Light-emitting diodes (28) (17) Passive Crystal Oscillators (16) TVS diodes (transient voltage suppression diodes) (4) Rectifier bridges (4) Linear voltage regulator ICs LDO (4) RF coaxial connectors (3) Signal switch multiplexer decoder (2) Resonators (2) Instrument op amps (2) Analog-to-digital conversion ICs (2) Digital-to-analog conversion ICs (2) Wire accessories (2) Audio and video interface ICs (1) Backplane connectors (1) ESD diodes (1) Screwdriver/tweezers/wrench tools (1) Circuit breaker (1) MOSFET (1) Electromechanical and electrical (1)