PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MIL-PRF-19500/512Transistor

Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M · NSN 5961-01-143-5109 · FSC 5961 · No Item Name Available
Verified by PartsTable
NSN 5961-01-143-5109 — this item is cataloged by the U.S. Government under National Stock Number 5961-01-143-5109. Primary manufacturer part number: MIL-PRF-19500/512.
Features
  • Transistor — FSC 5961
  • Electrode Internally-Electrically Connected to Case: COLLECTOR
  • Voltage Rating in Volts Per Characteristic: -80.0 MAXIMUM COLLECTOR TO BASE VOLTAGE/STATIC/EMITTER OPEN AND -80.0 MAXIMUM COLLECTOR TO EMITTER VOLTAGE/STATIC/BASE OPEN AND -5.0 MAXIMUM EMITTER TO BASE VOLTAGE, STATIC, COLLECTOR OPEN
  • Power Rating Per Characteristic: 0.5 WATTS MAXIMUM TOTAL POWER DISSIPATION
  • Test Data Document: 81349-MIL-S-19500 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.).
  • Mounting Method: TERMINAL
  • Maximum Operating Temp Per Measurement Point: 200.0 CELSIUS AMBIENT AIR DEGC
  • Current Rating Per Characteristic: -1.00 AMPERES MAXIMUM COLLECTOR CURRENT, DC
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transistor, cataloged under National Stock Number 5961-01-143-5109, 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 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M. Government technical data includes 16 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5961-01-143-5109
Primary Part NumberMIL-PRF-19500/512
Item NameTransistor
FSC / FSG5961 / 59 — No Item Name Available
ManufacturerMilitary Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
StatusACTIVE
Electrode Internally-Electrically Connected to CaseCOLLECTOR
Voltage Rating in Volts Per Characteristic-80.0 MAXIMUM COLLECTOR TO BASE VOLTAGE/STATIC/EMITTER OPEN AND -80.0 MAXIMUM COLLECTOR TO EMITTER VOLTAGE/STATIC/BASE OPEN AND -5.0 MAXIMUM EMITTER TO BASE VOLTAGE, STATIC, COLLECTOR OPEN
Power Rating Per Characteristic0.5 WATTS MAXIMUM TOTAL POWER DISSIPATION
Test Data Document81349-MIL-S-19500 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.).
Mounting MethodTERMINAL
Maximum Operating Temp Per Measurement Point200.0 CELSIUS AMBIENT AIR DEGC
Current Rating Per Characteristic-1.00 AMPERES MAXIMUM COLLECTOR CURRENT, DC
Semiconductor MaterialSILICON
Internal ConfigurationJUNCTION CONTACT
Specification/standard Data81349-MIL-S-19500/512 GOVERNMENT SPECIFICATION
Joint Electronic Device Engineering Council/jedec/case Outline DesignationTO-18
Terminal Type and Quantity3 UNINSULATED WIRE LEAD
Terminal Length0.500 INCHES MINIMUM AND 0.750 INCHES MAXIMUM IN
Overall Diameter0.209 INCHES MINIMUM AND 0.230 INCHES MAXIMUM IN
Terminal Circle Diameter0.100 INCHES NOMINAL IN
Features ProvidedHERMETICALLY SEALED CASE AND QUALITY ASSURANCE LEVEL TX
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
5961-01-047-9231 INTERCHANGEABLE
Transistor
5961-01-067-7294 INTERCHANGEABLE
Transistor
5961-01-165-2733 INTERCHANGEABLE
Transistor
5961-01-183-6503 INTERCHANGEABLE
Transistor
5961-01-235-3286 INTERCHANGEABLE
Transistor
5980-01-349-9924 INTERCHANGEABLE
Light Emitting Diode
Cross-Reference Index
Part NumberManufacturer
MIL-PRF-19500/512 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
04ES025-1 Raytheon Co ESD Long Island Div (USA)
MIL-S-19500/512 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
JANTX2N4029 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
10133315 Nimikkeistokeskus Ncb Finland (FIN)
Related Parts
5961-01-047-9231INTERCHANGEABLE
TRANSISTOR
5961-01-067-7294INTERCHANGEABLE
TRANSISTOR
5961-01-165-2733INTERCHANGEABLE
TRANSISTOR
5961-01-183-6503INTERCHANGEABLE
TRANSISTOR
5961-01-235-3286INTERCHANGEABLE
TRANSISTOR
5980-01-349-9924INTERCHANGEABLE
LIGHT EMITTING DIODE

Frequently Asked Questions

What is NSN 5961-01-143-5109?

NSN 5961-01-143-5109 is a Transistor, manufactured by Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M, classified under FSC 5961 (No Item Name Available). Status: active.

What are the part numbers for NSN 5961-01-143-5109?

NSN 5961-01-143-5109 has 5 cross-referenced part numbers: MIL-PRF-19500/512 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 04ES025-1 (Raytheon Co ESD Long Island Div), MIL-S-19500/512 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), JANTX2N4029 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 10133315 (Nimikkeistokeskus Ncb Finland).

What NSN replaces 5961-01-143-5109?

There are 6 known substitutes for 5961-01-143-5109: 5961-01-047-9231, 5961-01-067-7294, 5961-01-165-2733 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of MIL-PRF-19500/512?

Key specifications for MIL-PRF-19500/512: Electrode Internally-Electrically Connected to Case: COLLECTOR; Voltage Rating in Volts Per Characteristic: -80.0 MAXIMUM COLLECTOR TO BASE VOLTAGE/STATIC/EMITTER OPEN AND -80.0 MAXIMUM COLLECTOR TO EMITTER VOLTAGE/STATIC/BASE OPEN AND -5.0 MAXIMUM EMITTER TO BASE VOLTAGE, STATIC, COLLECTOR OPEN; Power Rating Per Characteristic: 0.5 WATTS MAXIMUM TOTAL POWER DISSIPATION; Test Data Document: 81349-MIL-S-19500 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.).. 19 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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