PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

YD405012-01Transistor

G E C Marconi Communications Ltd · NSN 5961-00-791-3655 · FSC 5961 · No Item Name Available
Verified by PartsTable
NSN 5961-00-791-3655 — this item is cataloged by the U.S. Government under National Stock Number 5961-00-791-3655. Primary manufacturer part number: YD405012-01.
Features
  • Transistor — FSC 5961
  • Terminal Circle Diameter: 0.100 INCHES NOMINAL IN
  • Power Rating Per Characteristic: 180.0 MILLIWATTS MAXIMUM COLLECTOR POWER DISSIPATION
  • Semiconductor Material: SILICON
  • Mounting Method: TERMINAL
  • Current Rating Per Characteristic: 50.00 MILLIAMPERES MAXIMUM COLLECTOR CURRENT, DC
  • Overall Diameter: 0.230 INCHES MAXIMUM IN
  • Voltage Rating in Volts Per Characteristic: 45.0 MAXIMUM BREAKDOWN VOLTAGE, COLLECTOR-TO-BASE, EMITTER OPEN AND 4.5 MAXIMUM BREAKDOWN VOLTAGE, EMITTER-TO-BASE, COLLECTOR OPEN
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transistor, cataloged under National Stock Number 5961-00-791-3655, 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 G E C Marconi Communications Ltd. Government technical data includes 13 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5961-00-791-3655
Primary Part NumberYD405012-01
Item NameTransistor
FSC / FSG5961 / 59 — No Item Name Available
ManufacturerG E C Marconi Communications Ltd
StatusACTIVE
Terminal Circle Diameter0.100 INCHES NOMINAL IN
Power Rating Per Characteristic180.0 MILLIWATTS MAXIMUM COLLECTOR POWER DISSIPATION
Semiconductor MaterialSILICON
Mounting MethodTERMINAL
Current Rating Per Characteristic50.00 MILLIAMPERES MAXIMUM COLLECTOR CURRENT, DC
Overall Diameter0.230 INCHES MAXIMUM IN
Voltage Rating in Volts Per Characteristic45.0 MAXIMUM BREAKDOWN VOLTAGE, COLLECTOR-TO-BASE, EMITTER OPEN AND 4.5 MAXIMUM BREAKDOWN VOLTAGE, EMITTER-TO-BASE, COLLECTOR OPEN
Features ProvidedHERMETICALLY SEALED CASE
Internal Junction ConfigurationNPN
Terminal Type and Quantity4 UNINSULATED WIRE LEAD
Maximum Operating Temp Per Measurement Point200.0 CELSIUS JUNCTION DEGC
Terminal Length0.500 INCHES MINIMUM IN
Internal ConfigurationJUNCTION CONTACT
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
3810-00-006-6258F23222 INTERCHANGEABLE
Cylinder
Federal Mogul Corp Sub Wagner Brake Moog Automotive Div
5330-00-171-858140235 INTERCHANGEABLE
Seal,plain Encased
Morris Material Handling, Inc.
7710-00-205-1429 INTERCHANGEABLE
Drum,bass
5950-00-532-1386 INTERCHANGEABLE
Transformer,power
5950-00-600-084072-2609 INTERCHANGEABLE
Transformer,power
Department of Defense Project Manager-Mobile Electric Power
6340-00-761-951260-215-8 INTERCHANGEABLE
Flame Detector Asse
Kidde Technologies, Inc Div Kidde Aerospace and Defense
5962-01-078-574140235 INTERCHANGEABLE
Microcircuit
Raytheon Company Div Rmd Strategic
6645-01-148-3613 INTERCHANGEABLE
Timer,interval
Cross-Reference Index
Part NumberManufacturer
YD405012-01 G E C Marconi Communications Ltd (GBR)
YD405012-01 Leonardo Mw Ltd (GBR)
40235 Renesas Electronics America Inc (USA)
847102-0030 Diamond Electronics Inc (USA)
K193 Kay Elemetrics Corporation (USA)
Related Parts
3810-00-006-6258INTERCHANGEABLE
CYLINDER
F23222
5330-00-171-8581INTERCHANGEABLE
SEAL,PLAIN ENCASED
40235
7710-00-205-1429INTERCHANGEABLE
DRUM,BASS
5950-00-532-1386INTERCHANGEABLE
TRANSFORMER,POWER
5950-00-600-0840INTERCHANGEABLE
TRANSFORMER,POWER
72-2609
6340-00-761-9512INTERCHANGEABLE
FLAME DETECTOR ASSE
60-215-8
5962-01-078-5741INTERCHANGEABLE
MICROCIRCUIT
40235
6645-01-148-3613INTERCHANGEABLE
TIMER,INTERVAL

Frequently Asked Questions

What is NSN 5961-00-791-3655?

NSN 5961-00-791-3655 is a Transistor, manufactured by G E C Marconi Communications Ltd, classified under FSC 5961 (No Item Name Available). Status: active.

What are the part numbers for NSN 5961-00-791-3655?

NSN 5961-00-791-3655 has 5 cross-referenced part numbers: YD405012-01 (G E C Marconi Communications Ltd), YD405012-01 (Leonardo Mw Ltd), 40235 (Renesas Electronics America Inc), 847102-0030 (Diamond Electronics Inc), K193 (Kay Elemetrics Corporation).

What NSN replaces 5961-00-791-3655?

There are 8 known substitutes for 5961-00-791-3655: 3810-00-006-6258, 5330-00-171-8581, 7710-00-205-1429 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of YD405012-01?

Key specifications for YD405012-01: Terminal Circle Diameter: 0.100 INCHES NOMINAL IN; Power Rating Per Characteristic: 180.0 MILLIWATTS MAXIMUM COLLECTOR POWER DISSIPATION; Semiconductor Material: SILICON; Mounting Method: TERMINAL. 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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