A&s semiconductor co., ltd can supply many kinds of diodes: Solid state diode Tube diode Light emiting diode Light sensitive diode Si diode Silicon avalanche diode International rectifier diode Constant current diode Red laser diode Infrared emitting diode Ir receiver diode Snubber diode Recovery diode Mixer diode Breakdown diode Diodes for dummies Detector diode Ac diode Step recovery diode