The Transistor, cataloged under National Stock Number 5961-00-577-0557, 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 Hewlett-Packard Company Dba HP. Government technical data includes 12 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5961-00-577-0557 |
| Primary Part Number | 1854-0250 |
| Item Name | Transistor |
| FSC / FSG | 5961 / 59 — Semiconductor Devices and Associated Hardware |
| Manufacturer | Hewlett-Packard Company Dba HP |
| Status | ACTIVE |
| Voltage Rating in Volts Per Characteristic | -140.0 MAXIMUM BREAKDOWN VOLTAGE, COLLECTOR-TO-BASE, EMITTER OPEN |
| Mounting Facility Quantity | 2 |
| Overall Diameter | 0.875 INCHES MAXIMUM IN |
| Mounting Method | UNTHREADED HOLE(S) |
| Criticality Code Justification | FEAT |
| Semiconductor Material | SILICON |
| Internal Configuration | JUNCTION CONTACT |
| Features Provided | HERMETICALLY SEALED CASE |
| Current Rating Per Characteristic | 10.00 AMPERES MAXIMUM COLLECTOR CURRENT, DC |
| Terminal Type and Quantity | 2 UNINSULATED WIRE LEAD AND 1 CASE |
| Electrode Internally-Electrically Connected to Case | COLLECTOR |
| Power Rating Per Characteristic | 115.0 WATTS MAXIMUM TOTAL DEVICE DISSIPATION |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | Y |
| Part Number | Manufacturer |
|---|---|
| 1854-0250 PRIMARY | Hewlett-Packard Company Dba HP (USA) |
| Reference | Meaning |
|---|---|
| 7934836 | 5/9 Secondary reference U.S. Government activity |
| SJ945 | 5/9 Secondary reference Freescale Semiconductor, Inc. |
| 37578 | 5/9 Secondary reference Renesas Electronics America Inc |
NSN 5961-00-577-0557 is a Transistor, manufactured by Hewlett-Packard Company Dba HP, classified under FSC 5961, Semiconductor Devices and Associated Hardware. Status: active.
NSN 5961-00-577-0557 has 1 manufacturer part number on file: 1854-0250 (Hewlett-Packard Company Dba HP).
2 possible matches (shared part number, not a government interchangeability claim): 6240-01-450-4982, 5310-01-600-5330. Verify interchangeability with system specifications before substitution.
Key specifications for 1854-0250: Voltage Rating in Volts Per Characteristic: -140.0 MAXIMUM BREAKDOWN VOLTAGE, COLLECTOR-TO-BASE, EMITTER OPEN; Mounting Facility Quantity: 2; Overall Diameter: 0.875 INCHES MAXIMUM IN; Mounting Method: UNTHREADED HOLE(S). 12 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.