PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

18-149-4Transistor

Raytheon Company Dba Raytheon Co · NSN 5961-00-163-3854 · FSC 5961 · No Item Name Available
Verified by PartsTable
NSN 5961-00-163-3854 — this item is cataloged by the U.S. Government under National Stock Number 5961-00-163-3854. Primary manufacturer part number: 18-149-4.
Features
  • Transistor — FSC 5961
  • Electrode Internally-Electrically Connected to Case: COLLECTOR
  • Power Rating Per Characteristic: 5.0 WATTS MAXIMUM COLLECTOR POWER DISSIPATION
  • Features Provided: HERMETICALLY SEALED CASE
  • Maximum Operating Temp Per Measurement Point: 200.0 CELSIUS JUNCTION DEGC
  • Internal Junction Configuration: PNP
  • Mounting Method: TERMINAL
  • Semiconductor Material: SILICON
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transistor, cataloged under National Stock Number 5961-00-163-3854, 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 14 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. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5961-00-163-3854
Primary Part Number18-149-4
Item NameTransistor
FSC / FSG5961 / 59 — No Item Name Available
ManufacturerRaytheon Company Dba Raytheon Co
StatusACTIVE
Electrode Internally-Electrically Connected to CaseCOLLECTOR
Power Rating Per Characteristic5.0 WATTS MAXIMUM COLLECTOR POWER DISSIPATION
Features ProvidedHERMETICALLY SEALED CASE
Maximum Operating Temp Per Measurement Point200.0 CELSIUS JUNCTION DEGC
Internal Junction ConfigurationPNP
Mounting MethodTERMINAL
Semiconductor MaterialSILICON
Overall Diameter0.370 INCHES NOMINAL IN
Internal ConfigurationJUNCTION CONTACT
Terminal Type and Quantity3 UNINSULATED WIRE LEAD
Terminal Length1.500 INCHES MINIMUM IN
Current Rating Per Characteristic0.70 AMPERES MAXIMUM COLLECTOR CURRENT, DC
Terminal Circle Diameter0.200 INCHES NOMINAL IN
Voltage Rating in Volts Per Characteristic70.0 MAXIMUM BREAKDOWN VOLTAGE, COLLECTOR-TO-EMITTER, BASE OPEN AND 4.0 MAXIMUM BREAKDOWN VOLTAGE, EMITTER-TO-BASE, COLLECTOR OPEN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 9
5995-00-077-216267559 INTERCHANGEABLE
Cable Assembly,bran
Northrop Grumman Systems Corporation Dba Aerospace Systems Div Aeronautics Systems
5305-00-208-3926 INTERCHANGEABLE
Screw,cap,socket Head
6515-00-364-280011-381-11 INTERCHANGEABLE
Scissors,enucleation
Anmuth Medical International Llc
3040-00-711-5013 INTERCHANGEABLE
Shaft,adapter
5961-00-931-8259 INTERCHANGEABLE
Transistor
5961-01-039-0541 INTERCHANGEABLE
Transistor
5365-01-110-277561598 INTERCHANGEABLE
Bushing,internal
Parker Hannifin Corporation Div Hydraulic Systems Division
5961-01-112-4732 INTERCHANGEABLE
Transistor
4730-01-328-1795 INTERCHANGEABLE
Plug,pipe
Cross-Reference Index
Part NumberManufacturer
18-149-4 PRIMARY Raytheon Company Dba Raytheon Co (USA)
40362 Renesas Electronics America Inc (USA)
18-149-4 Raytheon Company Div Corp (USA)
61598 Renesas Electronics America Inc (USA)
Related Parts
5995-00-077-2162INTERCHANGEABLE
CABLE ASSEMBLY,BRAN
67559
5305-00-208-3926INTERCHANGEABLE
SCREW,CAP,SOCKET HEAD
6515-00-364-2800INTERCHANGEABLE
SCISSORS,ENUCLEATION
11-381-11
3040-00-711-5013INTERCHANGEABLE
SHAFT,ADAPTER
5961-00-931-8259INTERCHANGEABLE
TRANSISTOR
5961-01-039-0541INTERCHANGEABLE
TRANSISTOR
5365-01-110-2775INTERCHANGEABLE
BUSHING,INTERNAL
61598
5961-01-112-4732INTERCHANGEABLE
TRANSISTOR
4730-01-328-1795INTERCHANGEABLE
PLUG,PIPE

Frequently Asked Questions

What is NSN 5961-00-163-3854?

NSN 5961-00-163-3854 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 5961-00-163-3854?

NSN 5961-00-163-3854 has 4 cross-referenced part numbers: 18-149-4 (Raytheon Company Dba Raytheon Co), 40362 (Renesas Electronics America Inc), 18-149-4 (Raytheon Company Div Corp), 61598 (Renesas Electronics America Inc).

What NSN replaces 5961-00-163-3854?

There are 9 known substitutes for 5961-00-163-3854: 5995-00-077-2162, 5305-00-208-3926, 6515-00-364-2800 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 18-149-4?

Key specifications for 18-149-4: Electrode Internally-Electrically Connected to Case: COLLECTOR; Power Rating Per Characteristic: 5.0 WATTS MAXIMUM COLLECTOR POWER DISSIPATION; Features Provided: HERMETICALLY SEALED CASE; Maximum Operating Temp Per Measurement Point: 200.0 CELSIUS JUNCTION DEGC. 15 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com