The Semiconductor Device,thyristor, cataloged under National Stock Number 5961-01-211-2643, 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 Semikron Intl 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5961-01-211-2643 |
| Primary Part Number | SKKH91/12D |
| Item Name | Semiconductor Device,thyristor |
| FSC / FSG | 5961 / 59 — Semiconductor Devices and Associated Hardware |
| Manufacturer | Semikron Intl Inc |
| Status | ACTIVE |
| Voltage Rating in Volts Per Characteristic | 1300.0 MAXIMUM NONREPETITIVE PEAK REVERSE VOLTAGE AND 1200.0 MAXIMUM REPETITIVE PEAK REVERSE VOLTAGE |
| Maximum Operating Temp Per Measurement Point | 125.0 CELSIUS JUNCTION DEGC |
| Mounting Method | PRESS FIT |
| Semiconductor Material | SILICON |
| Internal Configuration | JUNCTION CONTACT |
| Features Provided | HERMETICALLY SEALED CASE |
| Current Rating Per Characteristic | 90.00 AMPERES MAXIMUM ON-STATE CURRENT, AVERAGE AND 145.00 AMPERES MAXIMUM REPETITIVE PEAK ON-STATE CURRENT AND 160.00 AMPERES MAXIMUM DARK CURRENT |
| Terminal Type and Quantity | 3 BINDING POST |
| 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 |
|---|---|
| SKKH91/12D PRIMARY | Semikron Intl Inc (USA) |
| Reference | Meaning |
|---|---|
| SKKH 90-12 | 5/9 Secondary reference Semikron Intl Inc |
| 2N6646 | 5/1 Secondary reference Semikron Intl Inc |
NSN 5961-01-211-2643 is a Semiconductor Device,thyristor, manufactured by Semikron Intl Inc, classified under FSC 5961, Semiconductor Devices and Associated Hardware. Status: active.
NSN 5961-01-211-2643 has 1 manufacturer part number on file: SKKH91/12D (Semikron Intl Inc).
Key specifications for SKKH91/12D: Overall Height: 1.417 INCHES NOMINAL IN; Voltage Rating in Volts Per Characteristic: 1300.0 MAXIMUM NONREPETITIVE PEAK REVERSE VOLTAGE AND 1200.0 MAXIMUM REPETITIVE PEAK REVERSE VOLTAGE; Maximum Operating Temp Per Measurement Point: 125.0 CELSIUS JUNCTION DEGC; 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.