PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

LM340T12Microcircuit,linear

National Semiconductor Corporation · NSN 5962-01-016-2681 · FSC 5962 · No Item Name Available
Verified by PartsTable
NSN 5962-01-016-2681 — this item is cataloged by the U.S. Government under National Stock Number 5962-01-016-2681. Primary manufacturer part number: LM340T12.
Features
  • Microcircuit,linear — FSC 5962
  • Maximum Power Dissipation Rating: 18.0 WATTS
  • Storage Temp Range: -65.0 TO 150.0 CELSIUS DEGC
  • Body Width: 0.395 INCHES MINIMUM AND 0.410 INCHES MAXIMUM IN
  • Body Height: 0.160 INCHES MINIMUM AND 0.190 INCHES MAXIMUM IN
  • Inclosure Configuration: SINGLE-IN-LINE
  • Body Length: 0.575 INCHES MINIMUM AND 0.600 INCHES MAXIMUM IN
  • Inclosure Material: PLASTIC
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Microcircuit,linear, cataloged under National Stock Number 5962-01-016-2681, is classified within Federal Supply Class 5962 (No Item Name Available) of the Electrical and Electronic Equipment Components group. The primary manufacturer of record is National Semiconductor Corporation. Government technical data includes 13 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 16 commercial cross-references from 13 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5962-01-016-2681
Primary Part NumberLM340T12
Item NameMicrocircuit,linear
FSC / FSG5962 / 59 — No Item Name Available
ManufacturerNational Semiconductor Corporation
StatusCANCELLED
Maximum Power Dissipation Rating18.0 WATTS
Storage Temp Range-65.0 TO 150.0 CELSIUS DEGC
Body Width0.395 INCHES MINIMUM AND 0.410 INCHES MAXIMUM IN
Body Height0.160 INCHES MINIMUM AND 0.190 INCHES MAXIMUM IN
Inclosure ConfigurationSINGLE-IN-LINE
Body Length0.575 INCHES MINIMUM AND 0.600 INCHES MAXIMUM IN
Inclosure MaterialPLASTIC
Operating Temp Range-0.0 TO 70.0 CELSIUS DEGC
Input Circuit Pattern1 INPUT
Terminal Surface TreatmentTIN
Case Outline Source and DesignatorT0-220 JOINT ELECTRON DEVICE ENGINEERING COUNCIL
Design Function and Quantity1 REGULATOR, VOLTAGE
Features ProvidedMONOLITHIC AND POSITIVE OUTPUTS AND INTERNALLY COMPENSATED
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 5
1560-00-145-8852138236 INTERCHANGEABLE
Support
Lockheed Martin Corp
5962-01-073-8508156-0285-00 INTERCHANGEABLE
Microcircuit,linear
Tektronix, Inc.
5962-01-115-77131SPS330128 INTERCHANGEABLE
Microcircuit,linear
Bae Systems Information and Electronic Systems Integration Inc.
5962-01-179-0509LM340T-12 INTERCHANGEABLE
Microcircuit,linear
Texas Instruments Incorporated
5962-01-198-8906C7296 INTERCHANGEABLE
Microcircuit,linear
Howell Instruments, Inc. Dba Howell Instruments Inc
Cross-Reference Index
Part NumberManufacturer
178-339 Autek Systems Corp (USA)
7503600-904-3 Univox-California (USA)
LM340T12 National Semiconductor Corp (USA)
LM340T-12V National Semiconductor Corporation (USA)
178-339 Systron-Donner Corp Microwave/instrument Div (USA)
LM340T12 PRIMARY National Semiconductor Corporation (USA)
MC7712CP Freescale Semiconductor, Inc. (USA)
445/4/03582 Plessey Military Communications Ltd (GBR)
7812UC Fairchild Semiconductor Corp (USA)
LM340T12A Adelco Elektronik Gmbh (DEU)
138236 Dictaphone Corporation (USA)
471-5841 Rs Components SAS (FRA)
LM340-12 National Semiconductor Corporation (USA)
6010009-004 PRIMARY Bae Systems Information and Electronic Systems Integration Inc. Div Bae Systems Information & Electronic Systems Integration Inc (USA)
LM340T12 Adelco Elektronik Gmbh (DEU)
4200280000 Aeroflex France (FRA)
Related Parts
1560-00-145-8852INTERCHANGEABLE
SUPPORT
138236
5962-01-073-8508INTERCHANGEABLE
MICROCIRCUIT,LINEAR
156-0285-00
5962-01-115-7713INTERCHANGEABLE
MICROCIRCUIT,LINEAR
1SPS330128
5962-01-179-0509INTERCHANGEABLE
MICROCIRCUIT,LINEAR
LM340T-12
5962-01-198-8906INTERCHANGEABLE
MICROCIRCUIT,LINEAR
C7296

Frequently Asked Questions

What is NSN 5962-01-016-2681?

NSN 5962-01-016-2681 is a Microcircuit,linear, manufactured by National Semiconductor Corporation, classified under FSC 5962 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5962-01-016-2681?

NSN 5962-01-016-2681 has 16 cross-referenced part numbers: 178-339 (Autek Systems Corp), 7503600-904-3 (Univox-California), LM340T12 (National Semiconductor Corp), LM340T-12V (National Semiconductor Corporation), 178-339 (Systron-Donner Corp Microwave/instrument Div) and 11 more.

What NSN replaces 5962-01-016-2681?

There are 5 known substitutes for 5962-01-016-2681: 1560-00-145-8852, 5962-01-073-8508, 5962-01-115-7713 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of LM340T12?

Key specifications for LM340T12: Maximum Power Dissipation Rating: 18.0 WATTS; Storage Temp Range: -65.0 TO 150.0 CELSIUS DEGC; Body Width: 0.395 INCHES MINIMUM AND 0.410 INCHES MAXIMUM IN; Body Height: 0.160 INCHES MINIMUM AND 0.190 INCHES MAXIMUM IN. 13 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5962-01-016-2681 still in active supply?

NSN 5962-01-016-2681 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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