The KPC4520ETLD with Optocouplers SOP-4_P2.54 RoHS is an electronic component manufactured by Cosmo. It is an integrated circuit, or an IC, designed to protect electronic circuits from electrical noise and transient voltage spikes. The KPC4520ETLD contains four optocouplers that act as 4-channel isolation barriers. The package size is SOP-4_P2.54, which is a four-pin small-outline package (SOP) with a pitch of 2.54mm. It has RoHS-compliant lead-free terminations, meaning it is suitable for use in markets requiring RoHS compliance. The KPC4520ETLD is suitable for a wide variety of applications, including automotive, industrial, telecommunications, and consumer electronics.