Transistor output optocouplers are optoelectronic devices used to isolate different sections of an electronic circuit. They consist of an LED and a phototransistor housed in a single package. When the LED is activated, it emits light that triggers the phototransistor, allowing current to flow. This optical isolation provides protection against high voltages and noise, ensuring the safe and reliable operation of electronic systems. Optocouplers are commonly used in power supplies, signal isolation, and communication interfaces.
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