The UAT52A05L02 is an ESD (ElectroStatic Discharge) Diode manufactured by Yageo. It is a SOT-523 RoHS compliant component. It has 5 pins and comes in a surface mount package. The UAT52A05L02 can be used to protect sensitive electronic components from electrostatic discharge (ESD) damage. This diode is rated at a maximum working voltage of 5.2V and maximum working current of 5mA.