The Lite-On LTV-354T-A with transistor output optocouplers is a 4-pin device designed to provide electrical isolation between two circuits while allowing digital communication between them. It features a high common-mode transient immunity of up to 10 kV/µs, low input current of 5 mA max, and an isolation voltage of up to 3000 Vrms. The optocoupler is UL recognized and CSA certified, and has a wide temperature range from -40°C to 85°C.