The SL-1009 Optocoupler by SLKORMICRO is an isolator component, consisting of an infrared LED input and a phototransistor output, which allows for DC current transfer between two isolated circuits while preventing high voltage or temperature surges. The component offers an input voltage of 80V and a high isolation voltage of 5000V, making it suitable for a variety of applications. It has a maximum output current of 50mA, an input voltage current of 0.3V at 1mA, a maximum output voltage of 6V, and an output voltage current of 1.25V in DC mode. The SL-1009 is available in a SOP-4-2.54mm package, conforming to the RoHS standard.