PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

537221-2Transistor

Raytheon Company Dba Raytheon · NSN 5961-00-147-7694 · FSC 5961 · No Item Name Available
Verified by PartsTable
NSN 5961-00-147-7694 — this item is cataloged by the U.S. Government under National Stock Number 5961-00-147-7694. Primary manufacturer part number: 537221-2.
Features
  • Transistor — FSC 5961
  • Maximum Operating Temp Per Measurement Point: 200.0 CELSIUS JUNCTION DEGC
  • Power Rating Per Characteristic: 87.5 WATTS MAXIMUM COLLECTOR POWER DISSIPATION
  • Overall Diameter: 0.830 INCHES MAXIMUM IN
  • Features Provided: HERMETICALLY SEALED CASE
  • Voltage Rating in Volts Per Characteristic: 60.0 MAXIMUM BREAKDOWN VOLTAGE, COLLECTOR-TO-EMITTER, BASE OPEN AND 60.0 MAXIMUM BREAKDOWN VOLTAGE, COLLECTOR-TO-BASE, EMITTER OPEN AND 5.0 MAXIMUM BREAKDOWN VOLTAGE, EMITTER-TO-BASE, COLLECTOR OPEN
  • Test Data Document: 96214-537221 DRAWING (THIS IS THE BASIC GOVERNING DRAWING, SUCH AS A CONTRACTOR DRAWING, ORIGINAL EQUIPMENT MANUFACTURER DRAWING, ETC.; EXCLUDES ANY SPECIFICATION, STANDARD OR OTHER DOCUMENT THAT MAY BE REFERENCED IN A BASIC GOVERNING DRAWING)
  • Terminal Type and Quantity: 2 UNINSULATED WIRE LEAD AND 1 CASE
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transistor, cataloged under National Stock Number 5961-00-147-7694, 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 Raytheon Company Dba Raytheon. Government technical data includes 14 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 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
NSN5961-00-147-7694
Primary Part Number537221-2
Item NameTransistor
FSC / FSG5961 / 59 — No Item Name Available
ManufacturerRaytheon Company Dba Raytheon
StatusACTIVE
Maximum Operating Temp Per Measurement Point200.0 CELSIUS JUNCTION DEGC
Power Rating Per Characteristic87.5 WATTS MAXIMUM COLLECTOR POWER DISSIPATION
Overall Diameter0.830 INCHES MAXIMUM IN
Features ProvidedHERMETICALLY SEALED CASE
Voltage Rating in Volts Per Characteristic60.0 MAXIMUM BREAKDOWN VOLTAGE, COLLECTOR-TO-EMITTER, BASE OPEN AND 60.0 MAXIMUM BREAKDOWN VOLTAGE, COLLECTOR-TO-BASE, EMITTER OPEN AND 5.0 MAXIMUM BREAKDOWN VOLTAGE, EMITTER-TO-BASE, COLLECTOR OPEN
Test Data Document96214-537221 DRAWING (THIS IS THE BASIC GOVERNING DRAWING, SUCH AS A CONTRACTOR DRAWING, ORIGINAL EQUIPMENT MANUFACTURER DRAWING, ETC.; EXCLUDES ANY SPECIFICATION, STANDARD OR OTHER DOCUMENT THAT MAY BE REFERENCED IN A BASIC GOVERNING DRAWING)
Terminal Type and Quantity2 UNINSULATED WIRE LEAD AND 1 CASE
Semiconductor MaterialSILICON
Internal ConfigurationJUNCTION CONTACT
Current Rating Per Characteristic1.00 AMPERES MAXIMUM BASE CURRENT, DC AND 5.00 AMPERES MAXIMUM COLLECTOR CURRENT, DC
Mounting MethodUNTHREADED HOLE(S)
Mounting Facility Quantity2
Electrode Internally-Electrically Connected to CaseCOLLECTOR
Internal Junction ConfigurationPNP
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
5961-00-107-0736 INTERCHANGEABLE
Transistor
5365-00-127-596253722-12 INTERCHANGEABLE
Shim,barrel Support
Hamilton Sundstrand Corporation Dba Collins Aerospace
5961-01-007-6815138C045H02 INTERCHANGEABLE
Transistor
Northrop Grumman Support Services Corp
Cross-Reference Index
Part NumberManufacturer
2N4902 Texas Instruments Incorporated (USA)
2N4902 Freescale Semiconductor, Inc. (USA)
2N4902 Solitron Devices, Inc. (USA)
537221-2 PRIMARY Raytheon Company Dba Raytheon (USA)
Related Parts
5961-00-107-0736INTERCHANGEABLE
TRANSISTOR
5365-00-127-5962INTERCHANGEABLE
SHIM,BARREL SUPPORT
53722-12
5961-01-007-6815INTERCHANGEABLE
TRANSISTOR
138C045H02

Frequently Asked Questions

What is NSN 5961-00-147-7694?

NSN 5961-00-147-7694 is a Transistor, manufactured by Raytheon Company Dba Raytheon, classified under FSC 5961 (No Item Name Available). Status: active.

What are the part numbers for NSN 5961-00-147-7694?

NSN 5961-00-147-7694 has 4 cross-referenced part numbers: 2N4902 (Texas Instruments Incorporated), 2N4902 (Freescale Semiconductor, Inc.), 2N4902 (Solitron Devices, Inc.), 537221-2 (Raytheon Company Dba Raytheon).

What NSN replaces 5961-00-147-7694?

There are 3 known substitutes for 5961-00-147-7694: 5961-00-107-0736, 5365-00-127-5962, 5961-01-007-6815. Verify interchangeability with system specifications before substitution.

What are the specifications of 537221-2?

Key specifications for 537221-2: Maximum Operating Temp Per Measurement Point: 200.0 CELSIUS JUNCTION DEGC; Power Rating Per Characteristic: 87.5 WATTS MAXIMUM COLLECTOR POWER DISSIPATION; Overall Diameter: 0.830 INCHES MAXIMUM IN; Features Provided: HERMETICALLY SEALED 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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