PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

2N3503Transistor

Semitronics Corp · NSN 5961-00-931-8249 · FSC 5961 · No Item Name Available
Verified by PartsTable
NSN 5961-00-931-8249 — this item is cataloged by the U.S. Government under National Stock Number 5961-00-931-8249. Primary manufacturer part number: 2N3503.
Features
  • Transistor — FSC 5961
  • Maximum Operating Temp Per Measurement Point: 200.0 CELSIUS JUNCTION DEGC
  • Terminal Circle Diameter: 0.200 INCHES NOMINAL IN
  • Current Rating Per Characteristic: 600.00 MILLIAMPERES MAXIMUM COLLECTOR CURRENT, DC
  • Terminal Length: 1.500 INCHES MINIMUM IN
  • Internal Configuration: JUNCTION CONTACT
  • Joint Electronic Device Engineering Council/jedec/case Outline Designation: TO-5
  • Terminal Type and Quantity: 3 UNINSULATED WIRE LEAD
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transistor, cataloged under National Stock Number 5961-00-931-8249, 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 Semitronics Corp. Government technical data includes 15 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 14 commercial cross-references from 12 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
NSN5961-00-931-8249
Primary Part Number2N3503
Item NameTransistor
FSC / FSG5961 / 59 — No Item Name Available
ManufacturerSemitronics Corp
StatusCANCELLED
Maximum Operating Temp Per Measurement Point200.0 CELSIUS JUNCTION DEGC
Terminal Circle Diameter0.200 INCHES NOMINAL IN
Current Rating Per Characteristic600.00 MILLIAMPERES MAXIMUM COLLECTOR CURRENT, DC
Terminal Length1.500 INCHES MINIMUM IN
Internal ConfigurationJUNCTION CONTACT
Joint Electronic Device Engineering Council/jedec/case Outline DesignationTO-5
Terminal Type and Quantity3 UNINSULATED WIRE LEAD
Voltage Rating in Volts Per Characteristic60.0 MAXIMUM COLLECTOR TO BASE VOLTAGE/STATIC/EMITTER OPEN AND 60.0 MAXIMUM COLLECTOR TO EMITTER VOLTAGE/STATIC/BASE OPEN AND 5.0 MAXIMUM EMITTER TO BASE VOLTAGE, STATIC, COLLECTOR OPEN
Specification/standard Data80131-RELEASE4802 PROFESSIONAL/INDUSTRIAL ASSOCIATION SPECIFICATION
Features ProvidedHERMETICALLY SEALED CASE
Power Rating Per Characteristic3.0 MILLIWATTS MAXIMUM TOTAL DEVICE DISSIPATION
Mounting MethodTERMINAL
Overall Diameter0.370 INCHES MAXIMUM IN
Electrode Internally-Electrically Connected to CaseCOLLECTOR
Semiconductor MaterialSILICON
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 3
5961-00-165-2598 INTERCHANGEABLE
Transistor
5961-00-421-29941203-75 INTERCHANGEABLE
Transistor
Bae Systems Information and Electronic Systems Integration Inc.
5961-00-954-06262N3502 INTERCHANGEABLE
Transistor
Fairchild Semiconductor Corp
Cross-Reference Index
Part NumberManufacturer
2N3503 Electronic Industries Association
2N3503 British Sarozal Ltd (GBR)
2N3503 Newark Electronics Corporation Dba Newark (USA)
2N3503 Adelco Elektronik Gmbh (DEU)
RELEASE4802 Electronic Industries Association
2N3503 Thales Components Corp Div Thales Components Corporation (USA)
2N3503 Lacon Electronic Gmbh (DEU)
2N3503 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
2N3503 Texas Instruments Incorporated (USA)
99075960 Thales Sa (FRA)
82T147P002 Leonardo S.p.a Land & Naval Defence Electronics Division (ITA)
2N3503A Adelco Elektronik Gmbh (DEU)
2N3503 Fairchild Semiconductor Corp (USA)
2N3503 PRIMARY Semitronics Corp (USA)
Related Parts
5961-00-165-2598INTERCHANGEABLE
TRANSISTOR
5961-00-421-2994INTERCHANGEABLE
TRANSISTOR
1203-75
5961-00-954-0626INTERCHANGEABLE
TRANSISTOR
2N3502

Frequently Asked Questions

What is NSN 5961-00-931-8249?

NSN 5961-00-931-8249 is a Transistor, manufactured by Semitronics Corp, classified under FSC 5961 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5961-00-931-8249?

NSN 5961-00-931-8249 has 14 cross-referenced part numbers: 2N3503 (Electronic Industries Association), 2N3503 (British Sarozal Ltd), 2N3503 (Newark Electronics Corporation Dba Newark), 2N3503 (Adelco Elektronik Gmbh), RELEASE4802 (Electronic Industries Association) and 9 more.

What NSN replaces 5961-00-931-8249?

There are 3 known substitutes for 5961-00-931-8249: 5961-00-165-2598, 5961-00-421-2994, 5961-00-954-0626. Verify interchangeability with system specifications before substitution.

What are the specifications of 2N3503?

Key specifications for 2N3503: Maximum Operating Temp Per Measurement Point: 200.0 CELSIUS JUNCTION DEGC; Terminal Circle Diameter: 0.200 INCHES NOMINAL IN; Current Rating Per Characteristic: 600.00 MILLIAMPERES MAXIMUM COLLECTOR CURRENT, DC; Special Features: JUNCTION PATTERN ARRANGEMENT: PNP. 17 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5961-00-931-8249 still in active supply?

NSN 5961-00-931-8249 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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