Signal switch multiplexer decoder (310) Analog switch ICs (70) Plug-in connectors (67) D-Sub connector accessories (46) Fence-type terminal blocks (46) SMD capacitors (40) Light-emitting diodes (32) Direct-insert ceramic capacitors (30) SMD resistors (9) Switching power supply ICs (7) Development board kit (7) Connector accessory kits (3) Tapes/Labels (3) Communication satellite positioning module (3) SMD electrolytic capacitors (2) NTC thermistors (2) Tact switches (2) LED light guide tube accessories (2) Optical sensors (2) Circuit Protection Kits (2) FLASH memory (1) Mounted large-capacity capacitors (1) MELF wafer resistors (1) ESD diodes (1) Wireless modules (1) Relay socket accessories (1)