PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MIL-PRF-19500/291Transistor

Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M · NSN 5961-01-235-7785 · FSC 5961 · No Item Name Available
Verified by PartsTable
NSN 5961-01-235-7785 — this item is cataloged by the U.S. Government under National Stock Number 5961-01-235-7785. Primary manufacturer part number: MIL-PRF-19500/291.
Features
  • Transistor — FSC 5961
  • Current Rating Per Characteristic: 600.00 MILLIAMPERES MAXIMUM COLLECTOR CURRENT, DC
  • Test Data Document: 81349-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.).
  • Specification/standard Data: 81349-MIL-PRF-19500/291 GOVERNMENT SPECIFICATION
  • Terminal Length: 0.500 INCHES MINIMUM IN
  • Mounting Method: TERMINAL
  • Transfer Ratio: 300.0 MAXIMUM STATIC FORWARD CURRENT TRANSFER RATIO, COMMON-EMITTER
  • Power Rating Per Characteristic: 1.8 WATTS MAXIMUM TOTAL POWER DISSIPATION
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transistor, cataloged under National Stock Number 5961-01-235-7785, 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 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5961-01-235-7785
Primary Part NumberMIL-PRF-19500/291
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
Current Rating Per Characteristic600.00 MILLIAMPERES MAXIMUM COLLECTOR CURRENT, DC
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.).
Specification/standard Data81349-MIL-PRF-19500/291 GOVERNMENT SPECIFICATION
Terminal Length0.500 INCHES MINIMUM IN
Mounting MethodTERMINAL
Transfer Ratio300.0 MAXIMUM STATIC FORWARD CURRENT TRANSFER RATIO, COMMON-EMITTER
Power Rating Per Characteristic1.8 WATTS MAXIMUM TOTAL POWER DISSIPATION
Features ProvidedHERMETICALLY SEALED CASE AND QUALITY ASSURANCE LEVEL S
Semiconductor MaterialSILICON
Joint Electronic Device Engineering Council/jedec/case Outline DesignationTO-18
Terminal Circle Diameter0.100 INCHES NOMINAL IN
Terminal Type and Quantity3 UNINSULATED WIRE LEAD
Electrode Internally-Electrically Connected to CaseCOLLECTOR
Voltage Rating in Volts Per Characteristic-60.0 MAXIMUM COLLECTOR TO BASE VOLTAGE/STATIC/EMITTER OPEN AND -60.0 MAXIMUM COLLECTOR TO EMITTER VOLTAGE/STATIC/BASE OPEN AND -5.0 MAXIMUM EMITTER TO BASE VOLTAGE, STATIC, COLLECTOR OPEN
Internal ConfigurationJUNCTION CONTACT
Overall Diameter0.230 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 10
5961-00-022-5666 INTERCHANGEABLE
Transistor
5961-00-081-9938 INTERCHANGEABLE
Transistor
5961-00-460-1034 INTERCHANGEABLE
Transistor
5961-00-925-3777 INTERCHANGEABLE
Transistor
5961-00-946-2023 INTERCHANGEABLE
Transistor
5961-01-019-4947 INTERCHANGEABLE
Transistor
5961-01-135-7585 INTERCHANGEABLE
Transistor
5961-01-346-7578 INTERCHANGEABLE
Transistor
5961-01-406-5929 INTERCHANGEABLE
Transistor
5961-01-436-0045 INTERCHANGEABLE
Transistor
Cross-Reference Index
Part NumberManufacturer
MIL-PRF-19500/291 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
JANS2N2907A Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
Related Parts
5961-00-022-5666INTERCHANGEABLE
TRANSISTOR
5961-00-081-9938INTERCHANGEABLE
TRANSISTOR
5961-00-460-1034INTERCHANGEABLE
TRANSISTOR
5961-00-925-3777INTERCHANGEABLE
TRANSISTOR
5961-00-946-2023INTERCHANGEABLE
TRANSISTOR
5961-01-019-4947INTERCHANGEABLE
TRANSISTOR
5961-01-135-7585INTERCHANGEABLE
TRANSISTOR
5961-01-346-7578INTERCHANGEABLE
TRANSISTOR
5961-01-406-5929INTERCHANGEABLE
TRANSISTOR
5961-01-436-0045INTERCHANGEABLE
TRANSISTOR

Frequently Asked Questions

What is NSN 5961-01-235-7785?

NSN 5961-01-235-7785 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 5961-01-235-7785?

NSN 5961-01-235-7785 has 2 cross-referenced part numbers: MIL-PRF-19500/291 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), JANS2N2907A (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M).

What NSN replaces 5961-01-235-7785?

There are 10 known substitutes for 5961-01-235-7785: 5961-00-022-5666, 5961-00-081-9938, 5961-00-460-1034 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of MIL-PRF-19500/291?

Key specifications for MIL-PRF-19500/291: Current Rating Per Characteristic: 600.00 MILLIAMPERES MAXIMUM COLLECTOR CURRENT, DC; Test Data Document: 81349-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.).; Specification/standard Data: 81349-MIL-PRF-19500/291 GOVERNMENT SPECIFICATION; Terminal Length: 0.500 INCHES MINIMUM 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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