| 2SC4668 | Bipolar Transistors |
| 2SD1804 - NPN Silicon | | 2SC4668 | 60V, 8A, 20W, 180MHz |
| 2SC4668 - NPN Silicon | | 2SC4523, 2SD1804 | 60V, 7A, 10W, <300/2000ns |
| 2SC4523 - NPN Silicon | | 2SC4668, 2SD1804 | 60V, 8A, 15W, 50/180ns |
| 2SC4306 - NPN Silicon | | 2SC4668, 2SD1804 | 30V, 8A, 15W, <300/1150ns |