PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

C20FSemiconductor Device,thyristor

Transistor Devices Inc Div Astrodyne Tdi High Power Business Unit · NSN 5961-00-929-2394 · FSC 5961 · No Item Name Available
Verified by PartsTable
NSN 5961-00-929-2394 — this item is cataloged by the U.S. Government under National Stock Number 5961-00-929-2394. Primary manufacturer part number: C20F.
Features
  • Semiconductor Device,thyristor — FSC 5961
  • Power Rating Per Characteristic: 500.0 MILLIWATTS MAXIMUM PEAK GATE POWER DISSIPATION
  • Thread Series Designator: UNF
  • Semiconductor Material: SILICON
  • Overall Width Across Flats: 0.557 INCHES NOMINAL IN
  • Current Rating Per Characteristic: 80.00 AMPERES MAXIMUM AVERAGE FORWARD CURRENT AVERAGED OVER A FULL 60-HZ CYCLE
  • Voltage Rating in Volts Per Characteristic: 200.0 MAXIMUM BREAKOVER VOLTAGE, DC
  • Nominal Thread Size: 0.250 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 5961-00-929-2394, 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 Transistor Devices Inc Div Astrodyne Tdi High Power Business Unit. Government technical data includes 11 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5961-00-929-2394
Primary Part NumberC20F
Item NameSemiconductor Device,thyristor
FSC / FSG5961 / 59 — No Item Name Available
ManufacturerTransistor Devices Inc Div Astrodyne Tdi High Power Business Unit
StatusACTIVE
Power Rating Per Characteristic500.0 MILLIWATTS MAXIMUM PEAK GATE POWER DISSIPATION
Thread Series DesignatorUNF
Semiconductor MaterialSILICON
Overall Width Across Flats0.557 INCHES NOMINAL IN
Current Rating Per Characteristic80.00 AMPERES MAXIMUM AVERAGE FORWARD CURRENT AVERAGED OVER A FULL 60-HZ CYCLE
Voltage Rating in Volts Per Characteristic200.0 MAXIMUM BREAKOVER VOLTAGE, DC
Nominal Thread Size0.250 INCHES IN
Maximum Operating Temp Per Measurement Point100.0 CELSIUS JUNCTION DEGC
Mounting MethodTHREADED STUD(S)
Mounting Facility Quantity1
Terminal Type and Quantity2 TAB, SOLDER LUG AND 1 THREADED STUD
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
5961-01-243-35081884-0032 INTERCHANGEABLE
Semiconductor Device,thyristor
Avago Technologies Us Inc Div Avago Technologies
5996-01-254-9503C20 INTERCHANGEABLE
Amplifier,audio Frequency
Bogen Communications Inc
4820-01-308-66839900-445 INTERCHANGEABLE
Valve,regulating,fluid Pressure
Woodward, Inc.
1510-01-342-5139C-20F INTERCHANGEABLE
Airplane,utility
Gulfstream Aerospace Corporation Div Government Contracts
4820-01-650-5477C20B INTERCHANGEABLE
Valve,check
Deltrol Corp Deltrol Fluid Products Div
Cross-Reference Index
Part NumberManufacturer
C20F Transistor Devices Inc Div Astrodyne Tdi High Power Business Unit (USA)
9900445 International Business Machines Corp Parts Order Center Dept E - 54 (USA)
C220B General Electric Co Semi-Conductor Products Dept Power Components Opn (USA)
C20B General Electric Co Semi-Conductor Products Dept Power Components Opn (USA)
9900445 International Business Machines Corporation Dba IBM (USA)
Related Parts
5961-01-243-3508INTERCHANGEABLE
SEMICONDUCTOR DEVICE,THYRISTOR
1884-0032
5996-01-254-9503INTERCHANGEABLE
AMPLIFIER,AUDIO FREQUENCY
C20
4820-01-308-6683INTERCHANGEABLE
VALVE,REGULATING,FLUID PRESSURE
9900-445
1510-01-342-5139INTERCHANGEABLE
AIRPLANE,UTILITY
C-20F
4820-01-650-5477INTERCHANGEABLE
VALVE,CHECK
C20B

Frequently Asked Questions

What is NSN 5961-00-929-2394?

NSN 5961-00-929-2394 is a Semiconductor Device,thyristor, manufactured by Transistor Devices Inc Div Astrodyne Tdi High Power Business Unit, classified under FSC 5961 (No Item Name Available). Status: active.

What are the part numbers for NSN 5961-00-929-2394?

NSN 5961-00-929-2394 has 5 cross-referenced part numbers: C20F (Transistor Devices Inc Div Astrodyne Tdi High Power Business Unit), 9900445 (International Business Machines Corp Parts Order Center Dept E - 54), C220B (General Electric Co Semi-Conductor Products Dept Power Components Opn), C20B (General Electric Co Semi-Conductor Products Dept Power Components Opn), 9900445 (International Business Machines Corporation Dba IBM).

What NSN replaces 5961-00-929-2394?

There are 5 known substitutes for 5961-00-929-2394: 5961-01-243-3508, 5996-01-254-9503, 4820-01-308-6683 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of C20F?

Key specifications for C20F: Power Rating Per Characteristic: 500.0 MILLIWATTS MAXIMUM PEAK GATE POWER DISSIPATION; Thread Series Designator: UNF; Semiconductor Material: SILICON; Overall Width Across Flats: 0.557 INCHES NOMINAL IN. 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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