The Transistor, cataloged under National Stock Number 5961-01-651-9839, 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 Vishay Intertechnology, Inc.. Government technical data includes 8 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5961-01-651-9839 |
| Primary Part Number | IRF840ASPBF |
| Item Name | Transistor |
| FSC / FSG | 5961 / 59 — Semiconductor Devices and Associated Hardware |
| Manufacturer | Vishay Intertechnology, Inc. |
| Status | ACTIVE |
| Voltage Rating in Volts Per Characteristic | 500.0 NOMINAL DRAIN TO SOURCE VOLTAGE |
| Joint Electronic Device Engineering Council/jedec/case Outline Designation | TO-263AB |
| Mounting Method | TERMINAL |
| Semiconductor Material | SILICON |
| Features Provided | ROHS DIRECTIVE COMPLIANCE |
| Current Rating Per Characteristic | 8.0 AMPERES NOMINAL DRAIN CURRENT |
| Terminal Type and Quantity | 3 SOLDER STUD |
| Power Rating Per Characteristic | 125.0 WATTS MAXIMUM FORWARD POWER DISSIPATION, MAXIMUM PEAK, TOTAL VALUE |
| 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 |
|---|---|
| IRF840ASPBF PRIMARY | Vishay Intertechnology, Inc. (USA) |
NSN 5961-01-651-9839 is a Transistor, manufactured by Vishay Intertechnology, Inc., classified under FSC 5961, Semiconductor Devices and Associated Hardware. Status: active.
NSN 5961-01-651-9839 has 1 manufacturer part number on file: IRF840ASPBF (Vishay Intertechnology, Inc.).
Key specifications for IRF840ASPBF: Overall Height: 0.160 INCHES MINIMUM AND 0.190 INCHES MAXIMUM IN; Voltage Rating in Volts Per Characteristic: 500.0 NOMINAL DRAIN TO SOURCE VOLTAGE; Joint Electronic Device Engineering Council/jedec/case Outline Designation: TO-263AB; Mounting Method: TERMINAL. 8 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.