The Semiconductor Device,diode, cataloged under National Stock Number 5961-01-522-9937, 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 10 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5961-01-522-9937 |
| Primary Part Number | R5031218FSZT-PRX |
| Item Name | Semiconductor Device,diode |
| FSC / FSG | 5961 / 59 — Semiconductor Devices and Associated Hardware |
| Manufacturer | Powerex, Inc. |
| Status | ACTIVE |
| Voltage Rating in Volts Per Characteristic | 1400.0 MAXIMUM REPETITIVE PEAK REVERSE VOLTAGE |
| Mounting Facility Quantity | 2 |
| Mounting Method | THREADED STUD(S) |
| Nominal Thread Size | 0.250 INCHES AND 0.375 INCHES IN |
| Current Rating Per Characteristic | 175.00 AMPERES MAXIMUM FORWARD CURRENT, AVERAGE |
| Thread Quantity Per Inch | 28 AND 24 |
| Material | SILICON SEMICONDUCTOR |
| Material | CERAMIC ENCLOSURE |
| Terminal Type and Quantity | 2 THREADED STUD |
| 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 |
|---|---|
| R5031218FSZT-PRX PRIMARY | Powerex, Inc. (USA) |
NSN 5961-01-522-9937 is a Semiconductor Device,diode, manufactured by Powerex, Inc., classified under FSC 5961, Semiconductor Devices and Associated Hardware. Status: active.
NSN 5961-01-522-9937 has 1 manufacturer part number on file: R5031218FSZT-PRX (Powerex, Inc.).
Key specifications for R5031218FSZT-PRX: Voltage Rating in Volts Per Characteristic: 1400.0 MAXIMUM REPETITIVE PEAK REVERSE VOLTAGE; Mounting Facility Quantity: 2; Mounting Method: THREADED STUD(S); Overall Length: 2.740 INCHES NOMINAL IN. 10 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.