... series of electronic components: ICs, Tantalum capacitors, Beads, Optical couplers, Relay, Fuse,Diodes, Discharge, Quartz crystal Devices, Speaker, Buzzer, Optoelectronics/Fiber, Laser ... , Transistor,Trimmer potentiometers, FET(module), inductors, Fixed resistors, Swith, Crystal, Potentiometers and so on,which are widely used in high ...