PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

2N4391Transistor

Siliconix Incorporated Div Siliconix · NSN 5961-00-227-4079 · FSC 5961 · No Item Name Available
Verified by PartsTable
NSN 5961-00-227-4079 — this item is cataloged by the U.S. Government under National Stock Number 5961-00-227-4079. Primary manufacturer part number: 2N4391.
Features
  • Transistor — FSC 5961
  • Voltage Rating in Volts Per Characteristic: 20.0 MAXIMUM DRAIN TO SOURCE VOLTAGE AND 40.0 MAXIMUM GATE TO SOURCE VOLTAGE
  • Electrode Internally-Electrically Connected to Case: COLLECTOR
  • Overall Diameter: 0.230 INCHES MAXIMUM IN
  • Internal Configuration: FIELD EFFECT
  • Terminal Type and Quantity: 3 UNINSULATED WIRE LEAD
  • Features Provided: HERMETICALLY SEALED CASE
  • Semiconductor Material: SILICON
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transistor, cataloged under National Stock Number 5961-00-227-4079, 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 Siliconix Incorporated Div Siliconix. Government technical data includes 13 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 11 commercial cross-references from 9 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5961-00-227-4079
Primary Part Number2N4391
Item NameTransistor
FSC / FSG5961 / 59 — No Item Name Available
ManufacturerSiliconix Incorporated Div Siliconix
StatusACTIVE
Voltage Rating in Volts Per Characteristic20.0 MAXIMUM DRAIN TO SOURCE VOLTAGE AND 40.0 MAXIMUM GATE TO SOURCE VOLTAGE
Electrode Internally-Electrically Connected to CaseCOLLECTOR
Overall Diameter0.230 INCHES MAXIMUM IN
Internal ConfigurationFIELD EFFECT
Terminal Type and Quantity3 UNINSULATED WIRE LEAD
Features ProvidedHERMETICALLY SEALED CASE
Semiconductor MaterialSILICON
Power Rating Per Characteristic1.8 WATTS MAXIMUM TOTAL POWER DISSIPATION
Joint Electronic Device Engineering Council/jedec/case Outline DesignationTO-18
Current Rating Per Characteristic50.00 MILLIAMPERES MAXIMUM GATE CURRENT
Mounting MethodTERMINAL
Terminal Length0.500 INCHES MINIMUM IN
Terminal Circle Diameter0.100 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
5961-00-110-9356 INTERCHANGEABLE
Transistor
5961-01-174-12192N4391-2 INTERCHANGEABLE
Transistor
Siliconix Incorporated Div Siliconix
5961-01-487-8616 INTERCHANGEABLE
Transistor
Cross-Reference Index
Part NumberManufacturer
VF4391 Wayne Kerr Electronics Inc (USA)
430189-01 Bae Systems Controls Inc (USA)
40-666-731 Ge Aviation Systems Ltd (GBR)
2N4391 PRIMARY Siliconix Incorporated Div Siliconix (USA)
2N4391 Telcom Semiconductor Inc (USA)
2N4391 Freescale Semiconductor, Inc. (USA)
2N4391 PRIMARY Solitron Devices, Inc. (USA)
2N4391 Adelco Elektronik Gmbh (DEU)
2N4391A Adelco Elektronik Gmbh (DEU)
2N4391 Texas Instruments Incorporated (USA)
U222 Siliconix Incorporated Div Siliconix (USA)
Related Parts
5961-00-110-9356INTERCHANGEABLE
TRANSISTOR
5961-01-174-1219INTERCHANGEABLE
TRANSISTOR
2N4391-2
5961-01-487-8616INTERCHANGEABLE
TRANSISTOR

Frequently Asked Questions

What is NSN 5961-00-227-4079?

NSN 5961-00-227-4079 is a Transistor, manufactured by Siliconix Incorporated Div Siliconix, classified under FSC 5961 (No Item Name Available). Status: active.

What are the part numbers for NSN 5961-00-227-4079?

NSN 5961-00-227-4079 has 11 cross-referenced part numbers: VF4391 (Wayne Kerr Electronics Inc), 430189-01 (Bae Systems Controls Inc), 40-666-731 (Ge Aviation Systems Ltd), 2N4391 (Siliconix Incorporated Div Siliconix), 2N4391 (Telcom Semiconductor Inc) and 6 more.

What NSN replaces 5961-00-227-4079?

There are 3 known substitutes for 5961-00-227-4079: 5961-00-110-9356, 5961-01-174-1219, 5961-01-487-8616. Verify interchangeability with system specifications before substitution.

What are the specifications of 2N4391?

Key specifications for 2N4391: Voltage Rating in Volts Per Characteristic: 20.0 MAXIMUM DRAIN TO SOURCE VOLTAGE AND 40.0 MAXIMUM GATE TO SOURCE VOLTAGE; Electrode Internally-Electrically Connected to Case: COLLECTOR; Overall Diameter: 0.230 INCHES MAXIMUM IN; Internal Configuration: FIELD EFFECT. 14 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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