The Semiconductor Device,thyristor, cataloged under National Stock Number 5961-01-065-8080, 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 12 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through both NSN and commercial part number lookups. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5961-01-065-8080 |
| Primary Part Number | C157M |
| 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 | 600.0 MAXIMUM REPETITIVE PEAK OFF-STATE VOLTAGE AND 600.0 MAXIMUM REPETITIVE PEAK REVERSE VOLTAGE AND 720.0 MAXIMUM NONREPETITIVE PEAK REVERSE VOLTAGE |
| Maximum Operating Temp Per Measurement Point | 125.0 CELSIUS JUNCTION DEGC |
| Mounting Facility Quantity | 1 |
| Overall Diameter | 0.840 INCHES MINIMUM AND 0.910 INCHES MAXIMUM IN |
| Mounting Method | THREADED STUD(S) |
| Semiconductor Material | SILICON |
| Internal Configuration | JUNCTION CONTACT |
| Nominal Thread Size | 0.500 INCHES IN |
| Current Rating Per Characteristic | 110.00 AMPERES MAXIMUM ON-STATE CURRENT, RMS TOTAL |
| Terminal Type and Quantity | 2 TAB, SOLDER LUG AND 1 THREADED STUD |
| Thread Series Designator | UNF |
| Power Rating Per Characteristic | 2.0 WATTS MAXIMUM AVERAGE GATE POWER-FORWARD |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| C157M PRIMARY | Powerex, Inc. (USA) |
| Reference | Meaning |
|---|---|
| T507-09-70-6-4AA | C/1 Advisory reference — outside the item-of-supply concept Westinghouse Electric Corp Semiconductor Div |
| C157M | 5/9 Secondary reference General Electric Co Semi-Conductor Products Dept |
| C157M | C/1 Advisory reference — outside the item-of-supply concept Ametek Advanced Industries, Inc. |
| S18CGF6B2 | 5/2 Secondary reference U.S. Government activity |
| 610-00069 | 5/9 Secondary reference Square D Co Epe/topaz |
| SKT70F06DT | 5/9 Secondary reference Semikron Intl Inc |
NSN 5961-01-065-8080 is a Semiconductor Device,thyristor, manufactured by Powerex, Inc., classified under FSC 5961, Semiconductor Devices and Associated Hardware. Status: active.
NSN 5961-01-065-8080 has 1 manufacturer part number on file: C157M (Powerex, Inc.).
2 possible matches (shared part number, not a government interchangeability claim): 5935-01-248-4919, 5977-01-462-6428. Verify interchangeability with system specifications before substitution.
Key specifications for C157M: Voltage Rating in Volts Per Characteristic: 600.0 MAXIMUM REPETITIVE PEAK OFF-STATE VOLTAGE AND 600.0 MAXIMUM REPETITIVE PEAK REVERSE VOLTAGE AND 720.0 MAXIMUM NONREPETITIVE PEAK REVERSE VOLTAGE; Maximum Operating Temp Per Measurement Point: 125.0 CELSIUS JUNCTION DEGC; Mounting Facility Quantity: 1; Overall Diameter: 0.840 INCHES MINIMUM AND 0.910 INCHES MAXIMUM IN. 12 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.
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.