PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

LM140K-12/883Microcircuit,linear

National Semiconductor Corporation · NSN 5962-01-278-9309 · FSC 5962 · No Item Name Available
Verified by PartsTable
NSN 5962-01-278-9309 — this item is cataloged by the U.S. Government under National Stock Number 5962-01-278-9309. Primary manufacturer part number: LM140K-12/883.
Features
  • Microcircuit,linear — FSC 5962
  • Design Function and Quantity: 1 REGULATOR, VOLTAGE
  • Storage Temp Range: -65.0 TO 150.0 CELSIUS DEGC
  • Operating Temp Range: -55.0 TO 150.0 CELSIUS DEGC
  • Inclosure Configuration: CAN
  • Maximum Power Dissipation Rating: 20.0 WATTS
  • Features Provided: MONOLITHIC AND FIXED AND POSITIVE OUTPUTS AND HERMETICALLY SEALED
  • Case Outline Source and Designator: TO-3 JOINT ELECTRON DEVICE ENGINEERING COUNCIL
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Microcircuit,linear, cataloged under National Stock Number 5962-01-278-9309, 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 5 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5962-01-278-9309
Primary Part NumberLM140K-12/883
Item NameMicrocircuit,linear
FSC / FSG5962 / 59 — No Item Name Available
ManufacturerNational Semiconductor Corporation
StatusACTIVE
Design Function and Quantity1 REGULATOR, VOLTAGE
Storage Temp Range-65.0 TO 150.0 CELSIUS DEGC
Operating Temp Range-55.0 TO 150.0 CELSIUS DEGC
Inclosure ConfigurationCAN
Maximum Power Dissipation Rating20.0 WATTS
Features ProvidedMONOLITHIC AND FIXED AND POSITIVE OUTPUTS AND HERMETICALLY SEALED
Case Outline Source and DesignatorTO-3 JOINT ELECTRON DEVICE ENGINEERING COUNCIL
Input Circuit Pattern2 CHANNEL
Body Height0.250 INCHES MINIMUM AND 0.450 INCHES MAXIMUM IN
Body Length1.573 INCHES MAXIMUM IN
Terminal Surface TreatmentTIN
Body Width1.050 INCHES MAXIMUM IN
Inclosure MaterialMETAL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
5962-01-042-2139LM7812KC/883 INTERCHANGEABLE
Microcircuit,linear
National Semiconductor Corporation
5962-01-084-5554 INTERCHANGEABLE
Microcircuit,linear
5962-01-172-3660SG7812K/883B INTERCHANGEABLE
Microcircuit,linear
Microsemi Corp Analog Mixed Signal Group
Cross-Reference Index
Part NumberManufacturer
52214-4 Hamilton Standard Electronics Systems Inc Tele-Dynamics Div (USA)
LM140K-12/883 PRIMARY National Semiconductor Corporation (USA)
UA7B12KMQB Fairchild Semiconductor Corp (USA)
UA7812KMQB Fairchild Semiconductor Corp (USA)
7812BZBJC Freescale Semiconductor, Inc. (USA)
Related Parts
5962-01-042-2139INTERCHANGEABLE
MICROCIRCUIT,LINEAR
LM7812KC/883
5962-01-084-5554INTERCHANGEABLE
MICROCIRCUIT,LINEAR
5962-01-172-3660INTERCHANGEABLE
MICROCIRCUIT,LINEAR
SG7812K/883B

Frequently Asked Questions

What is NSN 5962-01-278-9309?

NSN 5962-01-278-9309 is a Microcircuit,linear, manufactured by National Semiconductor Corporation, classified under FSC 5962 (No Item Name Available). Status: active.

What are the part numbers for NSN 5962-01-278-9309?

NSN 5962-01-278-9309 has 5 cross-referenced part numbers: 52214-4 (Hamilton Standard Electronics Systems Inc Tele-Dynamics Div), LM140K-12/883 (National Semiconductor Corporation), UA7B12KMQB (Fairchild Semiconductor Corp), UA7812KMQB (Fairchild Semiconductor Corp), 7812BZBJC (Freescale Semiconductor, Inc.).

What NSN replaces 5962-01-278-9309?

There are 3 known substitutes for 5962-01-278-9309: 5962-01-042-2139, 5962-01-084-5554, 5962-01-172-3660. Verify interchangeability with system specifications before substitution.

What are the specifications of LM140K-12/883?

Key specifications for LM140K-12/883: Design Function and Quantity: 1 REGULATOR, VOLTAGE; Storage Temp Range: -65.0 TO 150.0 CELSIUS DEGC; Operating Temp Range: -55.0 TO 150.0 CELSIUS DEGC; Inclosure Configuration: CAN. 13 total characteristics are documented in the Federal Logistics Information System.

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