The Semiconductor Device,thyristor, cataloged under National Stock Number 5961-00-402-7744, 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 Reliance Comm/tec Corp Lorain Products Div. 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5961-00-402-7744 |
| Primary Part Number | 90WH |
| Item Name | Semiconductor Device,thyristor |
| FSC / FSG | 5961 / 59 — Semiconductor Devices and Associated Hardware |
| Manufacturer | Reliance Comm/tec Corp Lorain Products Div |
| Status | ACTIVE |
| Voltage Rating in Volts Per Characteristic | 300.0 MAXIMUM BREAKOVER VOLTAGE, DC |
| Maximum Operating Temp Per Measurement Point | 150.0 CELSIUS JUNCTION DEGC |
| Mounting Facility Quantity | 1 |
| Mounting Method | THREADED STUD(S) |
| Semiconductor Material | SILICON |
| Internal Configuration | JUNCTION CONTACT |
| Features Provided | HERMETICALLY SEALED CASE |
| Overall Width Across Flats | 1.031 INCHES MINIMUM AND 1.063 INCHES MAXIMUM IN |
| Nominal Thread Size | 0.500 INCHES IN |
| Current Rating Per Characteristic | 63.00 AMPERES MAXIMUM DRAIN CURRENT |
| Terminal Type and Quantity | 1 THREADED STUD AND 3 TAB, SOLDER LUG |
| Thread Series Designator | UNF |
| 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 |
|---|---|
| 90WH | Reliance Comm/tec Corp Lorain Products Div (USA) |
| Reference | Meaning |
|---|---|
| 2863-024 | 5/1 Secondary reference Reliance Comm/tec Corp Lorain Products Div |
| 37REH30 | 5/9 Secondary reference U.S. Government activity |
| 2515FFLAGTERM | 3/9 Design control — primary reference Westinghouse Electric Corp Semiconductor Div |
NSN 5961-00-402-7744 is a Semiconductor Device,thyristor, manufactured by Reliance Comm/tec Corp Lorain Products Div, classified under FSC 5961, Semiconductor Devices and Associated Hardware. Status: active.
NSN 5961-00-402-7744 has 1 manufacturer part number on file: 90WH (Reliance Comm/tec Corp Lorain Products Div).
1 possible match (shared part number, not a government interchangeability claim): 6850-01-577-8016. Verify interchangeability with system specifications before substitution.
Key specifications for 90WH: Voltage Rating in Volts Per Characteristic: 300.0 MAXIMUM BREAKOVER VOLTAGE, DC; Maximum Operating Temp Per Measurement Point: 150.0 CELSIUS JUNCTION DEGC; Mounting Facility Quantity: 1; Mounting Method: THREADED STUD(S). 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.