PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

S51034Transistor

Fairchild Semiconductor Corp · NSN 5961-01-254-0993 · FSC 5961 · No Item Name Available
Verified by PartsTable
NSN 5961-01-254-0993 — this item is cataloged by the U.S. Government under National Stock Number 5961-01-254-0993. Primary manufacturer part number: S51034.
Features
  • Transistor — FSC 5961
  • Overall Diameter: 0.370 INCHES MAXIMUM IN
  • Power Rating Per Characteristic: 10.0 WATTS MAXIMUM TOTAL POWER DISSIPATION
  • Terminal Type and Quantity: 3 UNINSULATED WIRE LEAD
  • Internal Configuration: JUNCTION CONTACT
  • Semiconductor Material: SILICON
  • Terminal Length: 0.500 INCHES MINIMUM IN
  • Criticality Code Justification: FEAT
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transistor, cataloged under National Stock Number 5961-01-254-0993, is classified within Federal Supply Class 5961 (No Item Name Available) of the Electrical and Electronic Equipment Components group. The primary manufacturer of record is Fairchild Semiconductor Corp. Government technical data includes 12 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. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5961-01-254-0993
Primary Part NumberS51034
Item NameTransistor
FSC / FSG5961 / 59 — No Item Name Available
ManufacturerFairchild Semiconductor Corp
StatusACTIVE
Overall Diameter0.370 INCHES MAXIMUM IN
Power Rating Per Characteristic10.0 WATTS MAXIMUM TOTAL POWER DISSIPATION
Terminal Type and Quantity3 UNINSULATED WIRE LEAD
Internal ConfigurationJUNCTION CONTACT
Semiconductor MaterialSILICON
Terminal Length0.500 INCHES MINIMUM IN
Criticality Code JustificationFEAT
Joint Electronic Device Engineering Council/jedec/case Outline DesignationTO-5
Mounting MethodTERMINAL
Voltage Rating in Volts Per Characteristic-100.0 MAXIMUM COLLECTOR TO BASE VOLTAGE, DC AND -100.0 MAXIMUM COLLECTOR TO EMITTER VOLTAGE/STATIC/BASE OPEN AND -4.0 MAXIMUM EMITTER TO BASE VOLTAGE, DC
Features ProvidedHERMETICALLY SEALED CASE
Current Rating Per Characteristic1.00 AMPERES MAXIMUM COLLECTOR CURRENT, DC AND 0.50 AMPERES MAXIMUM BASE CURRENT, DC
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
5935-00-240-3340JK43 INTERCHANGEABLE
Jack,telephone
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
5961-00-469-99841018801-001 INTERCHANGEABLE
Semiconductor Devices,unitized
Anacomp, Inc.
Cross-Reference Index
Part NumberManufacturer
S51034 Fairchild Semiconductor Corp (USA)
MIL-PRF-19500/582 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
JANTX2N5679 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
ST1086 Freescale Semiconductor, Inc. (USA)
130-017-1086 Bell Textron Inc (USA)
Related Parts
5935-00-240-3340INTERCHANGEABLE
JACK,TELEPHONE
JK43
5961-00-469-9984INTERCHANGEABLE
SEMICONDUCTOR DEVICES,UNITIZED
1018801-001

Frequently Asked Questions

What is NSN 5961-01-254-0993?

NSN 5961-01-254-0993 is a Transistor, manufactured by Fairchild Semiconductor Corp, classified under FSC 5961 (No Item Name Available). Status: active.

What are the part numbers for NSN 5961-01-254-0993?

NSN 5961-01-254-0993 has 5 cross-referenced part numbers: S51034 (Fairchild Semiconductor Corp), MIL-PRF-19500/582 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), JANTX2N5679 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), ST1086 (Freescale Semiconductor, Inc.), 130-017-1086 (Bell Textron Inc).

What NSN replaces 5961-01-254-0993?

There are 2 known substitutes for 5961-01-254-0993: 5935-00-240-3340, 5961-00-469-9984. Verify interchangeability with system specifications before substitution.

What are the specifications of S51034?

Key specifications for S51034: Overall Diameter: 0.370 INCHES MAXIMUM IN; Power Rating Per Characteristic: 10.0 WATTS MAXIMUM TOTAL POWER DISSIPATION; Terminal Type and Quantity: 3 UNINSULATED WIRE LEAD; Internal Configuration: JUNCTION CONTACT. 14 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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