PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

2N3251ATransistor

Freescale Semiconductor, Inc. · NSN 5961-00-409-3637 · FSC 5961 · No Item Name Available
Verified by PartsTable
NSN 5961-00-409-3637 — this item is cataloged by the U.S. Government under National Stock Number 5961-00-409-3637. Primary manufacturer part number: 2N3251A.
Features
  • Transistor — FSC 5961
  • Terminal Type and Quantity: 3 UNINSULATED WIRE LEAD
  • Terminal Circle Diameter: 0.100 INCHES MAXIMUM IN
  • Features Provided: HERMETICALLY SEALED CASE
  • Current Rating Per Characteristic: 200.00 MILLIAMPERES MAXIMUM COLLECTOR CURRENT, DC
  • Overall Diameter: 0.230 INCHES NOMINAL IN
  • Semiconductor Material: SILICON
  • Maximum Operating Temp Per Measurement Point: 200.0 CELSIUS JUNCTION DEGC
Applications
  • Applications requiring Plastic Enclosure construction
General Description

The Transistor, cataloged under National Stock Number 5961-00-409-3637, 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 Freescale Semiconductor, Inc.. Government technical data includes 14 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 4 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
NSN5961-00-409-3637
Primary Part Number2N3251A
Item NameTransistor
FSC / FSG5961 / 59 — No Item Name Available
ManufacturerFreescale Semiconductor, Inc.
StatusACTIVE
Terminal Type and Quantity3 UNINSULATED WIRE LEAD
Terminal Circle Diameter0.100 INCHES MAXIMUM IN
Features ProvidedHERMETICALLY SEALED CASE
Current Rating Per Characteristic200.00 MILLIAMPERES MAXIMUM COLLECTOR CURRENT, DC
Overall Diameter0.230 INCHES NOMINAL IN
Semiconductor MaterialSILICON
Maximum Operating Temp Per Measurement Point200.0 CELSIUS JUNCTION DEGC
Mounting MethodTERMINAL
Internal Junction ConfigurationPNP
Internal ConfigurationJUNCTION CONTACT
Power Rating Per Characteristic360.0 MILLIWATTS MAXIMUM COLLECTOR POWER DISSIPATION
Voltage Rating in Volts Per Characteristic60.0 MAXIMUM BREAKDOWN VOLTAGE, COLLECTOR-TO-BASE, EMITTER OPEN AND 60.0 MAXIMUM BREAKDOWN VOLTAGE, COLLECTOR-TO-EMITTER, BASE OPEN AND 5.0 MAXIMUM BREAKDOWN VOLTAGE, EMITTER-TO-BASE, COLLECTOR OPEN
Terminal Length0.490 INCHES MINIMUM IN
MaterialPLASTIC ENCLOSURE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
5961-00-483-3251 INTERCHANGEABLE
Transistor
5961-00-911-6015 INTERCHANGEABLE
Transistor
5961-01-108-85811202383-1 INTERCHANGEABLE
Transistor
Alliant Techsystems Operations Llc Div Defense Electronic Systems
Cross-Reference Index
Part NumberManufacturer
2N3251A Freescale Semiconductor, Inc. (USA)
2N3251AA Adelco Elektronik Gmbh (DEU)
2N3251A Adelco Elektronik Gmbh (DEU)
525079 Raytheon Technical Services Company (USA)
2N3251A Lacon Electronic Gmbh (DEU)
Related Parts
5961-00-483-3251INTERCHANGEABLE
TRANSISTOR
5961-00-911-6015INTERCHANGEABLE
TRANSISTOR
5961-01-108-8581INTERCHANGEABLE
TRANSISTOR
1202383-1

Frequently Asked Questions

What is NSN 5961-00-409-3637?

NSN 5961-00-409-3637 is a Transistor, manufactured by Freescale Semiconductor, Inc., classified under FSC 5961 (No Item Name Available). Status: active.

What are the part numbers for NSN 5961-00-409-3637?

NSN 5961-00-409-3637 has 5 cross-referenced part numbers: 2N3251A (Freescale Semiconductor, Inc.), 2N3251AA (Adelco Elektronik Gmbh), 2N3251A (Adelco Elektronik Gmbh), 525079 (Raytheon Technical Services Company), 2N3251A (Lacon Electronic Gmbh).

What NSN replaces 5961-00-409-3637?

There are 3 known substitutes for 5961-00-409-3637: 5961-00-483-3251, 5961-00-911-6015, 5961-01-108-8581. Verify interchangeability with system specifications before substitution.

What are the specifications of 2N3251A?

Key specifications for 2N3251A: Terminal Type and Quantity: 3 UNINSULATED WIRE LEAD; Terminal Circle Diameter: 0.100 INCHES MAXIMUM IN; Features Provided: HERMETICALLY SEALED CASE; Current Rating Per Characteristic: 200.00 MILLIAMPERES MAXIMUM COLLECTOR CURRENT, DC. 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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