| Manufacturer | Part Number | Description |
|---|---|---|
General Electric Solid State |
D42C4 | (D42C Series) NPN Power Transistors |
| D42C4 | (D42C Series) 3-Ampere Silicon NPN Power Transistors | |
AUK (Kodenshi AUK Group) |
SD42C4404 | 4Bit Single Chip Microcontroller |