| Manufacturer | Part Number | Description |
|---|---|---|
| J503 | Current Regulator Diodes | |
InterFET
| J503 | Current Regulator Diode |
Micross
| J503 | Current Reg. Diode |
| 2SJ503 | P-Channel MOSFET | |
| J503 | n-channel JFET | |
| MIG20J503H | Intelligent Power Module | |
Panasonic
| ERTD2FHJ503S | NTC Thermistors |
| SSM6J503NU | Silicon P-Channel MOSFET | |
Micross
| LSJ503 | Current Reg. Diode |