The P3100SA with Thyristor Surge Protection Devices (TSPD) DO214AA 275V 45A manufactured by Yageo is an electronic part consisting of four Thyristor Surge Protection Devices (TSPDs) with DO214AA standard packaging in a single 2-pin package. These devices are primarily designed for transient and surge suppression applications in automotive, industrial, and commercial settings. The TSPDs provide superior protection from destructive surges and provide for higher holding current than traditional metal oxide varistor (MOV) based products. The TSPDs also feature excellent dynamic response times and fast operating characteristics. This device is rated for a peak pulse voltage of 275V and a peak pulse current of 45A.