PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

18-144Transistor

Raytheon Company Dba Raytheon Co · NSN 5961-00-574-3936 · FSC 5961 · No Item Name Available
Verified by PartsTable
NSN 5961-00-574-3936 — this item is cataloged by the U.S. Government under National Stock Number 5961-00-574-3936. Primary manufacturer part number: 18-144.
Features
  • Transistor — FSC 5961
  • Maximum Operating Temp Per Measurement Point: 125.0 CELSIUS JUNCTION DEGC
  • Internal Configuration: JUNCTION CONTACT
  • Power Rating Per Characteristic: 350.0 MILLIWATTS MAXIMUM COLLECTOR POWER DISSIPATION
  • Mounting Method: TERMINAL
  • Voltage Rating in Volts Per Characteristic: 60.0 MAXIMUM BREAKDOWN VOLTAGE, COLLECTOR-TO-BASE, EMITTER OPEN AND 30.0 MAXIMUM BREAKDOWN VOLTAGE, COLLECTOR-TO-EMITTER, BASE OPEN AND 5.0 MAXIMUM BREAKDOWN VOLTAGE, EMITTER-TO-BASE, COLLECTOR OPEN
  • Terminal Circle Diameter: 0.100 INCHES NOMINAL IN
  • Semiconductor Material: SILICON
Applications
  • Applications requiring Plastic Enclosure construction
General Description

The Transistor, cataloged under National Stock Number 5961-00-574-3936, 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 Co. Government technical data includes 12 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 6 manufacturers, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5961-00-574-3936
Primary Part Number18-144
Item NameTransistor
FSC / FSG5961 / 59 — No Item Name Available
ManufacturerRaytheon Company Dba Raytheon Co
StatusACTIVE
Maximum Operating Temp Per Measurement Point125.0 CELSIUS JUNCTION DEGC
Internal ConfigurationJUNCTION CONTACT
Power Rating Per Characteristic350.0 MILLIWATTS MAXIMUM COLLECTOR POWER DISSIPATION
Mounting MethodTERMINAL
Voltage Rating in Volts Per Characteristic60.0 MAXIMUM BREAKDOWN VOLTAGE, COLLECTOR-TO-BASE, EMITTER OPEN AND 30.0 MAXIMUM BREAKDOWN VOLTAGE, COLLECTOR-TO-EMITTER, BASE OPEN AND 5.0 MAXIMUM BREAKDOWN VOLTAGE, EMITTER-TO-BASE, COLLECTOR OPEN
Terminal Circle Diameter0.100 INCHES NOMINAL IN
Semiconductor MaterialSILICON
Terminal Length0.400 INCHES MINIMUM IN
Current Rating Per Characteristic500.00 MILLIAMPERES MAXIMUM COLLECTOR CURRENT, DC
Overall Diameter0.330 INCHES MAXIMUM IN
MaterialPLASTIC ENCLOSURE
Terminal Type and Quantity3 UNINSULATED WIRE LEAD
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 9
3110-00-100-02851B3921 INTERCHANGEABLE
Cone and Rollers,tapered Roller
Caterpillar Inc Div Caterpillar Defense
2530-00-453-59771-8144 INTERCHANGEABLE
Brake,munitions Tra
Pdi Ground Support Systems, Inc.
5340-00-559-6128 INTERCHANGEABLE
Clamp,loop
5315-00-922-585818144 INTERCHANGEABLE
Pin,straight,headed
Eaton Aerospace Llc Dba Eaton Aerospace Jackson
5961-00-967-7828 INTERCHANGEABLE
Transistor
6240-01-003-866620T6-1/2/DC/CF INTERCHANGEABLE
Lamp,incandescent
Osram Sylvania Inc
4520-01-043-2482 INTERCHANGEABLE
Support,heater
5998-01-362-381289018009-1 INTERCHANGEABLE
Circuit Card Assembly
Drs Training & Control Systems, Llc Dba Leonardo Drs Training & Control Systems, Llc Div Range, Control and Unmanned Systems
3040-01-658-022218144 INTERCHANGEABLE
Housing Part,mechanical Drive
Cadillac Gage Textron Inc.
Cross-Reference Index
Part NumberManufacturer
18-144 Raytheon Company (USA)
S3641 Fairchild Semiconductor Corp (USA)
2N3641 Fairchild Industrial Products Company (USA)
89018009 Narda Holdings, Inc. Dba Narda-Miteq Div Narda-Miteq (USA)
18-144 Raytheon Company Div Corp (USA)
18-144 PRIMARY Raytheon Company Dba Raytheon Co (USA)
Related Parts
3110-00-100-0285INTERCHANGEABLE
CONE AND ROLLERS,TAPERED ROLLER
1B3921
2530-00-453-5977INTERCHANGEABLE
BRAKE,MUNITIONS TRA
1-8144
5340-00-559-6128INTERCHANGEABLE
CLAMP,LOOP
5315-00-922-5858INTERCHANGEABLE
PIN,STRAIGHT,HEADED
18144
5961-00-967-7828INTERCHANGEABLE
TRANSISTOR
6240-01-003-8666INTERCHANGEABLE
LAMP,INCANDESCENT
20T6-1/2/DC/CF
4520-01-043-2482INTERCHANGEABLE
SUPPORT,HEATER
5998-01-362-3812INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
89018009-1
3040-01-658-0222INTERCHANGEABLE
HOUSING PART,MECHANICAL DRIVE
18144

Frequently Asked Questions

What is NSN 5961-00-574-3936?

NSN 5961-00-574-3936 is a Transistor, manufactured by Raytheon Company Dba Raytheon Co, classified under FSC 5961 (No Item Name Available). Status: active.

What are the part numbers for NSN 5961-00-574-3936?

NSN 5961-00-574-3936 has 6 cross-referenced part numbers: 18-144 (Raytheon Company), S3641 (Fairchild Semiconductor Corp), 2N3641 (Fairchild Industrial Products Company), 89018009 (Narda Holdings, Inc. Dba Narda-Miteq Div Narda-Miteq), 18-144 (Raytheon Company Div Corp) and 1 more.

What NSN replaces 5961-00-574-3936?

There are 9 known substitutes for 5961-00-574-3936: 3110-00-100-0285, 2530-00-453-5977, 5340-00-559-6128 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 18-144?

Key specifications for 18-144: Special Features: JUNCTION PATTERN ARRANGEMENT: NPN; Maximum Operating Temp Per Measurement Point: 125.0 CELSIUS JUNCTION DEGC; Internal Configuration: JUNCTION CONTACT; Power Rating Per Characteristic: 350.0 MILLIWATTS MAXIMUM COLLECTOR POWER DISSIPATION. 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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