TP1.5KE 1500W TVS Diodes Littelfuse TP1.5KE 1500W Transient Voltage Suppression (TVS) Diodes are AEC-Q101 automotive-grade devices designed to protect sensitive electronic equipment from voltage transients. TP1.5KE TVS diodes feature 1500W peak pulse capability at 10/1000μs waveform and offer 1.0ps fast response time from 0V to BV minimum.