PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

TR149-01ATransistor

Eldec Aerospace Corp · NSN 5961-01-348-0073 · FSC 5961 · No Item Name Available
Verified by PartsTable
NSN 5961-01-348-0073 — this item is cataloged by the U.S. Government under National Stock Number 5961-01-348-0073. Primary manufacturer part number: TR149-01A.
Features
  • Transistor — FSC 5961
  • Maximum Operating Temp Per Measurement Point: 150.0 CELSIUS JUNCTION DEGC
  • Terminal Circle Diameter: 0.190 INCHES MINIMUM AND 0.210 INCHES MAXIMUM IN
  • Internal Configuration: FIELD EFFECT
  • Terminal Type and Quantity: 3 UNINSULATED WIRE LEAD
  • Current Rating Per Characteristic: -16.00 AMPERES MAXIMUM OFF-STATE CURRENT, PEAK AND -4.00 AMPERES MAXIMUM DRAIN CURRENT
  • Semiconductor Material: SILICON
  • 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 5961-01-348-0073, 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 Eldec Aerospace Corp. Government technical data includes 12 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5961-01-348-0073
Primary Part NumberTR149-01A
Item NameTransistor
FSC / FSG5961 / 59 — No Item Name Available
ManufacturerEldec Aerospace Corp
StatusACTIVE
Maximum Operating Temp Per Measurement Point150.0 CELSIUS JUNCTION DEGC
Terminal Circle Diameter0.190 INCHES MINIMUM AND 0.210 INCHES MAXIMUM IN
Internal ConfigurationFIELD EFFECT
Terminal Type and Quantity3 UNINSULATED WIRE LEAD
Current Rating Per Characteristic-16.00 AMPERES MAXIMUM OFF-STATE CURRENT, PEAK AND -4.00 AMPERES MAXIMUM DRAIN CURRENT
Semiconductor MaterialSILICON
Mounting MethodTERMINAL
Features ProvidedHERMETICALLY SEALED CASE AND ELECTROSTATIC SENSITIVE
Power Rating Per Characteristic20.0 WATTS MAXIMUM TOTAL DEVICE DISSIPATION
Voltage Rating in Volts Per Characteristic-100.0 MAXIMUM DRAIN TO SOURCE VOLTAGE AND -100.0 MAXIMUM DRAIN TO GATE VOLTAGE AND 20.0 MAXIMUM GATE TO SOURCE VOLTAGE
Overall Diameter0.350 INCHES MINIMUM AND 0.370 INCHES MAXIMUM IN
Terminal Length0.500 INCHES MINIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
5961-01-221-822704ES053-001 INTERCHANGEABLE
Transistor
Raytheon Co ESD Long Island Div
5961-01-291-2885 INTERCHANGEABLE
Transistor
Cross-Reference Index
Part NumberManufacturer
94-7115 Infineon Technologies Americas Corp (USA)
TR149-01A PRIMARY Eldec Aerospace Corp (USA)
IRFF9120 International Rectifier Corporation (USA)
IRFF9120 Infineon Technologies Americas Corp (USA)
Related Parts
5961-01-221-8227INTERCHANGEABLE
TRANSISTOR
04ES053-001
5961-01-291-2885INTERCHANGEABLE
TRANSISTOR

Frequently Asked Questions

What is NSN 5961-01-348-0073?

NSN 5961-01-348-0073 is a Transistor, manufactured by Eldec Aerospace Corp, classified under FSC 5961 (No Item Name Available). Status: active.

What are the part numbers for NSN 5961-01-348-0073?

NSN 5961-01-348-0073 has 4 cross-referenced part numbers: 94-7115 (Infineon Technologies Americas Corp), TR149-01A (Eldec Aerospace Corp), IRFF9120 (International Rectifier Corporation), IRFF9120 (Infineon Technologies Americas Corp).

What NSN replaces 5961-01-348-0073?

There are 2 known substitutes for 5961-01-348-0073: 5961-01-221-8227, 5961-01-291-2885. Verify interchangeability with system specifications before substitution.

What are the specifications of TR149-01A?

Key specifications for TR149-01A: Maximum Operating Temp Per Measurement Point: 150.0 CELSIUS JUNCTION DEGC; Terminal Circle Diameter: 0.190 INCHES MINIMUM AND 0.210 INCHES MAXIMUM IN; Internal Configuration: FIELD EFFECT; Terminal Type and Quantity: 3 UNINSULATED WIRE LEAD. 13 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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