Optical couplers (81) Circular connectors (19) Analog-to-digital conversion ICs (19) Microprocessor - MPU (15) Connector accessory kits (14) Interface specialized ICs (13) Signal switch multiplexer decoder (9) Military connectors (9) Voltage comparators (7) Screw fastener hardware (7) DC-DC ICs (7) Power Management ICs (PMIC) (7) RS232 ICs (6) Standard Clock Oscillators (6) ARM Microcontroller - MCU (5) Soldering and desoldering (5) Switching power supply ICs (5) DC-DC power modules (5) Active filter (4) Tapes/Labels (4) Tact switches (4) Power connectors (3) Sampling resistors (3) Differential op amps (3) Power monitoring ICs (3) Metal film resistors (2) Metal oxide film resistors (2) Passive Crystal Oscillators (2) Amplifiers (2) Instrument op amps (2) LEDUPS and other types of power modules (2) Current transformers (2) Solid State Relays (2) Pushbutton Switches (2) Magnetic sensors (2) Other processors (1) RS485RS422 ICs (1) FFCFPC connectors (1) SMD resistors (1) ESD diodes (1) Boat switches (1) Dedicated switches (1) Light-emitting diodes (1) Infrared transmitters (1) Power chargers (1) Circuit breaker (1) Power relays (1)