Photocoupler (optoisolator) yang terdiri dari GaAs IrED & phototransistor. Spesifikasi: - IrED forward current = max. 80 mA. - IrED forward voltage = max. 1,5 V. - Phototransistor Vceo = max. 30V. - Phototransistor Ic = max.100 mA. - Switching speed = typ. 3 us. - DC current transfer ratio = typ. 100%. - Isolation voltage = max. 2500 Vrms.