PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

209DSemiconductor Device,thyristor

Westinghouse Electric Corp Semiconductor Div · NSN 5961-00-999-3654 · FSC 5961 · No Item Name Available
Verified by PartsTable
NSN 5961-00-999-3654 — this item is cataloged by the U.S. Government under National Stock Number 5961-00-999-3654. Primary manufacturer part number: 209D.
Features
  • Semiconductor Device,thyristor — FSC 5961
  • Terminal Type and Quantity: 1 THREADED STUD AND 2 TAB, SOLDER LUG
  • Thread Series Designator: UNF
  • Features Provided: HERMETICALLY SEALED CASE
  • Voltage Rating in Volts Per Characteristic: 240.0 MAXIMUM REVERSE VOLTAGE, PEAK
  • Internal Configuration: JUNCTION CONTACT
  • Overall Width Across Flats: 1.062 INCHES MAXIMUM IN
  • Nominal Thread Size: 0.500 INCHES IN
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Semiconductor Device,thyristor, cataloged under National Stock Number 5961-00-999-3654, 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 Westinghouse Electric Corp Semiconductor Div. Government technical data includes 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5961-00-999-3654
Primary Part Number209D
Item NameSemiconductor Device,thyristor
FSC / FSG5961 / 59 — No Item Name Available
ManufacturerWestinghouse Electric Corp Semiconductor Div
StatusACTIVE
Terminal Type and Quantity1 THREADED STUD AND 2 TAB, SOLDER LUG
Thread Series DesignatorUNF
Features ProvidedHERMETICALLY SEALED CASE
Voltage Rating in Volts Per Characteristic240.0 MAXIMUM REVERSE VOLTAGE, PEAK
Internal ConfigurationJUNCTION CONTACT
Overall Width Across Flats1.062 INCHES MAXIMUM IN
Nominal Thread Size0.500 INCHES IN
Mounting MethodTHREADED STUD(S)
Mounting Facility Quantity1
Semiconductor MaterialSILICON
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
7050-00-169-9134 INTERCHANGEABLE
Decoder,digital
3110-00-554-30816209Z INTERCHANGEABLE
Bearing,ball,annular
Skf Usa Inc.
Cross-Reference Index
Part NumberManufacturer
209D Westinghouse Electric Corp Semiconductor Div (USA)
Related Parts
7050-00-169-9134INTERCHANGEABLE
DECODER,DIGITAL
3110-00-554-3081INTERCHANGEABLE
BEARING,BALL,ANNULAR
6209Z

Frequently Asked Questions

What is NSN 5961-00-999-3654?

NSN 5961-00-999-3654 is a Semiconductor Device,thyristor, manufactured by Westinghouse Electric Corp Semiconductor Div, classified under FSC 5961 (No Item Name Available). Status: active.

What are the part numbers for NSN 5961-00-999-3654?

NSN 5961-00-999-3654 has 1 cross-referenced part number: 209D (Westinghouse Electric Corp Semiconductor Div).

What NSN replaces 5961-00-999-3654?

There are 2 known substitutes for 5961-00-999-3654: 7050-00-169-9134, 3110-00-554-3081. Verify interchangeability with system specifications before substitution.

What are the specifications of 209D?

Key specifications for 209D: Terminal Type and Quantity: 1 THREADED STUD AND 2 TAB, SOLDER LUG; Thread Series Designator: UNF; Features Provided: HERMETICALLY SEALED CASE; Voltage Rating in Volts Per Characteristic: 240.0 MAXIMUM REVERSE VOLTAGE, PEAK. 12 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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