The Semiconductor Device,thyristor, cataloged under National Stock Number 5961-01-168-3350, 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 Grimes Aerospace Company. Government technical data includes 13 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5961-01-168-3350 |
| Primary Part Number | 55-1157-1 |
| Item Name | Semiconductor Device,thyristor |
| FSC / FSG | 5961 / 59 — Semiconductor Devices and Associated Hardware |
| Manufacturer | Grimes Aerospace Company |
| Status | ACTIVE |
| Voltage Rating in Volts Per Characteristic | 800.0 MAXIMUM REPETITIVE PEAK OFF-STATE VOLTAGE AND 800.0 MAXIMUM REPETITIVE PEAK REVERSE VOLTAGE AND 900.0 MAXIMUM NONREPETITIVE PEAK OFF-STATE VOLTAGE |
| Maximum Operating Temp Per Measurement Point | 125.0 CELSIUS AMBIENT AIR DEGC |
| Mounting Facility Quantity | 1 |
| Joint Electronic Device Engineering Council/jedec/case Outline Designation | T0-64 |
| Mounting Method | THREADED STUD(S) |
| Semiconductor Material | SILICON |
| Internal Configuration | JUNCTION CONTACT |
| Features Provided | HERMETICALLY SEALED CASE |
| Overall Width Across Flats | 0.562 INCHES MAXIMUM IN |
| Nominal Thread Size | 0.250 INCHES IN |
| Current Rating Per Characteristic | 35.00 AMPERES MAXIMUM ON-STATE CURRENT, DC |
| Terminal Type and Quantity | 2 TAB, SOLDER LUG AND 1 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 |
|---|---|
| 55-1157-1 | Semitronics Corp (USA) |
| 55-1157-1 PRIMARY | Grimes Aerospace Company (USA) |
| NSR353 | Microsemi Corp - Massachusetts (USA) |
| Reference | Meaning |
|---|---|
| C137NR217 | 5/9 Secondary reference Powerex, Inc. |
| 10133338 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
| C137NR217 | 5/9 Secondary reference Semitronics Corp |
| C137NR217 | 5/9 Secondary reference General Electric Co Semi-Conductor Products Dept |
NSN 5961-01-168-3350 is a Semiconductor Device,thyristor, manufactured by Grimes Aerospace Company, classified under FSC 5961, Semiconductor Devices and Associated Hardware. Status: active.
NSN 5961-01-168-3350 has 3 manufacturer part numbers on file: 55-1157-1 (Semitronics Corp), 55-1157-1 (Grimes Aerospace Company), NSR353 (Microsemi Corp - Massachusetts).
Key specifications for 55-1157-1: Voltage Rating in Volts Per Characteristic: 800.0 MAXIMUM REPETITIVE PEAK OFF-STATE VOLTAGE AND 800.0 MAXIMUM REPETITIVE PEAK REVERSE VOLTAGE AND 900.0 MAXIMUM NONREPETITIVE PEAK OFF-STATE VOLTAGE; Maximum Operating Temp Per Measurement Point: 125.0 CELSIUS AMBIENT AIR DEGC; Mounting Facility Quantity: 1; Joint Electronic Device Engineering Council/jedec/case Outline Designation: T0-64. 13 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.