Level conversion shifter (73) Analog switch ICs (63) (60) Signal switch multiplexer decoder (58) Schottky diodes (46) 74 series logic ICs (26) EMI/RFI Filters (24) MOSFET (19) Delay timing relays (16) Screwdriver/tweezers/wrench tools (14) I/O expander (13) D-Sub connector accessories (13) Light-emitting diodes (8) Relay socket accessories (7) Circuit Protection Kits (6) Interface specialized ICs (5) Instrument and equipment and accessories (5) Instrument op amps (4) Amplifiers (3) Switching power supply ICs (3) Signal relay (3) TVS diodes (transient voltage suppression diodes) (2) Power monitoring ICs (2) Optical couplers (2) ESD diodes (1) DC-DC power modules (1) (1)