This is Shenzhen Smart Electronics Co.,Ltd ,which is engaged in PCB and PCB assembly manufacturing.
We offer one-stop service for PCB/PCBA/FPC/Clone boards/Stencil/Membrane switch/Aluminium Heatsink/Electronics Component .
100PCS MMBT3904 1AM SOT-23 2N3904 SMD 40V 200mA NPN Transistor