The LTV-1009 with Optocouplers LSOP-4 RoHS manufactured by Youtai is an optically isolated component designed to provide electrical isolation between two electronic circuits. The optocoupler is composed of a light-emitting diode (LED) surrounded by a slotted plastic housing carrying a four-pin, surface mount optically-isolated light-receiving transistor. It has an isolation resistance rating of up to 5000 MO between the input and output channels, which ensures reliable data transmission between two circuits. The LED can be used to both send and receive data signals. The device is also compliant with RoHS standards, meaning it is free of hazardous substances and meets environmental safety requirements.