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An Optocoupler also called as photocoupler or opto-isolator are basically electronic components that are used to transfer electrical signals between two isolated circuits by making use of light. Get high quality optocouplers, optocoupler transistors online, for electronics requirements on demand at Nevon express. We supply many varieties of opto-isolators, optocouplers/photocouplers online in India, US, UK, UAE, Canada & other countries with best discount offers.