The Semiconductor Device Set, cataloged under National Stock Number 5961-01-077-8571, is classified within Federal Supply Class 5961 (Semiconductor Devices and Associated Hardware) of the Electrical and Electronic Equipment Components group. Government technical data includes 14 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5961-01-077-8571 |
| Item Name | Semiconductor Device Set |
| FSC / FSG | 5961 / 59 — Semiconductor Devices and Associated Hardware |
| Status | ACTIVE |
| Voltage Rating in Volts Per Characteristic | 40.0 MAXIMUM BREAKDOWN VOLTAGE, COLLECTOR-TO-EMITTER, BASE OPEN ALL TRANSISTOR |
| Mounting Facility Quantity | 1 ALL TRANSISTOR |
| Joint Electronic Device Engineering Council/jedec/case Outline Designation | TO-117 ALL TRANSISTOR |
| Component Function Relationship | MATCHED |
| Mounting Method | THREADED STUD(S) ALL TRANSISTOR |
| Internal Junction Configuration | NPN ALL TRANSISTOR |
| Semiconductor Material | SILICON ALL TRANSISTOR |
| Component Name and Quantity | 2 TRANSISTOR |
| Internal Configuration | JUNCTION CONTACT ALL TRANSISTOR |
| Features Provided | HERMETICALLY SEALED CASE |
| Nominal Thread Size | 0.164 INCHES ALL TRANSISTOR IN |
| Current Rating Per Characteristic | 4.00 AMPERES MAXIMUM COLLECTOR CURRENT, DC ALL TRANSISTOR |
| Terminal Type and Quantity | 4 RIBBON ALL TRANSISTOR |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) ALL TRANSISTOR |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| SM-A-618677-1 | 3/2 Design control — primary reference U.S. Government activity |
| 2N4128 | 5/1 Secondary reference Semitronics Corp |
| PKT-9860R | 5/9 Secondary reference Trw Electronics and Defense Sector Rf Devices |
NSN 5961-01-077-8571 is a Semiconductor Device Set, classified under FSC 5961, Semiconductor Devices and Associated Hardware. Status: active.
Key specifications for 5961-01-077-8571: Voltage Rating in Volts Per Characteristic: 40.0 MAXIMUM BREAKDOWN VOLTAGE, COLLECTOR-TO-EMITTER, BASE OPEN ALL TRANSISTOR; Mounting Facility Quantity: 1 ALL TRANSISTOR; Joint Electronic Device Engineering Council/jedec/case Outline Designation: TO-117 ALL TRANSISTOR; Component Function Relationship: MATCHED. 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.