PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MIL-S-19500/277Transistor

Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M · NSN 5961-00-914-7857 · FSC 5961 · No Item Name Available
Verified by PartsTable
NSN 5961-00-914-7857 — this item is cataloged by the U.S. Government under National Stock Number 5961-00-914-7857. Primary manufacturer part number: MIL-S-19500/277.
Features
  • Transistor — FSC 5961
  • Thread Series Designator: UNF
  • Mounting Method: THREADED STUD(S)
  • Voltage Rating in Volts Per Characteristic: 150.0 MAXIMUM COLLECTOR TO BASE VOLTAGE/STATIC/EMITTER OPEN AND 100.0 MAXIMUM COLLECTOR TO EMITTER VOLTAGE/STATIC/BASE OPEN AND 8.0 MAXIMUM EMITTER TO BASE VOLTAGE, STATIC, COLLECTOR OPEN
  • Nominal Thread Size: 0.190 INCHES IN
  • Current Rating Per Characteristic: 2.00 AMPERES MAXIMUM BASE CURRENT, DC AND 2.00 AMPERES MAXIMUM COLLECTOR CURRENT, DC AND 2.00 AMPERES MAXIMUM EMITTER CURRENT, DC
  • Maximum Operating Temp Per Measurement Point: 175.0 CELSIUS CASE DEGC
  • Features Provided: HERMETICALLY SEALED CASE
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transistor, cataloged under National Stock Number 5961-00-914-7857, 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 3 commercial cross-references from 1 manufacturer, 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
NSN5961-00-914-7857
Primary Part NumberMIL-S-19500/277
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
Thread Series DesignatorUNF
Mounting MethodTHREADED STUD(S)
Voltage Rating in Volts Per Characteristic150.0 MAXIMUM COLLECTOR TO BASE VOLTAGE/STATIC/EMITTER OPEN AND 100.0 MAXIMUM COLLECTOR TO EMITTER VOLTAGE/STATIC/BASE OPEN AND 8.0 MAXIMUM EMITTER TO BASE VOLTAGE, STATIC, COLLECTOR OPEN
Nominal Thread Size0.190 INCHES IN
Current Rating Per Characteristic2.00 AMPERES MAXIMUM BASE CURRENT, DC AND 2.00 AMPERES MAXIMUM COLLECTOR CURRENT, DC AND 2.00 AMPERES MAXIMUM EMITTER CURRENT, DC
Maximum Operating Temp Per Measurement Point175.0 CELSIUS CASE DEGC
Features ProvidedHERMETICALLY SEALED CASE
Specification/standard Data81349-MIL-S-19500/277 GOVERNMENT SPECIFICATION
Mounting Facility Quantity1
Electrode Internally-Electrically Connected to CaseCOLLECTOR
Semiconductor MaterialSILICON
Power Rating Per Characteristic30.0 WATTS MAXIMUM TOTAL POWER DISSIPATION
Internal ConfigurationJUNCTION CONTACT
Overall Width Across Flats0.424 INCHES MINIMUM AND 0.437 INCHES MAXIMUM IN
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.).
Terminal Type and Quantity3 TAB, SOLDER LUG
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
5961-00-627-02742N2151 INTERCHANGEABLE
Transistor
Crystalonics, Inc.
5961-00-923-3951 INTERCHANGEABLE
Transistor
Cross-Reference Index
Part NumberManufacturer
MIL-S-19500/277 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
JAN2N2150 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
2N2150 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
Related Parts
5961-00-627-0274INTERCHANGEABLE
TRANSISTOR
2N2151
5961-00-923-3951INTERCHANGEABLE
TRANSISTOR

Frequently Asked Questions

What is NSN 5961-00-914-7857?

NSN 5961-00-914-7857 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 5961-00-914-7857?

NSN 5961-00-914-7857 has 3 cross-referenced part numbers: MIL-S-19500/277 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), JAN2N2150 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 2N2150 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M).

What NSN replaces 5961-00-914-7857?

There are 2 known substitutes for 5961-00-914-7857: 5961-00-627-0274, 5961-00-923-3951. Verify interchangeability with system specifications before substitution.

What are the specifications of MIL-S-19500/277?

Key specifications for MIL-S-19500/277: Thread Series Designator: UNF; Mounting Method: THREADED STUD(S); Voltage Rating in Volts Per Characteristic: 150.0 MAXIMUM COLLECTOR TO BASE VOLTAGE/STATIC/EMITTER OPEN AND 100.0 MAXIMUM COLLECTOR TO EMITTER VOLTAGE/STATIC/BASE OPEN AND 8.0 MAXIMUM EMITTER TO BASE VOLTAGE, STATIC, COLLECTOR OPEN; Nominal Thread Size: 0.190 INCHES IN. 18 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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