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.
The DMG2302U-7 is 20V 4.2A 800 mW SOT23 Package. This N channel MOSFET transistor operates in enhancement mode. This MOSFET transistor has an operating temperature range of -55 °C to 150 °C.
The Type-C USB Charging Discharging Boost Module is a DC-5V 2A, This is a high precision DC5V 2A Charge Discharge Integrated Module Type-C Input compatible with 4.2v/4.35v Lithium Batteries.