The 1.5KE39A with 53.9V, 37.1V, and 33.3V DO-201 TVS RoHS manufactured by Yageo is a bidirectional Transient Voltage Suppressor (TVS). It is designed to protect sensitive electronic components from voltage transients induced by inductive load switching, electrostatic discharge, and other causes. This device features a low leakage current of less than 1µA and is RoHS compliant. It is made of molded black plastic and is rated for operating temperatures of -55°C to +125°C. It is suitable for use in a variety of industrial and consumer electronics applications.