PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MIL-PRF-19500/255Transistor

Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M · NSN 5961-00-951-8756 · FSC 5961 · No Item Name Available
Verified by PartsTable
NSN 5961-00-951-8756 — this item is cataloged by the U.S. Government under National Stock Number 5961-00-951-8756. Primary manufacturer part number: MIL-PRF-19500/255.
Features
  • Transistor — FSC 5961
  • Mounting Method: TERMINAL
  • Maximum Operating Temp Per Measurement Point: 200.0 CELSIUS JUNCTION DEGC
  • Overall Diameter: 0.209 INCHES MINIMUM AND 0.230 INCHES MAXIMUM IN
  • Voltage Rating in Volts Per Characteristic: 75.0 MAXIMUM COLLECTOR TO BASE VOLTAGE/STATIC/EMITTER OPEN AND 50.0 MAXIMUM COLLECTOR TO EMITTER VOLTAGE/STATIC/BASE OPEN AND 6.0 MAXIMUM EMITTER TO BASE VOLTAGE, STATIC, COLLECTOR OPEN
  • Terminal Length: 0.500 INCHES MINIMUM IN
  • Specification/standard Data: 81349-MIL-PRF-19500/255 GOVERNMENT SPECIFICATION
  • Terminal Type and Quantity: 3 UNINSULATED WIRE LEAD
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transistor, cataloged under National Stock Number 5961-00-951-8756, 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 15 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 9 commercial cross-references from 7 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5961-00-951-8756
Primary Part NumberMIL-PRF-19500/255
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
StatusCANCELLED
Mounting MethodTERMINAL
Maximum Operating Temp Per Measurement Point200.0 CELSIUS JUNCTION DEGC
Overall Diameter0.209 INCHES MINIMUM AND 0.230 INCHES MAXIMUM IN
Voltage Rating in Volts Per Characteristic75.0 MAXIMUM COLLECTOR TO BASE VOLTAGE/STATIC/EMITTER OPEN AND 50.0 MAXIMUM COLLECTOR TO EMITTER VOLTAGE/STATIC/BASE OPEN AND 6.0 MAXIMUM EMITTER TO BASE VOLTAGE, STATIC, COLLECTOR OPEN
Terminal Length0.500 INCHES MINIMUM IN
Specification/standard Data81349-MIL-PRF-19500/255 GOVERNMENT SPECIFICATION
Terminal Type and Quantity3 UNINSULATED WIRE LEAD
Internal ConfigurationJUNCTION CONTACT
Current Rating Per Characteristic800.00 MILLIAMPERES MAXIMUM COLLECTOR CURRENT, DC
Electrode Internally-Electrically Connected to CaseCOLLECTOR
Semiconductor MaterialSILICON
Test Data Document81349-MIL-PRF-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.).
Power Rating Per Characteristic1.8 WATTS MAXIMUM TOTAL POWER DISSIPATION
Terminal Circle Diameter0.100 INCHES NOMINAL IN
Features ProvidedHERMETICALLY SEALED CASE
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
5961-00-226-8583 INTERCHANGEABLE
Transistor
5961-00-226-8584 INTERCHANGEABLE
Transistor
5961-00-828-2559 INTERCHANGEABLE
Transistor
5961-00-858-3826 INTERCHANGEABLE
Transistor
5961-00-951-8757 INTERCHANGEABLE
Transistor
5961-01-005-9891 INTERCHANGEABLE
Transistor
5961-01-083-2461 INTERCHANGEABLE
Transistor
5961-01-235-7784 INTERCHANGEABLE
Transistor
5961-01-305-1528 INTERCHANGEABLE
Transistor
5961-01-310-9718 INTERCHANGEABLE
Transistor
Cross-Reference Index
Part NumberManufacturer
MIL-PRF-19500/255 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
ECG 108 General Dynamics Mission Systems, Inc. (USA)
JAN2N2221 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
352-7500-730 Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems (USA)
5961PL1387302 Jednolity Indeks Materialowy - Uniform Material Index (POL)
JAN2N2221A Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
5961009518756 E.c.a Etablissement Centrald'approvisionnement Des Forces Armee
HEP56 Freescale Semiconductor, Inc. (USA)
JAN2N2221AA Adelco Elektronik Gmbh (DEU)
Related Parts
5961-00-226-8583INTERCHANGEABLE
TRANSISTOR
5961-00-226-8584INTERCHANGEABLE
TRANSISTOR
5961-00-828-2559INTERCHANGEABLE
TRANSISTOR
5961-00-858-3826INTERCHANGEABLE
TRANSISTOR
5961-00-951-8757INTERCHANGEABLE
TRANSISTOR
5961-01-005-9891INTERCHANGEABLE
TRANSISTOR
5961-01-083-2461INTERCHANGEABLE
TRANSISTOR
5961-01-235-7784INTERCHANGEABLE
TRANSISTOR
5961-01-305-1528INTERCHANGEABLE
TRANSISTOR
5961-01-310-9718INTERCHANGEABLE
TRANSISTOR
5961-01-428-2169INTERCHANGEABLE
TRANSISTOR
5961-01-436-0048INTERCHANGEABLE
TRANSISTOR

Frequently Asked Questions

What is NSN 5961-00-951-8756?

NSN 5961-00-951-8756 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: cancelled.

What are the part numbers for NSN 5961-00-951-8756?

NSN 5961-00-951-8756 has 9 cross-referenced part numbers: MIL-PRF-19500/255 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), ECG 108 (General Dynamics Mission Systems, Inc.), JAN2N2221 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 352-7500-730 (Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems), 5961PL1387302 (Jednolity Indeks Materialowy - Uniform Material Index) and 4 more.

What NSN replaces 5961-00-951-8756?

There are 12 known substitutes for 5961-00-951-8756: 5961-00-226-8583, 5961-00-226-8584, 5961-00-828-2559 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of MIL-PRF-19500/255?

Key specifications for MIL-PRF-19500/255: Mounting Method: TERMINAL; Maximum Operating Temp Per Measurement Point: 200.0 CELSIUS JUNCTION DEGC; Overall Diameter: 0.209 INCHES MINIMUM AND 0.230 INCHES MAXIMUM IN; Voltage Rating in Volts Per Characteristic: 75.0 MAXIMUM COLLECTOR TO BASE VOLTAGE/STATIC/EMITTER OPEN AND 50.0 MAXIMUM COLLECTOR TO EMITTER VOLTAGE/STATIC/BASE OPEN AND 6.0 MAXIMUM EMITTER TO BASE VOLTAGE, STATIC, COLLECTOR OPEN. 17 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5961-00-951-8756 still in active supply?

NSN 5961-00-951-8756 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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