CYTLP181(GB-TP) is a type of Optocoupler SOP-4 manufactured by OCIC. It is a 4-pin RoHS-compliant solid-state optocoupler with a highly reliable, 4N35 opto-isolator device. It provides a reliable electrical insulation between the driving side and the driven side of the circuit. The optocoupler is designed to be used in AC and DC signal isolation, interference suppression, signal coupling, functional isolation, and isolation of audio signals. It has a low forward voltage drop and provides excellent isolation performance and high common mode transient immunity (CMRR). This optocoupler also features UL and VDE approvals, making it an ideal choice for applications in high isolation, high noise immunity, low power consumption, and long life span.