The SI-9945DY, SI9945, 9945 is a N-Channel Dual MOSFET 60V 4.3A 2W 58mohm 10V Enhancement Mode MOSFETs are produced using advance process that has been especially tailored to minimize on-state resistance and yet maintain superior switching performance.
This device is designed as a general−purpose amplifier and switch. The useful dynamic range extends to 60V 200mA 625mW as a switch and to 100MHz as an amplifier.
The 2SC3679, 2SC-3679, 3679 is a 900V 5A 100W Silicon NPN Triple Diffused Planar High Voltage Switching Transistor TO-218 Package, Manufactured By SANKEN Semiconductor.