The Transistor, cataloged under National Stock Number 5961-01-042-4149, 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 Raytheon Company Dba Raytheon. Government technical data includes 12 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5961-01-042-4149 |
| Primary Part Number | BFW10 |
| Item Name | Transistor |
| FSC / FSG | 5961 / 59 — Semiconductor Devices and Associated Hardware |
| Manufacturer | Raytheon Company Dba Raytheon |
| Status | ACTIVE |
| Voltage Rating in Volts Per Characteristic | 30.0 MAXIMUM BREAKDOWN VOLTAGE, DRAIN-TO-SOURCE, WITH ALL OTHER TERMINALS SHORT-CIRCUITED TO SOURCE AND 30.0 MAXIMUM BREAKDOWN VOLTAGE, GATE-TO-SOURCE, WITH ALL OTHER TERMINALS SHORT-CIRCUITED TO SOURCE |
| Joint Electronic Device Engineering Council/jedec/case Outline Designation | TO-72 |
| Overall Diameter | 0.230 INCHES MAXIMUM IN |
| Terminal Length | 0.500 INCHES MINIMUM IN |
| Mounting Method | TERMINAL |
| Semiconductor Material | SILICON |
| Internal Configuration | FIELD EFFECT |
| Features Provided | HERMETICALLY SEALED CASE |
| Current Rating Per Characteristic | 20.00 MILLIAMPERES MAXIMUM DARK CURRENT AND 10.00 MILLIAMPERES MAXIMUM GATE CURRENT |
| Terminal Type and Quantity | 4 UNINSULATED WIRE LEAD |
| Terminal Circle Diameter | 0.100 INCHES NOMINAL IN |
| Power Rating Per Characteristic | 300.0 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 |
NSN 5961-01-042-4149 is a Transistor, manufactured by Raytheon Company Dba Raytheon, classified under FSC 5961, Semiconductor Devices and Associated Hardware. Status: active.
NSN 5961-01-042-4149 has 2 manufacturer part numbers on file: BFW10 (British Sarozal Ltd), BFW10 (Raytheon Company Dba Raytheon).
Key specifications for BFW10: Voltage Rating in Volts Per Characteristic: 30.0 MAXIMUM BREAKDOWN VOLTAGE, DRAIN-TO-SOURCE, WITH ALL OTHER TERMINALS SHORT-CIRCUITED TO SOURCE AND 30.0 MAXIMUM BREAKDOWN VOLTAGE, GATE-TO-SOURCE, WITH ALL OTHER TERMINALS SHORT-CIRCUITED TO SOURCE; Joint Electronic Device Engineering Council/jedec/case Outline Designation: TO-72; Overall Diameter: 0.230 INCHES MAXIMUM IN; Terminal Length: 0.500 INCHES MINIMUM IN. 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.