The Semiconductor Devices,unitized, cataloged under National Stock Number 5961-00-313-0401, 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 Semiconductor Technology, Inc. Dba Semiconductor Technology Inc. Government technical data includes 2 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 | 5961-00-313-0401 |
| Primary Part Number | ST-2538 |
| Item Name | Semiconductor Devices,unitized |
| FSC / FSG | 5961 / 59 — Semiconductor Devices and Associated Hardware |
| Manufacturer | Semiconductor Technology, Inc. Dba Semiconductor Technology Inc |
| Status | ACTIVE |
| Overall Diameter | 0.305 INCHES MINIMUM AND 0.335 INCHES MAXIMUM IN |
| Terminal Length | 1.500 INCHES NOMINAL IN |
| 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 |
|---|---|
| ST-2538 PRIMARY | Semiconductor Technology, Inc. Dba Semiconductor Technology Inc (USA) |
NSN 5961-00-313-0401 is a Semiconductor Devices,unitized, manufactured by Semiconductor Technology, Inc. Dba Semiconductor Technology Inc, classified under FSC 5961, Semiconductor Devices and Associated Hardware. Status: active.
NSN 5961-00-313-0401 has 1 manufacturer part number on file: ST-2538 (Semiconductor Technology, Inc. Dba Semiconductor Technology Inc).
1 possible match (shared part number, not a government interchangeability claim): 5340-01-673-1668. Verify interchangeability with system specifications before substitution.
Key specifications for ST-2538: Overall Height: 0.150 INCHES MINIMUM AND 0.180 INCHES MAXIMUM IN; Overall Diameter: 0.305 INCHES MINIMUM AND 0.335 INCHES MAXIMUM IN; Terminal Length: 1.500 INCHES NOMINAL IN; Special Features: NPN/PNP COMPLIMENTARY PAIRS; 200 DEG C JUNCTION TEMP; 600/350 MW; 30 VDC COLLECTOR TO EMITTER VOLTAGE; COMMON EMITTER; LARGE-SIGNAL SHORT CIRCUIT; FORWARD CURRENT; 70 TRANSFER RATIO AT 150 MA COLLECTOR CURRENT; 0.4 VDC COLLECTOR TO EMITTER SATURATION VOLTAGE AT 150 MA; RMS/15 MA DC COLLECTOR CUTOFF CURRENT; 100 NANOAMPS EMITTER OPEN; UNITY 200 MHZ MIN FREQ AT WHICH COMMON EMITTER CURRENT GAIN; 0.335 TO 0.370 BASE DIA; 6 WIRE LEAD TERMINALS 0.016 TO 0.019 IN. DIA MHz. 2 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.