The Transistor, cataloged under National Stock Number 5961-00-121-9865, is classified within Federal Supply Class 5961 (Semiconductor Devices and Associated Hardware) of the Electrical and Electronic Equipment Components group. Government technical data includes 15 specifications, cited from the U.S. Government catalog. 9 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 9 items share a part number with this NSN in the catalog (possible match — not a government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 | 5961-00-121-9865 |
| Item Name | Transistor |
| FSC / FSG | 5961 / 59 — Semiconductor Devices and Associated Hardware |
| Status | ACTIVE |
| Voltage Rating in Volts Per Characteristic | -25.0 MAXIMUM COLLECTOR TO BASE VOLTAGE/STATIC/EMITTER OPEN AND -20.0 MAXIMUM COLLECTOR TO EMITTER VOLTAGE/STATIC/BASE OPEN AND -25.0 MAXIMUM EMITTER TO BASE VOLTAGE, STATIC, COLLECTOR OPEN |
| Overall Diameter | 0.209 INCHES MINIMUM AND 0.230 INCHES MAXIMUM IN |
| Terminal Length | 0.500 INCHES MINIMUM IN |
| Mounting Method | TERMINAL |
| Unable to Decode | UNABLE TO DECODE |
| Semiconductor Material | SILICON |
| Internal Configuration | JUNCTION CONTACT |
| Features Provided | HERMETICALLY SEALED CASE |
| Current Rating Per Characteristic | -100.00 MILLIAMPERES MAXIMUM COLLECTOR CURRENT, DC |
| Specification/standard Data | 81349-MIL-S-19500/382 GOVERNMENT SPECIFICATION |
| Test Data Document | 81349-MIL-S-19500 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.). |
| Terminal Type and Quantity | 3 UNINSULATED WIRE LEAD |
| Terminal Circle Diameter | 0.100 INCHES NOMINAL IN |
| Electrode Internally-Electrically Connected to Case | COLLECTOR |
| Power Rating Per Characteristic | 400.0 MILLIWATTS MAXIMUM TOTAL 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 |
| Reference | Meaning |
|---|---|
| 5961PL0819470 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
| 2N2945A | C/1 Advisory reference — outside the item-of-supply concept Sprague Electric Co World Hqs |
| MIS18100-2 | 5/9 Secondary reference Litton Systems Inc. Div Navigation Systems Division |
| JAN2N2945A | 2/2 Government specification standardization U.S. Government activity |
| 352-7500-770 | C/1 Advisory reference — outside the item-of-supply concept Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems |
| 200784-002 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| 418984-2 | 5/9 Secondary reference U.S. Government activity |
| MILS19500-382 | 4/1 Identification reference U.S. Government activity |
| JAN2N2945AA | 5/9 Secondary reference Adelco Elektronik Gmbh |
NSN 5961-00-121-9865 is a Transistor, classified under FSC 5961, Semiconductor Devices and Associated Hardware. Status: active.
9 possible matches (shared part number, not a government interchangeability claim): 5961-00-131-1317, 5961-00-137-4227, 5961-00-163-2061. Verify interchangeability with system specifications before substitution.
Key specifications for 5961-00-121-9865: Voltage Rating in Volts Per Characteristic: -25.0 MAXIMUM COLLECTOR TO BASE VOLTAGE/STATIC/EMITTER OPEN AND -20.0 MAXIMUM COLLECTOR TO EMITTER VOLTAGE/STATIC/BASE OPEN AND -25.0 MAXIMUM EMITTER TO BASE VOLTAGE, STATIC, COLLECTOR OPEN; Overall Diameter: 0.209 INCHES MINIMUM AND 0.230 INCHES MAXIMUM IN; Terminal Length: 0.500 INCHES MINIMUM IN; Mounting Method: TERMINAL. 15 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.