Digital triode (40) SMD resistors (33) Development board kit (16) Light-emitting diodes (16) Tact switches (12) Delay timing relays (11) Sampling resistors (10) CPLD-FPGA ICs (9) Voltage reference ICs (9) Connector accessory kits (6) 32-bit Microcontroller - MCU (4) Specialized logic ICs (4) Bipolar transistor (triode) (4) TVS diodes (transient voltage suppression diodes) (3) Other modules (3) Wire accessories (3) Buffer driver receiver transceiver (2) Power inductors (2) Motor ignition driver ICs (2) FLASH memory (1) Wire to Board Connectors/Wire Splice Connectors (1) Fixed inductors (1) Mounted large-capacity capacitors (1) Thin Film Capacitors (1) Switching power supply ICs (1) Pushbutton Switches (1) Antenna (1) Communication satellite positioning module (1)