PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MILS19500-251Transistor

Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M · NSN 5961-01-023-3439 · FSC 5961 · No Item Name Available
Verified by PartsTable
NSN 5961-01-023-3439 — this item is cataloged by the U.S. Government under National Stock Number 5961-01-023-3439. Primary manufacturer part number: MILS19500-251.
Features
  • Transistor — FSC 5961
  • Overall Diameter: 0.335 INCHES MINIMUM AND 0.370 INCHES MAXIMUM IN
  • Terminal Circle Diameter: 0.200 INCHES NOMINAL 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
  • Features Provided: HERMETICALLY SEALED CASE
  • Power Rating Per Characteristic: 800.0 MILLIWATTS MAXIMUM TOTAL POWER DISSIPATION
  • Current Rating Per Characteristic: 800.00 MILLIAMPERES MAXIMUM COLLECTOR CURRENT, DC
  • Terminal Length: 1.500 INCHES MINIMUM AND 1.750 INCHES MAXIMUM IN
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transistor, cataloged under National Stock Number 5961-01-023-3439, 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 13 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 13 commercial cross-references from 9 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
NSN5961-01-023-3439
Primary Part NumberMILS19500-251
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
Overall Diameter0.335 INCHES MINIMUM AND 0.370 INCHES MAXIMUM IN
Terminal Circle Diameter0.200 INCHES NOMINAL 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
Features ProvidedHERMETICALLY SEALED CASE
Power Rating Per Characteristic800.0 MILLIWATTS MAXIMUM TOTAL POWER DISSIPATION
Current Rating Per Characteristic800.00 MILLIAMPERES MAXIMUM COLLECTOR CURRENT, DC
Terminal Length1.500 INCHES MINIMUM AND 1.750 INCHES MAXIMUM IN
Mounting MethodTERMINAL
Semiconductor MaterialSILICON
Electrode Internally-Electrically Connected to CaseCOLLECTOR
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 UNINSULATED WIRE LEAD
Specification/standard Data81349-MIL-S-19500/251 GOVERNMENT SPECIFICATION
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
5961-00-022-4386 INTERCHANGEABLE
Transistor
5961-00-050-7499 INTERCHANGEABLE
Transistor
5961-00-059-4464 INTERCHANGEABLE
Transistor
5961-00-406-3074 INTERCHANGEABLE
Transistor
5961-00-436-8797 INTERCHANGEABLE
Transistor
5961-00-450-6343 INTERCHANGEABLE
Transistor
5961-00-457-9158 INTERCHANGEABLE
Transistor
5961-00-926-2533 INTERCHANGEABLE
Transistor
5961-00-949-1432 INTERCHANGEABLE
Transistor
5961-01-179-3469 INTERCHANGEABLE
Transistor
Cross-Reference Index
Part NumberManufacturer
MILS19500-251 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
JANTXV2N2219A Fairchild Semiconductor Corp Components Group Sub of Schlumberger Ltd (USA)
JANTXV2N2219A Joint Army-Navy Specifications Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
JANTXV2N2219 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
JANTXV2N2219A Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
JANTXV2N2219A Freescale Semiconductor, Inc. (USA)
JV2N2219AL Microsemi Corp - Massachusetts (USA)
NH13-1330452-1 Dla Land and Maritime Dba Engineering and Technical Support Div Document Standardization Division (vendor Item Drawings) (USA)
MIL-PRF-19500/251 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
JANTXV2N2219AL Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
G492096-630 Raytheon Company Div Corp (USA)
10133145 Nimikkeistokeskus Ncb Finland (FIN)
13-1330452-1 General Dynamics Mission Systems, Inc. (USA)
Related Parts
5961-00-022-4386INTERCHANGEABLE
TRANSISTOR
5961-00-050-7499INTERCHANGEABLE
TRANSISTOR
5961-00-059-4464INTERCHANGEABLE
TRANSISTOR
5961-00-406-3074INTERCHANGEABLE
TRANSISTOR
5961-00-436-8797INTERCHANGEABLE
TRANSISTOR
5961-00-450-6343INTERCHANGEABLE
TRANSISTOR
5961-00-457-9158INTERCHANGEABLE
TRANSISTOR
5961-00-926-2533INTERCHANGEABLE
TRANSISTOR
5961-00-949-1432INTERCHANGEABLE
TRANSISTOR
5961-01-179-3469INTERCHANGEABLE
TRANSISTOR
5961-01-179-3470INTERCHANGEABLE
TRANSISTOR
5961-01-214-0848INTERCHANGEABLE
TRANSISTOR

Frequently Asked Questions

What is NSN 5961-01-023-3439?

NSN 5961-01-023-3439 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 5961-01-023-3439?

NSN 5961-01-023-3439 has 13 cross-referenced part numbers: MILS19500-251 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), JANTXV2N2219A (Fairchild Semiconductor Corp Components Group Sub of Schlumberger Ltd), JANTXV2N2219A (Joint Army-Navy Specifications Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), JANTXV2N2219 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), JANTXV2N2219A (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M) and 8 more.

What NSN replaces 5961-01-023-3439?

There are 12 known substitutes for 5961-01-023-3439: 5961-00-022-4386, 5961-00-050-7499, 5961-00-059-4464 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of MILS19500-251?

Key specifications for MILS19500-251: Overall Diameter: 0.335 INCHES MINIMUM AND 0.370 INCHES MAXIMUM IN; Terminal Circle Diameter: 0.200 INCHES NOMINAL IN; Overall Length: 0.240 INCHES MINIMUM AND 0.260 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. 14 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5961-01-023-3439 still in active supply?

NSN 5961-01-023-3439 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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