PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

2N2639Semiconductor Devices,unitized

Adelco Elektronik Gmbh · NSN 5961-00-781-3328 · FSC 5961 · No Item Name Available
Verified by PartsTable
NSN 5961-00-781-3328 — this item is cataloged by the U.S. Government under National Stock Number 5961-00-781-3328. Primary manufacturer part number: 2N2639.
Features
  • Semiconductor Devices,unitized — FSC 5961
  • Overall Diameter: 0.335 INCHES MAXIMUM IN
  • Features Provided: HERMETICALLY SEALED CASE
  • Terminal Circle Diameter: 0.200 INCHES NOMINAL IN
  • Terminal Length: 0.500 INCHES MINIMUM IN
  • Mounting Method: TERMINAL
  • Component Name and Quantity: 2 TRANSISTOR
  • Specification/standard Data: 80131-RELEASE4034 PROFESSIONAL/INDUSTRIAL ASSOCIATION SPECIFICATION
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Semiconductor Devices,unitized, cataloged under National Stock Number 5961-00-781-3328, 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 8 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5961-00-781-3328
Primary Part Number2N2639
Item NameSemiconductor Devices,unitized
FSC / FSG5961 / 59 — No Item Name Available
ManufacturerAdelco Elektronik Gmbh
StatusACTIVE
Overall Diameter0.335 INCHES MAXIMUM IN
Features ProvidedHERMETICALLY SEALED CASE
Terminal Circle Diameter0.200 INCHES NOMINAL IN
Terminal Length0.500 INCHES MINIMUM IN
Mounting MethodTERMINAL
Component Name and Quantity2 TRANSISTOR
Specification/standard Data80131-RELEASE4034 PROFESSIONAL/INDUSTRIAL ASSOCIATION SPECIFICATION
Current Rating Per Characteristic30.00 MILLIAMPERES MAXIMUM COLLECTOR CURRENT, DC ALL TRANSISTOR
Transfer Ratio65.0 MAXIMUM SMALL-SIGNAL SHORT-CIRCUIT FORWARD CURRENT TRANSFER RATIO, COMMON-EMITTER ALL TRANSISTOR
Power Rating Per Characteristic300.0 MILLIWATTS MAXIMUM TOTAL POWER DISSIPATION ALL TRANSISTOR
Semiconductor MaterialSILICON ALL TRANSISTOR
Terminal Type and Quantity6 UNINSULATED WIRE LEAD
Voltage Rating in Volts Per Characteristic40.0 MAXIMUM BREAKDOWN VOLTAGE, COLLECTOR-TO-BASE, EMITTER OPEN AND 45.0 MAXIMUM BREAKDOWN VOLTAGE, COLLECTOR-TO-EMITTER, BASE OPEN AND 5.0 MAXIMUM EMITTER TO BASE VOLTAGE, STATIC, COLLECTOR OPEN ALL TRANSISTOR
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
5961-00-104-8378 INTERCHANGEABLE
Semiconductor Devices,unitized
5961-00-126-1763341-0122-001 INTERCHANGEABLE
Semiconductor Devices,unitized
Honeywell International Inc. Dba Honeywell Div Aerospace ? Redmond Commercial
5961-00-179-4366 INTERCHANGEABLE
Semiconductor Devices,unitized
5961-00-403-4235 INTERCHANGEABLE
Semiconductor Devic
5961-00-949-7342 INTERCHANGEABLE
Semiconductor Devices,unitized
5961-01-076-0451SD1713H INTERCHANGEABLE
Semiconductor Devices,unitized
District of Columbia Government Corrections Dept Industrial Div
5961-01-335-8187 INTERCHANGEABLE
Semiconductor Devices,unitized
Cross-Reference Index
Part NumberManufacturer
2N2639 Adelco Elektronik Gmbh (DEU)
EIARELEASE4034C Electronic Industries Association
2N2639 Texas Instruments Incorporated (USA)
2N2639 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MILS19500-316 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
2N2639A Adelco Elektronik Gmbh (DEU)
2N2639 Electronic Industries Association
2N2639 Raytheon Company Dba Raytheon (USA)
Related Parts
5961-00-104-8378INTERCHANGEABLE
SEMICONDUCTOR DEVICES,UNITIZED
5961-00-126-1763INTERCHANGEABLE
SEMICONDUCTOR DEVICES,UNITIZED
341-0122-001
5961-00-179-4366INTERCHANGEABLE
SEMICONDUCTOR DEVICES,UNITIZED
5961-00-403-4235INTERCHANGEABLE
SEMICONDUCTOR DEVIC
5961-00-949-7342INTERCHANGEABLE
SEMICONDUCTOR DEVICES,UNITIZED
5961-01-076-0451INTERCHANGEABLE
SEMICONDUCTOR DEVICES,UNITIZED
SD1713H
5961-01-335-8187INTERCHANGEABLE
SEMICONDUCTOR DEVICES,UNITIZED

Frequently Asked Questions

What is NSN 5961-00-781-3328?

NSN 5961-00-781-3328 is a Semiconductor Devices,unitized, manufactured by Adelco Elektronik Gmbh, classified under FSC 5961 (No Item Name Available). Status: active.

What are the part numbers for NSN 5961-00-781-3328?

NSN 5961-00-781-3328 has 8 cross-referenced part numbers: 2N2639 (Adelco Elektronik Gmbh), EIARELEASE4034C (Electronic Industries Association), 2N2639 (Texas Instruments Incorporated), 2N2639 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), MILS19500-316 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M) and 3 more.

What NSN replaces 5961-00-781-3328?

There are 7 known substitutes for 5961-00-781-3328: 5961-00-104-8378, 5961-00-126-1763, 5961-00-179-4366 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 2N2639?

Key specifications for 2N2639: Overall Diameter: 0.335 INCHES MAXIMUM IN; Overall Length: 0.260 INCHES MAXIMUM IN; Features Provided: HERMETICALLY SEALED CASE; Terminal Circle Diameter: 0.200 INCHES NOMINAL IN. 15 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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