The Transistor, cataloged under National Stock Number 5961-01-249-1026, 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14 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government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 | 5961-01-249-1026 |
| Item Name | Transistor |
| FSC / FSG | 5961 / 59 — Semiconductor Devices and Associated Hardware |
| Status | ACTIVE |
| Voltage Rating in Volts Per Characteristic | 200.0 MINIMUM BREAKDOWN VOLTAGE, COLLECTOR-TO-EMITTER, WITH SPECIFIED RESISTANCE BETWEEN BASE AND EMITTER AND 259.0 MAXIMUM BREAKDOWN VOLTAGE, COLLECTOR-TO-EMITTER, WITH SPECIFIED RESISTANCE BETWEEN BASE AND EMITTER |
| Maximum Operating Temp Per Measurement Point | 200.0 CELSIUS JUNCTION DEGC |
| Joint Electronic Device Engineering Council/jedec/case Outline Designation | TO-5 |
| Overall Diameter | 0.370 INCHES MAXIMUM IN |
| Terminal Length | 1.500 INCHES MINIMUM IN |
| Mounting Method | TERMINAL |
| Semiconductor Material | SILICON |
| Internal Configuration | JUNCTION CONTACT |
| Features Provided | HERMETICALLY SEALED CASE |
| Current Rating Per Characteristic | 1.00 NANOAMPERES MAXIMUM COLLECTOR CUTOFF CURRENT, DC, WITH BASE SHORT-CIRCUITED TO EMITTER |
| Test Data Document | 82577-3366408 DRAWING (THIS IS THE BASIC GOVERNING DRAWING, SUCH AS A CONTRACTOR DRAWING, ORIGINAL EQUIPMENT MANUFACTURER DRAWING, ETC.; EXCLUDES ANY SPECIFICATION, STANDARD OR OTHER DOCUMENT THAT MAY BE REFERENCED IN A BASIC GOVERNING DRAWING) |
| Terminal Type and Quantity | 3 UNINSULATED WIRE LEAD |
| Terminal Circle Diameter | 0.200 INCHES NOMINAL IN |
| Power Rating Per Characteristic | 800.0 MILLIWATTS MAXIMUM COLLECTOR 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 |
|---|---|
| 3366408 | 3/2 Design control — primary reference U.S. Government activity |
| 3366408 | 5/9 Secondary reference Fairchild Semiconductor Corp Components Group Sub of Schlumberger Ltd |
| JANTX2N3019 | 5/1 Secondary reference U.S. Government activity |
NSN 5961-01-249-1026 is a Transistor, classified under FSC 5961, Semiconductor Devices and Associated Hardware. Status: active.
3 possible matches (shared part number, not a government interchangeability claim): 5961-01-341-9617, 1560-01-707-4454, 1560-01-707-4457. Verify interchangeability with system specifications before substitution.
Key specifications for 5961-01-249-1026: Voltage Rating in Volts Per Characteristic: 200.0 MINIMUM BREAKDOWN VOLTAGE, COLLECTOR-TO-EMITTER, WITH SPECIFIED RESISTANCE BETWEEN BASE AND EMITTER AND 259.0 MAXIMUM BREAKDOWN VOLTAGE, COLLECTOR-TO-EMITTER, WITH SPECIFIED RESISTANCE BETWEEN BASE AND EMITTER; Maximum Operating Temp Per Measurement Point: 200.0 CELSIUS JUNCTION DEGC; Joint Electronic Device Engineering Council/jedec/case Outline Designation: TO-5; Overall Diameter: 0.370 INCHES MAXIMUM IN. 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.