PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

40242Transistor

Osi Optoelectronics, Inc Dba Semicoa · NSN 5961-00-345-7735 · FSC 5961 · No Item Name Available
Verified by PartsTable
NSN 5961-00-345-7735 — this item is cataloged by the U.S. Government under National Stock Number 5961-00-345-7735. Primary manufacturer part number: 40242.
Features
  • Transistor — FSC 5961
  • Power Rating Per Characteristic: 180.0 MILLIWATTS MAXIMUM COLLECTOR POWER DISSIPATION
  • Terminal Type and Quantity: 4 UNINSULATED WIRE LEAD
  • Internal Configuration: JUNCTION CONTACT
  • Voltage Rating in Volts Per Characteristic: 45.0 MAXIMUM BREAKDOWN VOLTAGE, COLLECTOR-TO-BASE, EMITTER OPEN AND 45.0 MAXIMUM BREAKDOWN VOLTAGE, COLLECTOR-TO-EMITTER, BASE OPEN AND 4.5 MAXIMUM BREAKDOWN VOLTAGE, EMITTER-TO-BASE, COLLECTOR OPEN
  • Semiconductor Material: SILICON
  • Current Rating Per Characteristic: 50.00 MILLIAMPERES MAXIMUM COLLECTOR CURRENT, DC
  • 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 5961-00-345-7735, 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 Osi Optoelectronics, Inc Dba Semicoa. Government technical data includes 12 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5961-00-345-7735
Primary Part Number40242
Item NameTransistor
FSC / FSG5961 / 59 — No Item Name Available
ManufacturerOsi Optoelectronics, Inc Dba Semicoa
StatusACTIVE
Power Rating Per Characteristic180.0 MILLIWATTS MAXIMUM COLLECTOR POWER DISSIPATION
Terminal Type and Quantity4 UNINSULATED WIRE LEAD
Internal ConfigurationJUNCTION CONTACT
Voltage Rating in Volts Per Characteristic45.0 MAXIMUM BREAKDOWN VOLTAGE, COLLECTOR-TO-BASE, EMITTER OPEN AND 45.0 MAXIMUM BREAKDOWN VOLTAGE, COLLECTOR-TO-EMITTER, BASE OPEN AND 4.5 MAXIMUM BREAKDOWN VOLTAGE, EMITTER-TO-BASE, COLLECTOR OPEN
Semiconductor MaterialSILICON
Current Rating Per Characteristic50.00 MILLIAMPERES MAXIMUM COLLECTOR CURRENT, DC
Mounting MethodTERMINAL
Terminal Length0.500 INCHES MINIMUM IN
Features ProvidedHERMETICALLY SEALED CASE
Terminal Circle Diameter0.100 INCHES NOMINAL IN
Maximum Operating Temp Per Measurement Point200.0 CELSIUS JUNCTION DEGC
Overall Diameter0.219 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
3110-00-227-20321108725 INTERCHANGEABLE
Bearing,ball,annular
Chrysler Realty Company Llc Dba Daimler Chrysler
5330-00-850-7910BA5058 INTERCHANGEABLE
Gasket
Stillman Seal Corporation Div Stillman Seal Corperation
5930-01-117-4909800-540-1-2-15 HI-TEMP-BATTLE-SH INTERCHANGEABLE
Guard,switch
Safran Electronics & Defense, Avionics Usa, Llc
9390-01-134-810640-242 INTERCHANGEABLE
Nonmetallic Special Shaped Secti
Airlite Plastics Co Div Airlite Plastics Co. Pa Division
5330-01-322-282740242 INTERCHANGEABLE
Seal,plain Encased
Sullair Corp
2640-01-622-353240242 INTERCHANGEABLE
Valve,pneumatic Tire
Hutchinson Industries, Inc Div Defense and Industry
6105-01-632-552840242 INTERCHANGEABLE
Nrp,motor,lso Actua
Exlar Corporation
Cross-Reference Index
Part NumberManufacturer
40242 Renesas Electronics America Inc (USA)
40242 PRIMARY Osi Optoelectronics, Inc Dba Semicoa (USA)
Related Parts
3110-00-227-2032INTERCHANGEABLE
BEARING,BALL,ANNULAR
1108725
5330-00-850-7910INTERCHANGEABLE
GASKET
BA5058
5930-01-117-4909INTERCHANGEABLE
GUARD,SWITCH
800-540-1-2-15 HI-TEMP-BATTLE-SH
9390-01-134-8106INTERCHANGEABLE
NONMETALLIC SPECIAL SHAPED SECTI
40-242
5330-01-322-2827INTERCHANGEABLE
SEAL,PLAIN ENCASED
40242
2640-01-622-3532INTERCHANGEABLE
VALVE,PNEUMATIC TIRE
40242
6105-01-632-5528INTERCHANGEABLE
NRP,MOTOR,LSO ACTUA
40242

Frequently Asked Questions

What is NSN 5961-00-345-7735?

NSN 5961-00-345-7735 is a Transistor, manufactured by Osi Optoelectronics, Inc Dba Semicoa, classified under FSC 5961 (No Item Name Available). Status: active.

What are the part numbers for NSN 5961-00-345-7735?

NSN 5961-00-345-7735 has 2 cross-referenced part numbers: 40242 (Renesas Electronics America Inc), 40242 (Osi Optoelectronics, Inc Dba Semicoa).

What NSN replaces 5961-00-345-7735?

There are 7 known substitutes for 5961-00-345-7735: 3110-00-227-2032, 5330-00-850-7910, 5930-01-117-4909 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 40242?

Key specifications for 40242: Power Rating Per Characteristic: 180.0 MILLIWATTS MAXIMUM COLLECTOR POWER DISSIPATION; Terminal Type and Quantity: 4 UNINSULATED WIRE LEAD; Internal Configuration: JUNCTION CONTACT; Voltage Rating in Volts Per Characteristic: 45.0 MAXIMUM BREAKDOWN VOLTAGE, COLLECTOR-TO-BASE, EMITTER OPEN AND 45.0 MAXIMUM BREAKDOWN VOLTAGE, COLLECTOR-TO-EMITTER, BASE OPEN AND 4.5 MAXIMUM BREAKDOWN VOLTAGE, EMITTER-TO-BASE, COLLECTOR OPEN. 14 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