P4KE33A-E3/54TVS 400W 33V 5% UNIDIR AXIAL|VISHAY SEMICONDUCTOR DIODES DIVISION|Lead free|RoHS Compliant P4KE33A P4KE33A-E3/73TVS 400W 33V 5% UNIDIR AXIAL|VISHAY SEMICONDUCTOR DIODES DIVISION|Lead free|RoHS Compliant P4KE33A-B