The Transistor, cataloged under National Stock Number 5961-01-276-8941, 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 Siliconix Incorporated Div Siliconix. Government technical data includes 9 specifications, cited from the U.S. Government catalog. The record lists 5 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5961-01-276-8941 |
| Primary Part Number | IRF520PBF |
| Item Name | Transistor |
| FSC / FSG | 5961 / 59 — Semiconductor Devices and Associated Hardware |
| Manufacturer | Siliconix Incorporated Div Siliconix |
| Status | ACTIVE |
| Voltage Rating in Volts Per Characteristic | 100.0 MAXIMUM DRAIN TO SOURCE VOLTAGE |
| Joint Electronic Device Engineering Council/jedec/case Outline Designation | TO-220AB |
| Terminal Length | 0.580 INCHES MAXIMUM IN |
| Mounting Method | TERMINAL |
| Semiconductor Material | SILICON |
| Internal Configuration | FIELD EFFECT |
| Current Rating Per Characteristic | 80.00 AMPERES MAXIMUM DRAIN CURRENT |
| Material | PLASTIC ENCLOSURE |
| Terminal Type and Quantity | 3 PIN |
| 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 |
|---|---|
| IRF520 | Nxp Semiconductors France (FRA) |
| IRF520N | Rs Components SAS (FRA) |
| 254-0853 | Rs Components SAS (FRA) |
| IRF520 | Siliconix Incorporated Div Siliconix (USA) |
| IRF520PBF PRIMARY | Siliconix Incorporated Div Siliconix (USA) |
| Reference | Meaning |
|---|---|
| Q26-0039-001 | C/1 Advisory reference — outside the item-of-supply concept L3harris Technologies, Inc. Dba Harris Corp Div Harris Defense Communications |
| 1855-0581 | C/1 Advisory reference — outside the item-of-supply concept Keysight Technologies, Inc. |
| IRF520 | 5/9 Secondary reference Freescale Semiconductor, Inc. |
| 47A529818 | 5/9 Secondary reference Lockheed Martin Corporation Dba Lockheed Martin Aerostructures |
| IRF520 | 5/2 Secondary reference U.S. Government activity |
NSN 5961-01-276-8941 is a Transistor, manufactured by Siliconix Incorporated Div Siliconix, classified under FSC 5961, Semiconductor Devices and Associated Hardware. Status: active.
NSN 5961-01-276-8941 has 5 manufacturer part numbers on file: IRF520 (Nxp Semiconductors France), IRF520N (Rs Components SAS), 254-0853 (Rs Components SAS), IRF520 (Siliconix Incorporated Div Siliconix), IRF520PBF (Siliconix Incorporated Div Siliconix).
Key specifications for IRF520PBF: Overall Height: 0.190 INCHES MAXIMUM IN; Voltage Rating in Volts Per Characteristic: 100.0 MAXIMUM DRAIN TO SOURCE VOLTAGE; Joint Electronic Device Engineering Council/jedec/case Outline Designation: TO-220AB; Terminal Length: 0.580 INCHES MAXIMUM IN. 9 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.