1.5 kW bidirectional TVS for 43.6 V rails
The 1.5KE51CAHA0G is a bidirectional Zener-type TVS diode from Taiwan Semiconductor, part of the 1.5KE series qualified to AEC-Q101 for automotive use. The single bidirectional channel means one device protects both polarities on the same line.
Automotive-grade transient protection
The operating junction temperature range spans -55°C to 175°C, covering under-hood and engine-bay thermal profiles. Power line protection is not intended here (the part is marked 'No' for that), so use it on signal or low-power supply rails.