If you can't find the electronic components you want in the electronic market, you can go to the online electronic mall. There are10 million kinds of electronic components in Hard City Electronic Components Mall, including capacitors, resistors, inductors, potentiometers, sensors, relays, diodes, triodes, ic, single chip computers, MCU, thyristors, silicon controlled oscillators, field effect transistors, MOS, connectors, filters, electronic wires, multimeters, tweezers, soldering irons, air guns and so on.