PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

271SEA4903Transistor

Solitron Devices, Inc. · NSN 5961-00-408-0519 · FSC 5961 · No Item Name Available
Verified by PartsTable
NSN 5961-00-408-0519 — this item is cataloged by the U.S. Government under National Stock Number 5961-00-408-0519. Primary manufacturer part number: 271SEA4903.
Features
  • Transistor — FSC 5961
  • Specification/standard Data: 80131-RELEASE5443 PROFESSIONAL/INDUSTRIAL ASSOCIATION SPECIFICATION
  • Terminal Type and Quantity: 2 UNINSULATED WIRE LEAD AND 1 CASE
  • Electrode Internally-Electrically Connected to Case: COLLECTOR
  • Mounting Method: UNTHREADED HOLE(S)
  • Mounting Facility Quantity: 2
  • Voltage Rating in Volts Per Characteristic: 80.0 MAXIMUM COLLECTOR TO BASE VOLTAGE/STATIC/EMITTER OPEN AND 80.0 MAXIMUM COLLECTOR TO EMITTER VOLTAGE/STATIC/BASE OPEN AND 5.0 MAXIMUM EMITTER TO BASE VOLTAGE, STATIC, COLLECTOR OPEN
  • Maximum Operating Temp Per Measurement Point: 200.0 CELSIUS JUNCTION DEGC
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transistor, cataloged under National Stock Number 5961-00-408-0519, 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 Solitron Devices, Inc.. Government technical data includes 11 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. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5961-00-408-0519
Primary Part Number271SEA4903
Item NameTransistor
FSC / FSG5961 / 59 — No Item Name Available
ManufacturerSolitron Devices, Inc.
StatusACTIVE
Specification/standard Data80131-RELEASE5443 PROFESSIONAL/INDUSTRIAL ASSOCIATION SPECIFICATION
Terminal Type and Quantity2 UNINSULATED WIRE LEAD AND 1 CASE
Electrode Internally-Electrically Connected to CaseCOLLECTOR
Mounting MethodUNTHREADED HOLE(S)
Mounting Facility Quantity2
Voltage Rating in Volts Per Characteristic80.0 MAXIMUM COLLECTOR TO BASE VOLTAGE/STATIC/EMITTER OPEN AND 80.0 MAXIMUM COLLECTOR TO EMITTER VOLTAGE/STATIC/BASE OPEN AND 5.0 MAXIMUM EMITTER TO BASE VOLTAGE, STATIC, COLLECTOR OPEN
Maximum Operating Temp Per Measurement Point200.0 CELSIUS JUNCTION DEGC
Power Rating Per Characteristic87.5 WATTS MAXIMUM COLLECTOR POWER DISSIPATION
Internal ConfigurationJUNCTION CONTACT
Semiconductor MaterialSILICON
Current Rating Per Characteristic1.00 AMPERES MAXIMUM BASE CURRENT, DC AND 5.00 AMPERES MAXIMUM COLLECTOR CURRENT, DC
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5961-00-107-0736 INTERCHANGEABLE
Transistor
5310-00-271-85265319 INTERCHANGEABLE
Washer,split
Sicard a Division of Smi-Snowblast Inc Dba Sicard
5961-00-404-5599 INTERCHANGEABLE
Transistor
5961-00-407-0189 INTERCHANGEABLE
Transistor
5961-00-436-0953 INTERCHANGEABLE
Transistor
5961-00-456-90342N4900 INTERCHANGEABLE
Transistor
Microsemi Corp - Massachusetts
5961-00-465-42482N4898 INTERCHANGEABLE
Transistor
Semitronics Corp
5961-00-488-7376 INTERCHANGEABLE
Transistor
5961-00-494-4961 INTERCHANGEABLE
Transistor
5961-00-627-0275 INTERCHANGEABLE
Transistor
Cross-Reference Index
Part NumberManufacturer
271SEA4903 Solitron Devices, Inc. (USA)
0100426 Rohde & Schwarz Gmbh & Co. Kommanditgesellschaft Dba R & S (DEU)
2N4903 Solid State Devices, Inc (USA)
2N4903 Fairchild Semiconductor Corp (USA)
6-1533 L3harris Technologies, Inc. Dba Harris Corp Div Harris Defense Communications (USA)
2N4903 Triman Industries Inc (USA)
2N4903 Gilbert Engineering Co Inc/incon Sub of Transitron Electronic Corp (USA)
2N4903 Aai/acl Technologies Inc Im and C Div (USA)
2N4903 Freescale Semiconductor, Inc. (USA)
2N4903 Texas Instruments Incorporated (USA)
2N4903 Solitron Devices, Inc. (USA)
2N4903 Csr Industries Inc (USA)
N4903 Cazeneuve (FRA)
2N4903 Electronic Industries Association
RELEASE5443 Electronic Industries Association
Related Parts
5961-00-107-0736INTERCHANGEABLE
TRANSISTOR
5310-00-271-8526INTERCHANGEABLE
WASHER,SPLIT
5319
5961-00-404-5599INTERCHANGEABLE
TRANSISTOR
5961-00-407-0189INTERCHANGEABLE
TRANSISTOR
5961-00-436-0953INTERCHANGEABLE
TRANSISTOR
5961-00-456-9034INTERCHANGEABLE
TRANSISTOR
2N4900
5961-00-465-4248INTERCHANGEABLE
TRANSISTOR
2N4898
5961-00-488-7376INTERCHANGEABLE
TRANSISTOR
5961-00-494-4961INTERCHANGEABLE
TRANSISTOR
5961-00-627-0275INTERCHANGEABLE
TRANSISTOR
4320-01-188-7100INTERCHANGEABLE
FLANGE,MOUNTING
61533
6515-01-647-4240INTERCHANGEABLE
CANNULA,NASAL,OXYGEN
N4903

Frequently Asked Questions

What is NSN 5961-00-408-0519?

NSN 5961-00-408-0519 is a Transistor, manufactured by Solitron Devices, Inc., classified under FSC 5961 (No Item Name Available). Status: active.

What are the part numbers for NSN 5961-00-408-0519?

NSN 5961-00-408-0519 has 15 cross-referenced part numbers: 271SEA4903 (Solitron Devices, Inc.), 0100426 (Rohde & Schwarz Gmbh & Co. Kommanditgesellschaft Dba R & S), 2N4903 (Solid State Devices, Inc), 2N4903 (Fairchild Semiconductor Corp), 6-1533 (L3harris Technologies, Inc. Dba Harris Corp Div Harris Defense Communications) and 10 more.

What NSN replaces 5961-00-408-0519?

There are 12 known substitutes for 5961-00-408-0519: 5961-00-107-0736, 5310-00-271-8526, 5961-00-404-5599 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 271SEA4903?

Key specifications for 271SEA4903: Specification/standard Data: 80131-RELEASE5443 PROFESSIONAL/INDUSTRIAL ASSOCIATION SPECIFICATION; Overall Length: 1.573 INCHES MAXIMUM IN; Special Features: JUNCTION PATTERN ARRANGEMENT: PNP; Terminal Type and Quantity: 2 UNINSULATED WIRE LEAD AND 1 CASE. 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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