PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

2549118Transistor

Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier · NSN 5961-00-572-4284 · FSC 5961 · No Item Name Available
Verified by PartsTable
NSN 5961-00-572-4284 — this item is cataloged by the U.S. Government under National Stock Number 5961-00-572-4284. Primary manufacturer part number: 2549118.
Features
  • Transistor — FSC 5961
  • Current Rating Per Characteristic: 50.00 AMPERES MAXIMUM EMITTER CURRENT, DC
  • Terminal Circle Diameter: 0.100 INCHES NOMINAL IN
  • Terminal Length: 0.500 INCHES MINIMUM IN
  • Semiconductor Material: SILICON
  • Terminal Type and Quantity: 4 UNINSULATED WIRE LEAD
  • Electrode Internally-Electrically Connected to Case: BASE 2
  • Mounting Method: TERMINAL
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transistor, cataloged under National Stock Number 5961-00-572-4284, 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 Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier. Government technical data includes 12 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 8 commercial cross-references from 7 manufacturers, enabling identification through both NSN and commercial part number lookups. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5961-00-572-4284
Primary Part Number2549118
Item NameTransistor
FSC / FSG5961 / 59 — No Item Name Available
ManufacturerNavair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
StatusACTIVE
Current Rating Per Characteristic50.00 AMPERES MAXIMUM EMITTER CURRENT, DC
Terminal Circle Diameter0.100 INCHES NOMINAL IN
Terminal Length0.500 INCHES MINIMUM IN
Semiconductor MaterialSILICON
Terminal Type and Quantity4 UNINSULATED WIRE LEAD
Electrode Internally-Electrically Connected to CaseBASE 2
Mounting MethodTERMINAL
Power Rating Per Characteristic300.0 MILLIWATTS MAXIMUM TOTAL DEVICE DISSIPATION
Internal ConfigurationUNIJUNCTION
Features ProvidedHERMETICALLY SEALED CASE
Overall Diameter0.219 INCHES NOMINAL IN
Voltage Rating in Volts Per Characteristic25.0 MAXIMUM INTERBASE VOLTAGE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 10
5961-00-054-6748 INTERCHANGEABLE
Transistor
5920-00-142-74584397 INTERCHANGEABLE
Fuseholder,block
Cooper Bussmann, Llc Dba Cooper Industries
5961-00-408-2211 INTERCHANGEABLE
Transistor
5950-00-487-7913661820 INTERCHANGEABLE
Reactor
Lockheed Martin Corporation Div Rms - Mitchel Field
5961-00-532-0722 INTERCHANGEABLE
Transistor
5935-00-721-25584397 INTERCHANGEABLE
Connector,plug,electrical
Souriau Usa, Inc. Dba Souriau Usa Inc
5961-01-023-9447352-0777-031 INTERCHANGEABLE
Transistor
Rockwell Collins, Inc. Dba Collins Aerospace Commercial Systems Div Collins Aerospace - Commercial Systems
5330-01-188-92754397 INTERCHANGEABLE
Seal
Wilshire Corp
6130-01-463-11234397 INTERCHANGEABLE
Power Supply
Telcor Instruments Inc
7690-01-523-22344397 INTERCHANGEABLE
Marker,identification
Electromark
Cross-Reference Index
Part NumberManufacturer
L532000401 Lockheed Martin Librascope Corporation (USA)
2N3980 Texas Instruments Incorporated (USA)
2549118 PRIMARY Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA)
JAN2N4853 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
2549118 Solid State Devices, Inc (USA)
4397 The Bechdon Company, Llc (USA)
2N4853 Freescale Semiconductor, Inc. (USA)
SU92 Freescale Semiconductor, Inc. (USA)
Related Parts
5961-00-054-6748INTERCHANGEABLE
TRANSISTOR
5920-00-142-7458INTERCHANGEABLE
FUSEHOLDER,BLOCK
4397
5961-00-408-2211INTERCHANGEABLE
TRANSISTOR
5950-00-487-7913INTERCHANGEABLE
REACTOR
661820
5961-00-532-0722INTERCHANGEABLE
TRANSISTOR
5935-00-721-2558INTERCHANGEABLE
CONNECTOR,PLUG,ELECTRICAL
4397
5961-01-023-9447INTERCHANGEABLE
TRANSISTOR
352-0777-031
5330-01-188-9275INTERCHANGEABLE
SEAL
4397
6130-01-463-1123INTERCHANGEABLE
POWER SUPPLY
4397
7690-01-523-2234INTERCHANGEABLE
MARKER,IDENTIFICATION
4397

Frequently Asked Questions

What is NSN 5961-00-572-4284?

NSN 5961-00-572-4284 is a Transistor, manufactured by Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier, classified under FSC 5961 (No Item Name Available). Status: active.

What are the part numbers for NSN 5961-00-572-4284?

NSN 5961-00-572-4284 has 8 cross-referenced part numbers: L532000401 (Lockheed Martin Librascope Corporation), 2N3980 (Texas Instruments Incorporated), 2549118 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier), JAN2N4853 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 2549118 (Solid State Devices, Inc) and 3 more.

What NSN replaces 5961-00-572-4284?

There are 10 known substitutes for 5961-00-572-4284: 5961-00-054-6748, 5920-00-142-7458, 5961-00-408-2211 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 2549118?

Key specifications for 2549118: Current Rating Per Characteristic: 50.00 AMPERES MAXIMUM EMITTER CURRENT, DC; Terminal Circle Diameter: 0.100 INCHES NOMINAL IN; Special Features: JUNCTION PATTERN ARRANGEMENT: PN; Terminal Length: 0.500 INCHES MINIMUM IN. 14 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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