The SCR is controlled through the intensity of the LED. Common example are MOC3071, IL400, MOC3072 etc. it is small in size and less weight so can easily be managed. An optocoupler is best for AC and DC high-voltage. An optocoupler (or opto-isolator) is a component that transfer signals between circuits using light. It typically consists of a light-emitting diode (LED) on the input side and a photodetector (usually a phototransistor, photodiode, or. My purpose here is to use SCR output Optocouplers to control power SCRs. See Basic Power Supply Rectification Tutorial. The H11C series consists of a. Optocouplers are electronic components which use light waves to provide electrical isolation while transferring an electrical signal. Mouser offers inventory, pricing, & datasheets for Triac & SCR Output Optocouplers.
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