Optical couplers (1295) Infrared transmitters (459) (148) Optical sensors (76) Infrared receivers (65) IDC connectors (horns) (57) Connector accessory kits (29) Male Pin headers and female headers (25) MOSFET (24) Switching diodes (19) Photoelectric switches (18) Resonators (12) DC-DC power modules (11) Lighting connectors (10) Schottky diodes (10) Ultra-fast/fast recovery diodes (8) SMD disposable fuses (8) TVS diodes (transient voltage suppression diodes) (7) Screwdriver/tweezers/wrench tools (6) ARM Microcontroller - MCU (4) General-purpose diodes (4) Coaxial Cables (4) Wire to Board Connectors/Wire Splice Connectors (3) Fiber optic transceivers (3) Microprocessor - MPU (2) Plug-in connectors (2) OLED display modules (2) Specialized sensors (2) Military connectors (1) Accessories (1) Dedicated switches (1) Light-emitting diodes (1) Ambient light sensors (1) Current sensors (1) Battery holder/Clip accessories (1) Electronic wire connection lines (1)