2SC1678 Transistor ( NPN ) Posted on March 26, 2021January 3, 2015 by 1pico Part Number : 2SC1678 Function : 2SC1678, C1678 / 27Mhz Power Amplifier Applications. Manufacturer : Toshiba Pinout : Description * Recommended for Output Stage Application of AM 4W Transmitter. * High Power Gain. Datasheet PDF Download Other datasheets in the file : 2SC1678,C1678