PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

40250ATransistor

Adelco Elektronik Gmbh · NSN 5961-00-905-2926 · FSC 5961 · No Item Name Available
Verified by PartsTable
NSN 5961-00-905-2926 — this item is cataloged by the U.S. Government under National Stock Number 5961-00-905-2926. Primary manufacturer part number: 40250A.
Features
  • Transistor — FSC 5961
  • Mounting Method: UNTHREADED HOLE(S)
  • Terminal Type and Quantity: 2 UNINSULATED WIRE LEAD AND 1 CASE
  • Overall Diameter: 0.620 INCHES MAXIMUM IN
  • Features Provided: HERMETICALLY SEALED CASE
  • Current Rating Per Characteristic: 2.00 AMPERES MAXIMUM BASE CURRENT, DC AND 4.00 AMPERES MAXIMUM COLLECTOR CURRENT, DC
  • Mounting Facility Quantity: 2
  • Electrode Internally-Electrically Connected to Case: COLLECTOR
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transistor, cataloged under National Stock Number 5961-00-905-2926, 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 12 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 33 commercial cross-references from 32 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5961-00-905-2926
Primary Part Number40250A
Item NameTransistor
FSC / FSG5961 / 59 — No Item Name Available
ManufacturerAdelco Elektronik Gmbh
StatusCANCELLED
Mounting MethodUNTHREADED HOLE(S)
Terminal Type and Quantity2 UNINSULATED WIRE LEAD AND 1 CASE
Overall Diameter0.620 INCHES MAXIMUM IN
Features ProvidedHERMETICALLY SEALED CASE
Current Rating Per Characteristic2.00 AMPERES MAXIMUM BASE CURRENT, DC AND 4.00 AMPERES MAXIMUM COLLECTOR CURRENT, DC
Mounting Facility Quantity2
Electrode Internally-Electrically Connected to CaseCOLLECTOR
Power Rating Per Characteristic29.0 WATTS MAXIMUM COLLECTOR POWER DISSIPATION
Maximum Operating Temp Per Measurement Point200.0 CELSIUS JUNCTION DEGC
Voltage Rating in Volts Per Characteristic50.0 MAXIMUM BREAKDOWN VOLTAGE, COLLECTOR-TO-BASE, EMITTER OPEN AND 40.0 MAXIMUM BREAKDOWN VOLTAGE, COLLECTOR-TO-EMITTER, BASE OPEN AND 5.0 MAXIMUM BREAKDOWN VOLTAGE, EMITTER-TO-BASE, COLLECTOR OPEN
Internal ConfigurationJUNCTION CONTACT
Semiconductor MaterialSILICON
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
3110-00-100-0639 INTERCHANGEABLE
Cup,tapered Roller Bearing
5985-00-145-3539779-10 INTERCHANGEABLE
Attenuator,fixed
Narda Holdings, Inc. Dba Narda-Miteq Div Narda-Miteq
5945-00-201-861022601-1 INTERCHANGEABLE
Relay,electromagnetic
Essex Brownell Inc. Div Essex Group Inc
5905-00-299-2003 INTERCHANGEABLE
Resistor,fixed,composition
5305-00-359-8337 INTERCHANGEABLE
Screw
5330-00-374-8197300482A4 INTERCHANGEABLE
Seal,plain
Meggitt (north Hollywood), Inc. Dba Meggitt Control Systems Div Meggitt Defense Systems, Inc.
6630-00-431-476040250 INTERCHANGEABLE
Electrode,ph
Beckman Coulter, Inc. Dba Beckman Coulter Inc Div Us Customer Operations
5961-00-431-68291854-0224 INTERCHANGEABLE
Transistor
Keysight Technologies Inc
7035-00-562-9881 INTERCHANGEABLE
Door,front
4130-00-773-1731 INTERCHANGEABLE
Pane
Cross-Reference Index
Part NumberManufacturer
40250A Adelco Elektronik Gmbh (DEU)
40250 Compaq Federal Llc (USA)
8210-1095 British Sarozal Ltd (GBR)
014-587 Ampex Systems Corp (USA)
38880 Renesas Electronics America Inc (USA)
10020 Giga-Tronics Incorporated Dba Giga-Tronics (USA)
40250 Electronic Industries Association
851271 L3 Aviation Products, Inc. Dba L3 Technologies (USA)
149016801 Granger Telecom (GBR)
5L5512-201-35 Hensoldt Sensors Gmbh Div Seps (DEU)
12675-007 Systron-Donner Corp Microwave/instrument Div (USA)
40250 Lockheed Martin Corporation Dba Lockheed Martin Div Lockheed Martin (USA)
40250 L3 Technologies, Inc. Div Communication Systems-East (USA)
345-214-008 L3harris Interstate Electronics Corporation (USA)
40-666-694 Hensoldt Uk (GBR)
SR0666/7 Devonport Royal Dockyard Limited, Devonport Royal Dockyard (GBR)
005256 Tdk-Lambda Americas Inc. Div High Power Division (USA)
8210-1095 Iet Labs Inc (USA)
D0250 Renesas Electronics America Inc (USA)
385101 Leica Geosystems Ag Dba Leica Geosystems Sa (CHE)
Related Parts
3110-00-100-0639INTERCHANGEABLE
CUP,TAPERED ROLLER BEARING
5985-00-145-3539INTERCHANGEABLE
ATTENUATOR,FIXED
779-10
5945-00-201-8610INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
22601-1
5905-00-299-2003INTERCHANGEABLE
RESISTOR,FIXED,COMPOSITION
5305-00-359-8337INTERCHANGEABLE
SCREW
5330-00-374-8197INTERCHANGEABLE
SEAL,PLAIN
300482A4
6630-00-431-4760INTERCHANGEABLE
ELECTRODE,PH
40250
5961-00-431-6829INTERCHANGEABLE
TRANSISTOR
1854-0224
7035-00-562-9881INTERCHANGEABLE
DOOR,FRONT
4130-00-773-1731INTERCHANGEABLE
PANE
5961-00-963-4987INTERCHANGEABLE
TRANSISTOR
19A115527P1
5935-00-998-4254INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
978039-1

Frequently Asked Questions

What is NSN 5961-00-905-2926?

NSN 5961-00-905-2926 is a Transistor, manufactured by Adelco Elektronik Gmbh, classified under FSC 5961 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5961-00-905-2926?

NSN 5961-00-905-2926 has 33 cross-referenced part numbers: 40250A (Adelco Elektronik Gmbh), 40250 (Compaq Federal Llc), 8210-1095 (British Sarozal Ltd), 014-587 (Ampex Systems Corp), 38880 (Renesas Electronics America Inc) and 28 more.

What NSN replaces 5961-00-905-2926?

There are 12 known substitutes for 5961-00-905-2926: 3110-00-100-0639, 5985-00-145-3539, 5945-00-201-8610 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 40250A?

Key specifications for 40250A: Mounting Method: UNTHREADED HOLE(S); Terminal Type and Quantity: 2 UNINSULATED WIRE LEAD AND 1 CASE; Overall Diameter: 0.620 INCHES MAXIMUM IN; Features Provided: HERMETICALLY SEALED CASE. 14 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5961-00-905-2926 still in active supply?

NSN 5961-00-905-2926 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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