P6KE6.8AGTVS ZENER UNIDIR 600W 6.8V AXIAL|ON SEMICONDUCTOR|Lead free|RoHS Compliant P6KE6.8A-E3/54 P6KE6.8A-TP P6KE6.8AHE3/54 P6KE68AGTVS ZENER UNIDIR 600W 68V AXIAL|ON SEMICONDUCTOR|Lead free|RoHS Compliant P6KE68A P6KE68A-TP P6KE68A-T P6KE68A