The Semiconductor Device,thyristor, cataloged under National Stock Number 5961-01-139-2173, 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 8 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5961-01-139-2173 |
| Primary Part Number | C398E |
| 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 | 500.0 MAXIMUM OFF-STATE VOLTAGE, RMS TOTAL |
| Maximum Operating Temp Per Measurement Point | 125.0 CELSIUS JUNCTION DEGC |
| Overall Diameter | 2.150 INCHES MAXIMUM IN |
| Mounting Method | PRESS FIT |
| Semiconductor Material | SILICON |
| Features Provided | HERMETICALLY SEALED CASE |
| Current Rating Per Characteristic | 700.00 MILLIAMPERES MAXIMUM ON-STATE CURRENT, DC |
| Terminal Type and Quantity | 1 CASE AND 2 INSULATED WIRE LEAD W/TERMINAL LUG |
| 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 |
|---|---|
| C398E PRIMARY | Powerex, Inc. (USA) |
| Reference | Meaning |
|---|---|
| SKT510F06DT | 5/9 Secondary reference Semikron Intl Inc |
| C398E | 5/9 Secondary reference General Electric Co Semi-Conductor Products Dept Power Components Opn |
| C398E | 5/2 Secondary reference U.S. Government activity |
NSN 5961-01-139-2173 is a Semiconductor Device,thyristor, manufactured by Powerex, Inc., classified under FSC 5961, Semiconductor Devices and Associated Hardware. Status: active.
NSN 5961-01-139-2173 has 1 manufacturer part number on file: C398E (Powerex, Inc.).
Key specifications for C398E: Voltage Rating in Volts Per Characteristic: 500.0 MAXIMUM OFF-STATE VOLTAGE, RMS TOTAL; Maximum Operating Temp Per Measurement Point: 125.0 CELSIUS JUNCTION DEGC; Overall Diameter: 2.150 INCHES MAXIMUM IN; Mounting Method: PRESS FIT. 8 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.