The Applied Power AR0502S1 is a transient voltage suppressor (TVS) device with three different input ratings, 10V, 6V, and 5V, and packaged in a SOT-143 package. It is designed to provide protection from voltage overshoots and spikes. The AR0502S1 is RoHS compliant and can be used in a wide range of applications, such as automobiles, consumer electronics, computers, and industrial equipment. It can handle high surge or power transmission without compromising performance.