The Transistor, cataloged under National Stock Number 5961-00-628-6682, 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 Diotec Semiconductor Ag. Government technical data includes 10 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5961-00-628-6682 |
| Primary Part Number | BC559A |
| Item Name | Transistor |
| FSC / FSG | 5961 / 59 — Semiconductor Devices and Associated Hardware |
| Manufacturer | Diotec Semiconductor Ag |
| Status | ACTIVE |
| Voltage Rating in Volts Per Characteristic | 20.0 MAXIMUM BREAKDOWN VOLTAGE, COLLECTOR-TO-EMITTER, BASE OPEN AND 5.0 MAXIMUM BREAKDOWN VOLTAGE, EMITTER-TO-BASE, COLLECTOR OPEN |
| Maximum Operating Temp Per Measurement Point | 165.0 CELSIUS JUNCTION DEGC |
| Terminal Length | 0.500 INCHES NOMINAL IN |
| Mounting Method | TERMINAL |
| Semiconductor Material | SILICON |
| Current Rating Per Characteristic | 50.00 MILLIAMPERES MAXIMUM COLLECTOR CURRENT, DC |
| Material | PLASTIC ENCLOSURE |
| Terminal Type and Quantity | 3 UNINSULATED WIRE LEAD |
| Terminal Circle Diameter | 0.095 INCHES MINIMUM AND 0.105 INCHES MAXIMUM IN |
| Power Rating Per Characteristic | 300.0 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 |
| Part Number | Manufacturer |
|---|---|
| BC559A | Diotec Semiconductor Ag (DEU) |
| BC559A | Siliconix Incorporated Div Siliconix (USA) |
| Reference | Meaning |
|---|---|
| 622132619200 | 5/9 Secondary reference Ncb Hungary (honvedsegi Egyseges Termekkod) |
| BC559-A | 3/9 Design control — primary reference Amperex Electronic Corp |
| BC309 | 5/9 Secondary reference Amperex Electronic Corp |
| BC559A | 5/9 Secondary reference Philips Semiconductors Inc |
NSN 5961-00-628-6682 is a Transistor, manufactured by Diotec Semiconductor Ag, classified under FSC 5961, Semiconductor Devices and Associated Hardware. Status: active.
NSN 5961-00-628-6682 has 2 manufacturer part numbers on file: BC559A (Diotec Semiconductor Ag), BC559A (Siliconix Incorporated Div Siliconix).
Key specifications for BC559A: Overall Height: 4.200 MILLIMETERS MAXIMUM MM; Voltage Rating in Volts Per Characteristic: 20.0 MAXIMUM BREAKDOWN VOLTAGE, COLLECTOR-TO-EMITTER, BASE OPEN AND 5.0 MAXIMUM BREAKDOWN VOLTAGE, EMITTER-TO-BASE, COLLECTOR OPEN; Maximum Operating Temp Per Measurement Point: 165.0 CELSIUS JUNCTION DEGC; Terminal Length: 0.500 INCHES NOMINAL IN. 10 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.