A-4119ASSTJ212SSTJ211SST94SST5301SST4119SST4118SST4117SST210SST204PN4119PN4118PN4117PF5301LSK189LSK170X-1LSK170DLSK170CLSK170BLSK170ALSK170LSJ289LSBF510LS94LS846LS5301LS4119LS4118LS190LS/J212LS/J211LS/J210J2044117DFN SERIES2N41192N41182N4117SST/U440-441SST/U421-422-423-424-425-426LS/843-844-845LS/840-841-842LS/830-831-832-8332N/5911-5912-5912C-LS/5911-5912-5912C2N/3954A-3954-3955-3956-3958SST/U401-406PN5912LSU406LSU405LSU404LSU403LSU402LSU401LSK589LSK489LSK389DLSK389CLSK389BLSK389ALSJ689LS5912CLS5912LS5909LS5908LS5907LS3957LS5564SST215SST214SST213SST211SST210SD5401CYSD5401SD5400CYSD5400SD5001NSD5001SD5000NSD5000ISD5000SD215DESD215SD214DESD214SD213DESD213SD211DESD211SD210DESD210LS350-351-352LS310-311-312-313LS301-302-303LS/PF5301LS358LS3550CLS3550BLS3550ALS3550LS3250LS318LS311IT132IT131IT130AIT130IT124IT122IT121IT120AIT120
Lead-free / RoHS Fact Sheet
Linear Integrated Systems can supply parts that do not contain the following Banned Substances:
- Asbestos
- Azo Compounds
- Cadmium
- Cadmium Compounds
- Chlorinated Paraffins
- Hexavalent Chromium Compounds
- Formaldehyde
- Lead (Pb)
- Mirex (Perchlordecone)
- Mercury and Mercury Compounds
- Organic Tin Compounds (Tributyl Tin & Triphenyl Tin)
- Ozone Depletion Substances
- PBB(Polybromobiphenyl)
- PBDE (Polybromobiphenyl Biphenyls Ethers Category)
- PCB (Polychlorinated Biphenyls)
- Polychlorinated Naphthalene
Package Types
The following packages do not and have never contained any of the above mentioned substances:
- Bare Die, (Metal Can) TO-18, TO-5, TO-52, TO-71, TO-72, TO-78, TO-99
The following packages are available in Lead-Free / RoHS versions
- MSOP, QSOP, SOIC, SOT, TO-92
Metal Can Facts
- Headers-Nickel with Gold Plating, Cans-100% Nickel
Plastic Package Facts
- Plating Material: Plastic Packages- Matte 100% Tin
- Material of Lead Frame: Copper 194, or Alloy 42
- Lead Content of the Plating Material: Lead Free (Less than 0.1%, 1000ppm by weight)
- Soldering: Maximum Temperature=260 Degree C, Maximum Time=20-40 seconds
- Reflow Profile: Peak Temperature=260 Degree C, Peak Time=20-40 seconds
- Acceptable number of Reflows: 3 times
- Backward Compatibility: Lead Free packages can be soldered using existing Sn-Pb solder and temperature profiles
- Forward Compatibility: Lead Free Packages can be soldered using lead free solders and the appropriate higher temperature profiles
- Storage Conditions: Jedec Std. 20, Level 1
Questions:
Q1: When does Linear Systems plan to offer Lead Free/RoHS complaint packaging to its customers?
A1: Linear Systems began offering Lead Free/RoHS compliant packaging for plastic packages as of 1/1/04, per customer request.
Q2: Will Linear Systems continue to offer Non-Lead Free (contains lead) packaging to its customers?
A2: Yes, Linear Systems will continue to offer Non-Lead Free packaging, per customer request.
Q3: How do I order Lead Free parts versus Non-Lead Free Parts?
A3: When ordering, specify “Lead-Free” in your part description on Purchase Orders and Quotations.
Q4: How do I order RoHS Compliant Parts versus Non-RoHS Compliant Parts?
A4: When ordering, specify “RoHS Compliant” in your part description on Purchase Orders and Quotations.
Q5: How will I be able to identify a Lead-Free / RoHS Compliant Part versus a Non-Lead Free Part / Non RoHS Compliant Part?
A5: The Lead-Free RoHS Compliant Part will be marked with the letter “F”.
Q6: Are there any additional costs for ordering Lead-Free or RoHS Compliant Parts?
A6: Determined on a case by case basis.
Q7: What is the Linear Systems policy on Lead-Free implementation?
A7: Linear Systems will continue to supply requirements for both Lead-Free Parts and Non-Lead Free parts per customer request.
Q8: What is the Linear Systems policy on RoHS Compliant Part implementation?
A8: Linear Systems has begun converting to ROHS Compliant mold compound on all plastic Packages effective 1/1/05. All parts with date codes prior 1/1/05 are not made of RoHS compliant mold compound.
Ordering Information
- RoHS Compliant (Lead-Free and PBDE-Free) Parts:
The part description must include the term “RoHS Compliant”. Do not include the letter “F”, it must state RoHS Compliant. Purchase Orders that do not specificately state RoHS Compliant will be shipped either “Leaded-Parts”or “RoHS Compliant parts” depending on our inventory. - Leaded (Devices that contain lead) Parts:
The part description must include the term “Leaded Part”. Purchase Orders that do not specifically state “Leaded Part” will be shipped either “Leaded-Parts” or “RoHS Compliant parts” depending on our inventory. - Disclaimer:Linear Systems will not be responsible for accepting the return of any parts that were not ordered correctly by the customer.
Lead (Pb) Free / RoHS Compliant Parts List
The follow listed parts are currently available in Lead (Pb) Free and RoHS Compliant Packages.
Die and Metal Can Customers: The Bare Die and Metal Can Versions of the products listed were never manufactured with lead or any RoHS Banned Substances.
Plastic and Surface Mount Customers: The MSOP, QSOP, SOIC, SOT and TO-92 versions listed which may have previously contained lead and RoHS Banned Substances in the past, are now available in Lead (Pb) Free and RoHS Compliant Packages.
- All single devices available in TO-92, TO-18, SOT-23-3, Tested Die
- All Dual Devices available in PDIP, TO-71, TO-5, SOIC-8, SOT23-6, Tested Die
- All Single DMOS Switches available in TO-72, SOT-143, Tested Die
- All Quad DMOS Switches available in PDIP, Sidebraze, SOIC-14, SOIC-16, Tested Die