PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

2N4391-2Transistor

Siliconix Incorporated Div Siliconix · NSN 5961-01-174-1219 · FSC 5961 · No Item Name Available
Verified by PartsTable
NSN 5961-01-174-1219 — this item is cataloged by the U.S. Government under National Stock Number 5961-01-174-1219. Primary manufacturer part number: 2N4391-2.
Features
  • Transistor — FSC 5961
  • Voltage Rating in Volts Per Characteristic: -50.0 MAXIMUM GATE TO SOURCE VOLTAGE
  • Precious Material and Location: TERMINALS GOLD
  • Internal Configuration: FIELD EFFECT
  • Features Provided: HERMETICALLY SEALED CASE
  • Maximum Operating Temp Per Measurement Point: 175.0 CELSIUS AMBIENT AIR DEGC
  • Current Rating Per Characteristic: 50.00 MILLIAMPERES MAXIMUM GATE CURRENT
  • 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 5961-01-174-1219, 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 15 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 7 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5961-01-174-1219
Primary Part Number2N4391-2
Item NameTransistor
FSC / FSG5961 / 59 — No Item Name Available
ManufacturerSiliconix Incorporated Div Siliconix
StatusCANCELLED
Voltage Rating in Volts Per Characteristic-50.0 MAXIMUM GATE TO SOURCE VOLTAGE
Precious Material and LocationTERMINALS GOLD
Internal ConfigurationFIELD EFFECT
Features ProvidedHERMETICALLY SEALED CASE
Maximum Operating Temp Per Measurement Point175.0 CELSIUS AMBIENT AIR DEGC
Current Rating Per Characteristic50.00 MILLIAMPERES MAXIMUM GATE CURRENT
Semiconductor MaterialSILICON
Terminal Type and Quantity3 UNINSULATED WIRE LEAD
Terminal Circle Diameter0.100 INCHES NOMINAL IN
Precious MaterialGOLD
Mounting MethodTERMINAL
Power Rating Per Characteristic300.0 MILLIWATTS MAXIMUM TOTAL POWER DISSIPATION
Overall Diameter0.230 INCHES MAXIMUM IN
Joint Electronic Device Engineering Council/jedec/case Outline DesignationTO-18
Terminal Length0.500 INCHES MINIMUM IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 3
5961-00-110-9356 INTERCHANGEABLE
Transistor
5961-00-227-40792N4391 INTERCHANGEABLE
Transistor
Siliconix Incorporated Div Siliconix
5961-01-487-8616 INTERCHANGEABLE
Transistor
Cross-Reference Index
Part NumberManufacturer
67C700018-1 Mrl Inc (USA)
2N4391-2 PRIMARY Siliconix Incorporated Div Siliconix (USA)
2N4391/750 Siliconix Incorporated Div Siliconix (USA)
863-005-005 Parker-Hannifin Corporation Dba Pneutronics Div Fluid Systems Division (USA)
863-005-005 Parker-Hannifin Corporation Dba Service and Support Operation Div Services and Support Operations (USA)
2N4391 Siliconix Incorporated Div Siliconix (USA)
2N4391 Solitron Devices, Inc. (USA)
Related Parts
5961-00-110-9356INTERCHANGEABLE
TRANSISTOR
5961-00-227-4079INTERCHANGEABLE
TRANSISTOR
2N4391
5961-01-487-8616INTERCHANGEABLE
TRANSISTOR

Frequently Asked Questions

What is NSN 5961-01-174-1219?

NSN 5961-01-174-1219 is a Transistor, manufactured by Siliconix Incorporated Div Siliconix, classified under FSC 5961 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5961-01-174-1219?

NSN 5961-01-174-1219 has 7 cross-referenced part numbers: 67C700018-1 (Mrl Inc), 2N4391-2 (Siliconix Incorporated Div Siliconix), 2N4391/750 (Siliconix Incorporated Div Siliconix), 863-005-005 (Parker-Hannifin Corporation Dba Pneutronics Div Fluid Systems Division), 863-005-005 (Parker-Hannifin Corporation Dba Service and Support Operation Div Services and Support Operations) and 2 more.

What NSN replaces 5961-01-174-1219?

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

What are the specifications of 2N4391-2?

Key specifications for 2N4391-2: Voltage Rating in Volts Per Characteristic: -50.0 MAXIMUM GATE TO SOURCE VOLTAGE; Precious Material and Location: TERMINALS GOLD; Overall Length: 0.210 INCHES MAXIMUM IN; Internal Configuration: FIELD EFFECT. 16 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5961-01-174-1219 still in active supply?

NSN 5961-01-174-1219 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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