| 78681 | 2SC4171 | NPN Triple Diffused Planar Type Silicon Transistor Switching Regulator Applications | SANYO |
| 78682 | 2SC4172 | NPN Triple Diffused Planar Silicon Transistor 500V/5A Switching Regulator Applications | SANYO |
| 78683 | 2SC4173 | HIGH FREQUENCY AMPLIFIER AND SWITCHING NPN SILICON EPITAXIAL TRANSISTOR | NEC |
| 78684 | 2SC4173-T1 | Silicon transistor | NEC |
| 78685 | 2SC4173-T2 | Silicon transistor | NEC |
| 78686 | 2SC4175 | HIGH SPEED SWITCHING NPN SILICON EPITAXIAL TRANSISTOR | NEC |
| 78687 | 2SC4175-T1 | Silicon transistor | NEC |
| 78688 | 2SC4175-T2 | Silicon transistor | NEC |
| 78689 | 2SC4176 | HIGH SPEED SWITCHING NPN SILICON EPITAXIAL TRANSISTOR | NEC |
| 78690 | 2SC4176-T1 | Silicon transistor | NEC |
| 78691 | 2SC4176-T2 | Silicon transistor | NEC |
| 78692 | 2SC4177 | AUDIO FREQUENCY GENERAL PURPOSE AMPLIFIER NPN SILICON EPITAXIAL TRANSISTOR | NEC |
| 78693 | 2SC4177-T1 | Silicon transistor | NEC |
| 78694 | 2SC4177-T2 | Silicon transistor | NEC |
| 78695 | 2SC4178 | HIGH FREQUENCY AMPLIFIER NPN SILICON EPITAXIAL TRANSISTOR | NEC |
| 78696 | 2SC4178-T1 | Silicon transistor | NEC |
| 78697 | 2SC4178-T2 | Silicon transistor | NEC |
| 78698 | 2SC4179 | FM/AM RF AMPLIFIER, MIXER, OSCILLATOR, CONVERTER NPN SILICON EPITAXIAL TRANSISTOR | NEC |
| 78699 | 2SC4179-T1 | Silicon transistor | NEC |
|
| 78700 | 2SC4179-T2 | Silicon transistor | NEC |
| 78701 | 2SC4180 | AUDIO FREQUENCY HIGH GAIN AMPLIFIER NPN SILICON EPITAXIAL TRANSISTOR | NEC |
| 78702 | 2SC4180-T1 | Silicon transistor | NEC |
| 78703 | 2SC4180-T2 | Silicon transistor | NEC |
| 78704 | 2SC4181 | AUDIO FREQUENCY AMPLIFIER, SWITCHING NPN SILICON EPITAXIAL TRANSISTORS | NEC |
| 78705 | 2SC4181-T1 | Silicon transistor | NEC |
| 78706 | 2SC4181-T2 | Silicon transistor | NEC |
| 78707 | 2SC4181A | AUDIO FREQUENCY AMPLIFIER, SWITCHING NPN SILICON EPITAXIAL TRANSISTORS | NEC |
| 78708 | 2SC4181A-T1 | Silicon transistor | NEC |
| 78709 | 2SC4181A-T2 | Silicon transistor | NEC |
| 78710 | 2SC4182 | UHF/VHF OSCILLATOR AND VHF MIXER NPN SILICON EPITAXIAL TRANSISTOR SUPER MINI MOLD | NEC |
| 78711 | 2SC4183 | RF AMPLIFIER FOR UHF TV TUNER NPN SILICON EPITAXIAL TRANSISTOR SUPER MINI MOLD | NEC |
| 78712 | 2SC4184 | UHF OSCILLATOR AND VHF MIXER NPN SILICON EPITAXIAL TRANSISTOR SUPER MINI MOLD | NEC |
| 78713 | 2SC4185 | UHF OSCILLATOR AND VHF MIXER NPN SILICON EPITAXIAL TRANSISTOR SUPER MINI MOLD | NEC |
| 78714 | 2SC4186 | UHF OSCILLATOR AND UHF MIXER NPN SILICON EPITAXIAL TRANSISTOR MINI MOLD | NEC |
| 78715 | 2SC4187 | MICROWAVE LOW NOISE AMPLIFIER NPN SILICON EPITAXIAL TRANSISTOR SUPER MINI MOLD | NEC |
| 78716 | 2SC4187-T1 | Silicon transistor | NEC |
| 78717 | 2SC4187-T2 | Silicon transistor | NEC |
| 78718 | 2SC4188 | NPN Epitaxial Planar Silicon Transistor Ultrahigh-Definition CRT Display Video Output Applications | SANYO |
| 78719 | 2SC4190 | Power Transistor - Silicon NPN Epitaxial Planar Type | Panasonic |
| 78720 | 2SC4190 | Silicon NPN Epitaxial Planar Type | Unknow |
