PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

40539Transistor

Renesas Electronics America Inc · NSN 5961-00-139-1936 · FSC 5961 · No Item Name Available
Verified by PartsTable
NSN 5961-00-139-1936 — this item is cataloged by the U.S. Government under National Stock Number 5961-00-139-1936. Primary manufacturer part number: 40539.
Features
  • Transistor — FSC 5961
  • Electrode Internally-Electrically Connected to Case: COLLECTOR
  • Mounting Method: TERMINAL
  • Terminal Type and Quantity: 3 UNINSULATED WIRE LEAD
  • Semiconductor Material: SILICON
  • Features Provided: HERMETICALLY SEALED CASE
  • Power Rating Per Characteristic: 1.0 WATTS MAXIMUM COLLECTOR POWER DISSIPATION
  • Terminal Length: 1.500 INCHES MINIMUM IN
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transistor, cataloged under National Stock Number 5961-00-139-1936, 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 Renesas Electronics America Inc. 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. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5961-00-139-1936
Primary Part Number40539
Item NameTransistor
FSC / FSG5961 / 59 — No Item Name Available
ManufacturerRenesas Electronics America Inc
StatusACTIVE
Electrode Internally-Electrically Connected to CaseCOLLECTOR
Mounting MethodTERMINAL
Terminal Type and Quantity3 UNINSULATED WIRE LEAD
Semiconductor MaterialSILICON
Features ProvidedHERMETICALLY SEALED CASE
Power Rating Per Characteristic1.0 WATTS MAXIMUM COLLECTOR POWER DISSIPATION
Terminal Length1.500 INCHES MINIMUM IN
Unable to DecodeUNABLE TO DECODE
Voltage Rating in Volts Per Characteristic55.0 MAXIMUM BREAKDOWN VOLTAGE, COLLECTOR-TO-EMITTER, BASE OPEN AND 5.0 MAXIMUM BREAKDOWN VOLTAGE, EMITTER-TO-BASE, COLLECTOR OPEN
Current Rating Per Characteristic700.00 MILLIAMPERES MAXIMUM COLLECTOR CURRENT, DC
Terminal Circle Diameter0.200 INCHES NOMINAL IN
Internal ConfigurationJUNCTION CONTACT
Maximum Operating Temp Per Measurement Point200.0 CELSIUS JUNCTION DEGC
Overall Diameter0.370 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
9340-00-008-1820 INTERCHANGEABLE
Window,observation
3455-00-015-8418TABLE 15, 605 INTERCHANGEABLE
Cutter,milling,woodruff Keyseat
The American Society of Mechanical Engineers
5330-01-048-1649768107 INTERCHANGEABLE
Gasket
Parker-Hannifin Corporation Dba Pneutronics Div Composite Sealing Systems Division
Cross-Reference Index
Part NumberManufacturer
40539 PRIMARY Renesas Electronics America Inc (USA)
40539A Adelco Elektronik Gmbh (DEU)
40539 Adelco Elektronik Gmbh (DEU)
40539 Lacon Electronic Gmbh (DEU)
Related Parts
9340-00-008-1820INTERCHANGEABLE
WINDOW,OBSERVATION
3455-00-015-8418INTERCHANGEABLE
CUTTER,MILLING,WOODRUFF KEYSEAT
TABLE 15, 605
5330-01-048-1649INTERCHANGEABLE
GASKET
768107

Frequently Asked Questions

What is NSN 5961-00-139-1936?

NSN 5961-00-139-1936 is a Transistor, manufactured by Renesas Electronics America Inc, classified under FSC 5961 (No Item Name Available). Status: active.

What are the part numbers for NSN 5961-00-139-1936?

NSN 5961-00-139-1936 has 4 cross-referenced part numbers: 40539 (Renesas Electronics America Inc), 40539A (Adelco Elektronik Gmbh), 40539 (Adelco Elektronik Gmbh), 40539 (Lacon Electronic Gmbh).

What NSN replaces 5961-00-139-1936?

There are 3 known substitutes for 5961-00-139-1936: 9340-00-008-1820, 3455-00-015-8418, 5330-01-048-1649. Verify interchangeability with system specifications before substitution.

What are the specifications of 40539?

Key specifications for 40539: Overall Length: 0.260 INCHES MAXIMUM IN; Electrode Internally-Electrically Connected to Case: COLLECTOR; Mounting Method: TERMINAL; Special Features: JUNCTION PATTERN ARRANGEMENT: NPN. 16 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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