The Micro SD TF Card Module is SPI interface via file system driver, microcontroller system to complete the MicroSD card reading and writing functions.
The 2SD2196 200V 15A 65W NPN Darlington Transistors TO-3P Plastic Package. This is a Through Hole Maximum Operating Temperature: + 150C Continuous Collector Current: 15A DC Collector/Base Gain hfe Min: 1500 Height: 13.5 mm Length 15 mm.