The Semiconductor Device,thyristor, cataloged under National Stock Number 5961-01-347-4135, 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 Semitronics Corp. Government technical data includes 14 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. 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 | 5961-01-347-4135 |
| Primary Part Number | T4120M |
| Item Name | Semiconductor Device,thyristor |
| FSC / FSG | 5961 / 59 — Semiconductor Devices and Associated Hardware |
| Manufacturer | Semitronics Corp |
| Status | ACTIVE |
| Voltage Rating in Volts Per Characteristic | 600.0 MAXIMUM REPETITIVE PEAK OFF-STATE VOLTAGE |
| Maximum Operating Temp Per Measurement Point | 100.0 CELSIUS AMBIENT AIR 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 | 0.561 INCHES MINIMUM IN |
| Nominal Thread Size | 0.250 INCHES IN |
| Current Rating Per Characteristic | 100.00 AMPERES MAXIMUM PEAK NONREPETITIVE SURGE CURRENT |
| Function for Which Designed | BIDIRECTIONAL |
| Terminal Type and Quantity | 3 TAB, SOLDER LUG |
| Thread Series Designator | UNF |
| Power Rating Per Characteristic | 16.0 WATTS MAXIMUM PEAK GATE POWER DISSIPATION |
| 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 |
|---|---|
| T4120M PRIMARY | Semitronics Corp (USA) |
NSN 5961-01-347-4135 is a Semiconductor Device,thyristor, manufactured by Semitronics Corp, classified under FSC 5961, Semiconductor Devices and Associated Hardware. Status: active.
NSN 5961-01-347-4135 has 1 manufacturer part number on file: T4120M (Semitronics Corp).
1 possible match (shared part number, not a government interchangeability claim): 5961-01-371-6094. Verify interchangeability with system specifications before substitution.
Key specifications for T4120M: Voltage Rating in Volts Per Characteristic: 600.0 MAXIMUM REPETITIVE PEAK OFF-STATE VOLTAGE; Maximum Operating Temp Per Measurement Point: 100.0 CELSIUS AMBIENT AIR DEGC; Mounting Facility Quantity: 1; Mounting Method: THREADED STUD(S). 14 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.