VTL5C3/2 – TBC

The VTL5C3/2 is a dual-channel optocoupler, functionally equivalent to two discrete optoisolators within a single package. Each channel comprises an LED optically coupled to a photoresistor. The LED typically exhibits a forward voltage of approximately 1.2V at a forward current of 10mA, providing the input drive signal. The photoresistor exhibits a high dark resistance, typically exceeding 10 MΩ, decreasing to several hundred ohms or less when the LED is energized. This resistance change is non-linear and dependent on the LED current. The device is suitable for applications requiring galvanic isolation and signal transfer, such as audio level controls, isolated switching, and variable gain amplifiers where a smooth, clickless response is desired. Response time for the photoresistor is relatively slow, on the order of milliseconds, making it unsuitable for high-frequency applications. The isolation voltage is typically rated at 1500Vrms.