| 2SC4617H | Bipolar Transistors |
| 2SC5658 | Bipolar Transistors |
| 2SC1740S | Bipolar Transistors |
| 2SC4081 | Bipolar Transistors |
| 2SC4723 - NPN Silicon | | 2SC4081, 2SC4128, 2SC4155, 2SC4177 | =2SC4642 |
| 2SC4562 - NPN Silicon | | 2SC4081, 2SC4128, 2SC4141, 2SC4155 | =2SC4561 |
| 2SC4128 - NPN Silicon | | 2SC4081, 2SC4141 | 50V, 0,1A, 230MHz |
| 2SC4098 - NPN Silicon | | 2SC4081, 2SC4128, 2SC4155 | =2SC2413K |
| 2SC4081 - NPN Silicon | | BC 847W, 2SC4116, 2SC4141, 2SC4177 | =2SC2412K |
| 2SC4081 | | | 2SC2412K above |