Device identity and key parametrics
The 1.5KE68CAHE3_A/C is a 1500 W bidirectional TransZorb TVS diode from Vishay, part of the automotive-grade AEC-Q101 qualified series. It protects a single line against transient overvoltage events, clamping at 92 V when the peak pulse current reaches 16.3 A under the standard 10/1000 µs waveform. The reverse standoff voltage is 58.1 V, with a minimum breakdown of 64.6 V. This means the diode stays transparent below 58.1 V and starts conducting only when the line exceeds that threshold, making it suitable for 48 V nominal rails that see occasional surges.
Housed in a DO-201AA (DO-27) axial-lead package, the 1.5KE68CAHE3_A/C mounts through-hole. The lead spacing and body diameter match standard 0.100-inch pitch layouts, and the 1500 W pulse rating assumes the leads are soldered into a board with adequate copper for heat sinking during the surge event.