The 5KP75CA transistor with 121V 83.3V 75V plugin TVS ROHS manufactured by Yageo is a surface-mount, unidirectional, unipolar, wave suppression diode with a transient voltage-rated maximum of 150V. It is designed to protect sensitive electronic components from voltage spikes and electrical noise. The device is in a 4-pin DO-226AA (SHEET) package and is ROHS compliant. Its uses include electronic snubber circuits, telecom instrumentation, industrial automation, DC to DC converters, and computer and LAN equipment.