The Semiconductor Device,thyristor, cataloged under National Stock Number 5961-01-254-5145, is classified within Federal Supply Class 5961 (Semiconductor Devices and Associated Hardware) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Powerex, Inc.. Government technical data includes 11 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5961-01-254-5145 |
| Primary Part Number | A190NX42 |
| Item Name | Semiconductor Device,thyristor |
| FSC / FSG | 5961 / 59 — Semiconductor Devices and Associated Hardware |
| Manufacturer | Powerex, Inc. |
| Status | ACTIVE |
| Voltage Rating in Volts Per Characteristic | 800.0 MAXIMUM REPETITIVE PEAK REVERSE VOLTAGE |
| Maximum Operating Temp Per Measurement Point | 200.0 CELSIUS JUNCTION DEGC |
| Mounting Facility Quantity | 1 |
| Mounting Method | THREADED STUD(S) |
| Semiconductor Material | SILICON |
| Overall Width Across Flats | 1.250 INCHES MAXIMUM IN |
| Nominal Thread Size | 0.750 INCHES IN |
| Current Rating Per Characteristic | 250.00 AMPERES MAXIMUM AVERAGE FORWARD CURRENT AVERAGED OVER A FULL 60-HZ CYCLE |
| Terminal Type and Quantity | 2 TAB, SOLDER LUG AND 1 THREADED STUD |
| Thread Series Designator | UNF |
| Electrode Internally-Electrically Connected to Case | ANODE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| A190NX42 PRIMARY | Powerex, Inc. (USA) |
| Reference | Meaning |
|---|---|
| A190NX42 | 5/9 Secondary reference Sure Power, Inc |
| A190N | 5/1 Secondary reference Powerex, Inc. |
NSN 5961-01-254-5145 is a Semiconductor Device,thyristor, manufactured by Powerex, Inc., classified under FSC 5961, Semiconductor Devices and Associated Hardware. Status: active.
NSN 5961-01-254-5145 has 1 manufacturer part number on file: A190NX42 (Powerex, Inc.).
Key specifications for A190NX42: Voltage Rating in Volts Per Characteristic: 800.0 MAXIMUM REPETITIVE PEAK REVERSE VOLTAGE; Maximum Operating Temp Per Measurement Point: 200.0 CELSIUS JUNCTION DEGC; Mounting Facility Quantity: 1; Mounting Method: THREADED STUD(S). 11 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
NSN 5961-01-254-5145 has DEMIL Code Q. Demilitarization may be required before disposal or transfer to non-military entities.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.