PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

2N3971ATransistor

Adelco Elektronik Gmbh · NSN 5961-00-126-7230 · FSC 5961 · No Item Name Available
Verified by PartsTable
NSN 5961-00-126-7230 — this item is cataloged by the U.S. Government under National Stock Number 5961-00-126-7230. Primary manufacturer part number: 2N3971A.
Features
  • Transistor — FSC 5961
  • Mounting Method: TERMINAL
  • Terminal Type and Quantity: 3 UNINSULATED WIRE LEAD
  • Joint Electronic Device Engineering Council/jedec/case Outline Designation: TO-18
  • Power Rating Per Characteristic: 1.8 WATTS MAXIMUM TOTAL DEVICE DISSIPATION
  • Features Provided: HERMETICALLY SEALED CASE
  • Voltage Rating in Volts Per Characteristic: 40.0 MAXIMUM DRAIN TO GATE VOLTAGE AND 40.0 MAXIMUM DRAIN TO SOURCE VOLTAGE AND 40.0 MAXIMUM REVERSE GATE TO SOURCE VOLTAGE
  • Internal Configuration: FIELD EFFECT
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transistor, cataloged under National Stock Number 5961-00-126-7230, 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 Adelco Elektronik Gmbh. Government technical data includes 13 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 15 commercial cross-references from 13 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5961-00-126-7230
Primary Part Number2N3971A
Item NameTransistor
FSC / FSG5961 / 59 — No Item Name Available
ManufacturerAdelco Elektronik Gmbh
StatusACTIVE
Mounting MethodTERMINAL
Terminal Type and Quantity3 UNINSULATED WIRE LEAD
Joint Electronic Device Engineering Council/jedec/case Outline DesignationTO-18
Power Rating Per Characteristic1.8 WATTS MAXIMUM TOTAL DEVICE DISSIPATION
Features ProvidedHERMETICALLY SEALED CASE
Voltage Rating in Volts Per Characteristic40.0 MAXIMUM DRAIN TO GATE VOLTAGE AND 40.0 MAXIMUM DRAIN TO SOURCE VOLTAGE AND 40.0 MAXIMUM REVERSE GATE TO SOURCE VOLTAGE
Internal ConfigurationFIELD EFFECT
Terminal Length0.500 INCHES MINIMUM IN
Electrode Internally-Electrically Connected to CaseGATE
Specification/standard Data80131-RELEASE5129 PROFESSIONAL/INDUSTRIAL ASSOCIATION SPECIFICATION
Semiconductor MaterialSILICON
Overall Diameter0.209 INCHES MINIMUM AND 0.230 INCHES MAXIMUM IN
Current Rating Per Characteristic50.00 MILLIAMPERES MAXIMUM GATE CURRENT
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
5961-00-005-7008247ASC0279-001 INTERCHANGEABLE
Transistor
Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier
5961-00-203-586210220020 INTERCHANGEABLE
Transistor
Us Army Aviation and Missile Command
5961-00-449-174863221-1 INTERCHANGEABLE
Transistor
L3harris Technologies, Inc.
5961-00-902-0155 INTERCHANGEABLE
Transistor
5961-00-976-2224 INTERCHANGEABLE
Transistor
Cross-Reference Index
Part NumberManufacturer
2N3971A Adelco Elektronik Gmbh (DEU)
10195571 Us Army Aviation and Missile Command (USA)
2N3971 Freescale Semiconductor, Inc. (USA)
2N3971 Telcom Semiconductor Inc (USA)
2N3971 Adelco Elektronik Gmbh (DEU)
2836170 Lockheed Corp Lockheed Electronics Co Inc (USA)
2N3971 Raytheon Systems Ltd (weapons Support Group) (GBR)
2N3971 Electronic Industries Association
2N3971 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
RELEASE5129 Electronic Industries Association
2N3971 Siliconix Incorporated Div Siliconix (USA)
2N3971 Texas Instruments Incorporated (USA)
12050-0013 Honeywell International Inc Dba Honeywell (USA)
2N3971 National Semiconductor Corporation (USA)
2N3971 Raytheon Systems Ltd (GBR)
Related Parts
5961-00-005-7008INTERCHANGEABLE
TRANSISTOR
247ASC0279-001
5961-00-203-5862INTERCHANGEABLE
TRANSISTOR
10220020
5961-00-449-1748INTERCHANGEABLE
TRANSISTOR
63221-1
5961-00-902-0155INTERCHANGEABLE
TRANSISTOR
5961-00-976-2224INTERCHANGEABLE
TRANSISTOR

Frequently Asked Questions

What is NSN 5961-00-126-7230?

NSN 5961-00-126-7230 is a Transistor, manufactured by Adelco Elektronik Gmbh, classified under FSC 5961 (No Item Name Available). Status: active.

What are the part numbers for NSN 5961-00-126-7230?

NSN 5961-00-126-7230 has 15 cross-referenced part numbers: 2N3971A (Adelco Elektronik Gmbh), 10195571 (Us Army Aviation and Missile Command), 2N3971 (Freescale Semiconductor, Inc.), 2N3971 (Telcom Semiconductor Inc), 2N3971 (Adelco Elektronik Gmbh) and 10 more.

What NSN replaces 5961-00-126-7230?

There are 5 known substitutes for 5961-00-126-7230: 5961-00-005-7008, 5961-00-203-5862, 5961-00-449-1748 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 2N3971A?

Key specifications for 2N3971A: Mounting Method: TERMINAL; Terminal Type and Quantity: 3 UNINSULATED WIRE LEAD; Joint Electronic Device Engineering Council/jedec/case Outline Designation: TO-18; Power Rating Per Characteristic: 1.8 WATTS MAXIMUM TOTAL DEVICE DISSIPATION. 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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