PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

SS20179-1-FRTransistor

Bae Systems · NSN 5961-00-448-5113 · FSC 5961 · No Item Name Available
Verified by PartsTable
NSN 5961-00-448-5113 — this item is cataloged by the U.S. Government under National Stock Number 5961-00-448-5113. Primary manufacturer part number: SS20179-1-FR.
Features
  • Transistor — FSC 5961
  • Voltage Rating in Volts Per Characteristic: 20.0 MAXIMUM DRAIN TO GATE VOLTAGE AND 20.0 MAXIMUM DRAIN TO SOURCE VOLTAGE AND -6.0 MAXIMUM REVERSE GATE TO SOURCE VOLTAGE
  • Terminal Type and Quantity: 4 UNINSULATED WIRE LEAD
  • Electrode Internally-Electrically Connected to Case: SOURCE
  • Internal Configuration: FIELD EFFECT-DUAL GATE
  • Terminal Length: 0.500 INCHES MINIMUM IN
  • Joint Electronic Device Engineering Council/jedec/case Outline Designation: TO-72
  • Current Rating Per Characteristic: 50.00 MILLIAMPERES MAXIMUM DRAIN CURRENT AND 1.00 MILLIAMPERES MAXIMUM GATE 1 CURRENT AND 1.00 MILLIAMPERES MAXIMUM GATE 2 CURRENT AND 1.00 MILLIAMPERES MAXIMUM REVERSE GATE CURRENT
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transistor, cataloged under National Stock Number 5961-00-448-5113, 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 Bae Systems. Government technical data includes 12 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 12 commercial cross-references from 10 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5961-00-448-5113
Primary Part NumberSS20179-1-FR
Item NameTransistor
FSC / FSG5961 / 59 — No Item Name Available
ManufacturerBae Systems
StatusCANCELLED
Voltage Rating in Volts Per Characteristic20.0 MAXIMUM DRAIN TO GATE VOLTAGE AND 20.0 MAXIMUM DRAIN TO SOURCE VOLTAGE AND -6.0 MAXIMUM REVERSE GATE TO SOURCE VOLTAGE
Terminal Type and Quantity4 UNINSULATED WIRE LEAD
Electrode Internally-Electrically Connected to CaseSOURCE
Internal ConfigurationFIELD EFFECT-DUAL GATE
Terminal Length0.500 INCHES MINIMUM IN
Joint Electronic Device Engineering Council/jedec/case Outline DesignationTO-72
Current Rating Per Characteristic50.00 MILLIAMPERES MAXIMUM DRAIN CURRENT AND 1.00 MILLIAMPERES MAXIMUM GATE 1 CURRENT AND 1.00 MILLIAMPERES MAXIMUM GATE 2 CURRENT AND 1.00 MILLIAMPERES MAXIMUM REVERSE GATE CURRENT
Specification/standard Data80131-RELEASE6201 PROFESSIONAL/INDUSTRIAL ASSOCIATION SPECIFICATION
Semiconductor MaterialSILICON
Overall Diameter0.209 INCHES MINIMUM AND 0.230 INCHES MAXIMUM IN
Power Rating Per Characteristic330.0 MILLIWATTS MAXIMUM TOTAL DEVICE DISSIPATION
Mounting MethodTERMINAL
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 2
5961-00-501-1013352-0997-012 INTERCHANGEABLE
Transistor
Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems
5961-01-078-2243841001-1 INTERCHANGEABLE
Transistor
Drs Signal Solutions, Inc.
Cross-Reference Index
Part NumberManufacturer
SS20179-1-FR Bae Systems (GBR)
3N187 Joint Electron Device Engineering Council
3N187 Electronic Industries Association
3N187 General Semiconductor Inc (USA)
3N187 Renesas Electronics America Inc (USA)
3N187 Lacon Electronic Gmbh (DEU)
3N187A Adelco Elektronik Gmbh (DEU)
RELEASE6201 Electronic Industries Association
3N187 Adelco Elektronik Gmbh (DEU)
352-1093-010 Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems (USA)
44597 28133 Thales Deutschland Gmbh Div Customer Services (DEU)
1855-0187 Br Communications (inc) (USA)
Related Parts
5961-00-501-1013INTERCHANGEABLE
TRANSISTOR
352-0997-012
5961-01-078-2243INTERCHANGEABLE
TRANSISTOR
841001-1

Frequently Asked Questions

What is NSN 5961-00-448-5113?

NSN 5961-00-448-5113 is a Transistor, manufactured by Bae Systems, classified under FSC 5961 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5961-00-448-5113?

NSN 5961-00-448-5113 has 12 cross-referenced part numbers: SS20179-1-FR (Bae Systems), 3N187 (Joint Electron Device Engineering Council), 3N187 (Electronic Industries Association), 3N187 (General Semiconductor Inc), 3N187 (Renesas Electronics America Inc) and 7 more.

What NSN replaces 5961-00-448-5113?

There are 2 known substitutes for 5961-00-448-5113: 5961-00-501-1013, 5961-01-078-2243. Verify interchangeability with system specifications before substitution.

What are the specifications of SS20179-1-FR?

Key specifications for SS20179-1-FR: Voltage Rating in Volts Per Characteristic: 20.0 MAXIMUM DRAIN TO GATE VOLTAGE AND 20.0 MAXIMUM DRAIN TO SOURCE VOLTAGE AND -6.0 MAXIMUM REVERSE GATE TO SOURCE VOLTAGE; Terminal Type and Quantity: 4 UNINSULATED WIRE LEAD; Electrode Internally-Electrically Connected to Case: SOURCE; Internal Configuration: FIELD EFFECT-DUAL GATE. 13 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5961-00-448-5113 still in active supply?

NSN 5961-00-448-5113 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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