The BCX71 (BJW) is a PNP general purpose transistor SOT-23. Features. Low current (max. 100 mA) Low voltage (max. 45 V) Low noise. AEC-Q101 qualified. Target Applications
The MOSFET Trigger Switch Driver Module is of high power MOSFET trigger switch driver and control with field-effect tube to adjust the electronic switch.
This is a thermal printer like you would find on a cash register or adding machine. It will print simple strings passed to it via TTL serial, bitmap images (poorly) and it can generate several different formats of barcodes.