SMD Resistor – Surface Mount Resistor Guide: What is SMD Resistor? SMD Resistor or Surface Mount Chip Resistor is an electronic component with the properties of both obstruction as well as resistance. The property of this component is called resistance.…
How to Test otocoupler? with Digital Multimeter An opto-isolator contains a source (emitter) of light, almost always a near infrared light-emitting diode (LED), that converts electrical input signal into light, a closed optical channel (also called dielectrical channel, and a photo sensor,…
How to check photo diode? with Digital multimeter A photo diode is a p-n junction or PIN structure. When a photron of sufficient energy strikes the diode, it excites an electron, thereby creating a free electron (and a positively charged electron hole). This mechanism is also known…
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