... MIN. 50% at If=5mA, Vce=5V)2.High input-output isolation voltage (Viso=5,000Vrms)3.Response ... :TYP. 4us at Vce=2V, Ic=2mA, Rl=100)4.UL, CSA, VDE, TUV, FIMKO, NEMKO, SEMKO, approved5 ... , measuring instruments.3.Registers, copiers, automatic vending machines.4.Electric home appliance, such as fan heaters, etc.5 ... cheaper it is!Welcome your enquiry!!! PC817S smd high intensity mounting type optical coupler