PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MIL-PRF-19500/518Transistor

Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M · NSN 5961-01-237-1489 · FSC 5961 · No Item Name Available
Verified by PartsTable
NSN 5961-01-237-1489 — this item is cataloged by the U.S. Government under National Stock Number 5961-01-237-1489. Primary manufacturer part number: MIL-PRF-19500/518.
Features
  • Transistor — FSC 5961
  • Maximum Operating Temp Per Measurement Point: 200.0 CELSIUS AMBIENT AIR DEGC
  • Power Rating Per Characteristic: 25.0 WATTS MAXIMUM TOTAL POWER DISSIPATION
  • Joint Electronic Device Engineering Council/jedec/case Outline Designation: TO-66
  • Current Rating Per Characteristic: 2.00 AMPERES MAXIMUM BASE CURRENT, DC AND 4.00 AMPERES MAXIMUM COLLECTOR CURRENT, DC
  • Voltage Rating in Volts Per Characteristic: 100.0 MAXIMUM COLLECTOR TO BASE VOLTAGE/STATIC/EMITTER OPEN AND 80.0 MAXIMUM COLLECTOR TO EMITTER VOLTAGE/STATIC/BASE OPEN AND 6.0 MAXIMUM EMITTER TO BASE VOLTAGE, STATIC, COLLECTOR OPEN
  • Transfer Ratio: 160.0 MAXIMUM STATIC FORWARD CURRENT TRANSFER RATIO, COMMON-EMITTER
  • Mounting Facility Quantity: 2
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transistor, cataloged under National Stock Number 5961-01-237-1489, 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 14 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5961-01-237-1489
Primary Part NumberMIL-PRF-19500/518
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
Maximum Operating Temp Per Measurement Point200.0 CELSIUS AMBIENT AIR DEGC
Power Rating Per Characteristic25.0 WATTS MAXIMUM TOTAL POWER DISSIPATION
Joint Electronic Device Engineering Council/jedec/case Outline DesignationTO-66
Current Rating Per Characteristic2.00 AMPERES MAXIMUM BASE CURRENT, DC AND 4.00 AMPERES MAXIMUM COLLECTOR CURRENT, DC
Voltage Rating in Volts Per Characteristic100.0 MAXIMUM COLLECTOR TO BASE VOLTAGE/STATIC/EMITTER OPEN AND 80.0 MAXIMUM COLLECTOR TO EMITTER VOLTAGE/STATIC/BASE OPEN AND 6.0 MAXIMUM EMITTER TO BASE VOLTAGE, STATIC, COLLECTOR OPEN
Transfer Ratio160.0 MAXIMUM STATIC FORWARD CURRENT TRANSFER RATIO, COMMON-EMITTER
Mounting Facility Quantity2
Mounting MethodUNTHREADED HOLE(S)
Features ProvidedHERMETICALLY SEALED CASE AND QUALITY ASSURANCE LEVEL TXV
Specification/standard Data81349-MIL-S-19500/518 GOVERNMENT SPECIFICATION
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.).
Electrode Internally-Electrically Connected to CaseCOLLECTOR
Semiconductor MaterialSILICON
Terminal Type and Quantity2 PIN AND 1 CASE
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 4
5961-01-069-9732 INTERCHANGEABLE
Transistor
5961-01-093-9468 INTERCHANGEABLE
Transistor
5961-01-094-0469 INTERCHANGEABLE
Transistor
5961-01-102-0439 INTERCHANGEABLE
Transistor
Cross-Reference Index
Part NumberManufacturer
MIL-PRF-19500/518 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
JANTXV2N3767 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MIL-S-19500/518 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
7909406-00 Lockheed Martin Corp Dba Lockheed Martin Div Mst - Eagan (USA)
Related Parts
5961-01-069-9732INTERCHANGEABLE
TRANSISTOR
5961-01-093-9468INTERCHANGEABLE
TRANSISTOR
5961-01-094-0469INTERCHANGEABLE
TRANSISTOR
5961-01-102-0439INTERCHANGEABLE
TRANSISTOR

Frequently Asked Questions

What is NSN 5961-01-237-1489?

NSN 5961-01-237-1489 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 5961-01-237-1489?

NSN 5961-01-237-1489 has 4 cross-referenced part numbers: MIL-PRF-19500/518 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), JANTXV2N3767 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), MIL-S-19500/518 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 7909406-00 (Lockheed Martin Corp Dba Lockheed Martin Div Mst - Eagan).

What NSN replaces 5961-01-237-1489?

There are 4 known substitutes for 5961-01-237-1489: 5961-01-069-9732, 5961-01-093-9468, 5961-01-094-0469 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of MIL-PRF-19500/518?

Key specifications for MIL-PRF-19500/518: Maximum Operating Temp Per Measurement Point: 200.0 CELSIUS AMBIENT AIR DEGC; Power Rating Per Characteristic: 25.0 WATTS MAXIMUM TOTAL POWER DISSIPATION; Overall Width: 0.700 INCHES MAXIMUM IN; Joint Electronic Device Engineering Council/jedec/case Outline Designation: TO-66. 17 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5961-01-237-1489 still in active supply?

NSN 5961-01-237-1489 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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