PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MIL-PRF-19500/181Transistor

Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M · NSN 5961-01-175-8443 · FSC 5961 · No Item Name Available
Verified by PartsTable
NSN 5961-01-175-8443 — this item is cataloged by the U.S. Government under National Stock Number 5961-01-175-8443. Primary manufacturer part number: MIL-PRF-19500/181.
Features
  • Transistor — FSC 5961
  • Electrode Internally-Electrically Connected to Case: COLLECTOR
  • Current Rating Per Characteristic: 500.00 MILLIAMPERES MAXIMUM COLLECTOR CURRENT, DC
  • Transfer Ratio: 120.0 MAXIMUM STATIC FORWARD CURRENT TRANSFER RATIO, COMMON-EMITTER
  • Power Rating Per Characteristic: 3.0 WATTS MAXIMUM TOTAL POWER DISSIPATION
  • Joint Electronic Device Engineering Council/jedec/case Outline Designation: TO-5
  • Terminal Circle Diameter: 0.200 INCHES NOMINAL IN
  • Mounting Method: TERMINAL
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transistor, cataloged under National Stock Number 5961-01-175-8443, 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 7 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5961-01-175-8443
Primary Part NumberMIL-PRF-19500/181
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
Electrode Internally-Electrically Connected to CaseCOLLECTOR
Current Rating Per Characteristic500.00 MILLIAMPERES MAXIMUM COLLECTOR CURRENT, DC
Transfer Ratio120.0 MAXIMUM STATIC FORWARD CURRENT TRANSFER RATIO, COMMON-EMITTER
Power Rating Per Characteristic3.0 WATTS MAXIMUM TOTAL POWER DISSIPATION
Joint Electronic Device Engineering Council/jedec/case Outline DesignationTO-5
Terminal Circle Diameter0.200 INCHES NOMINAL IN
Mounting MethodTERMINAL
Maximum Operating Temp Per Measurement Point175.0 CELSIUS JUNCTION DEGC
Specification/standard Data81349-MIL-PRF-19500/181 GOVERNMENT SPECIFICATION
Terminal Length1.500 INCHES MINIMUM IN
Overall Diameter0.370 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, RESISTANCE BETWEEN BASE AND EMITTER AND 30.0 MAXIMUM COLLECTOR TO EMITTER VOLTAGE/STATIC/BASE OPEN AND 7.0 MAXIMUM EMITTER TO BASE VOLTAGE, STATIC, COLLECTOR OPEN
Terminal Type and Quantity3 UNINSULATED WIRE LEAD
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.).
Internal ConfigurationJUNCTION CONTACT
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 9
5961-00-025-5899L00885 INTERCHANGEABLE
Transistor
Dla Land and Maritime Dba Engineering and Technical Support Div Document Standardization Division (vendor Item Drawings)
5961-00-057-4959382955-1 INTERCHANGEABLE
Semiconductor Device Set
Aerojet Rocketdyne Inc
5961-00-254-2992 INTERCHANGEABLE
Transistor
5961-00-490-2963 INTERCHANGEABLE
Transistor
5961-00-787-5305 INTERCHANGEABLE
Transistor
5961-00-813-9360 INTERCHANGEABLE
Transistor
5961-00-924-4666 INTERCHANGEABLE
Transistor
5961-01-022-6850 INTERCHANGEABLE
Transistor
5961-01-175-8444 INTERCHANGEABLE
Transistor
Cross-Reference Index
Part NumberManufacturer
MIL-PRF-19500/181 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
JAN2N1613 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
FS696A Fairchild Semiconductor Corp (USA)
MS696A Power Designs Inc (USA)
FS696 Fairchild Semiconductor Corp (USA)
JANTXV2N1613L Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
5961PL0190541 Jednolity Indeks Materialowy - Uniform Material Index (POL)
Related Parts
5961-00-025-5899INTERCHANGEABLE
TRANSISTOR
L00885
5961-00-057-4959INTERCHANGEABLE
SEMICONDUCTOR DEVICE SET
382955-1
5961-00-254-2992INTERCHANGEABLE
TRANSISTOR
5961-00-490-2963INTERCHANGEABLE
TRANSISTOR
5961-00-787-5305INTERCHANGEABLE
TRANSISTOR
5961-00-813-9360INTERCHANGEABLE
TRANSISTOR
5961-00-924-4666INTERCHANGEABLE
TRANSISTOR
5961-01-022-6850INTERCHANGEABLE
TRANSISTOR
5961-01-175-8444INTERCHANGEABLE
TRANSISTOR

Frequently Asked Questions

What is NSN 5961-01-175-8443?

NSN 5961-01-175-8443 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 5961-01-175-8443?

NSN 5961-01-175-8443 has 7 cross-referenced part numbers: MIL-PRF-19500/181 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), JAN2N1613 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), FS696A (Fairchild Semiconductor Corp), MS696A (Power Designs Inc), FS696 (Fairchild Semiconductor Corp) and 2 more.

What NSN replaces 5961-01-175-8443?

There are 9 known substitutes for 5961-01-175-8443: 5961-00-025-5899, 5961-00-057-4959, 5961-00-254-2992 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of MIL-PRF-19500/181?

Key specifications for MIL-PRF-19500/181: Electrode Internally-Electrically Connected to Case: COLLECTOR; Current Rating Per Characteristic: 500.00 MILLIAMPERES MAXIMUM COLLECTOR CURRENT, DC; Transfer Ratio: 120.0 MAXIMUM STATIC FORWARD CURRENT TRANSFER RATIO, COMMON-EMITTER; Power Rating Per Characteristic: 3.0 WATTS MAXIMUM TOTAL POWER DISSIPATION. 18 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5961-01-175-8443 still in active supply?

NSN 5961-01-175-8443 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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