1.5 kW bidirectional transient suppressor
The 1.5KE120CA/B: Its 102 V reverse standoff voltage means the protected rail sits below the clamping threshold during normal operation, while the 114 V minimum breakdown voltage defines where conduction starts. The 165 V maximum clamping voltage at 9.2 A peak pulse current sets the upper bound the downstream circuitry must survive.
Protection window and pulse handling
The four-voltage stack — 102 V reverse standoff, 114 V breakdown, 165 V clamping — defines the protection window. A rail held at 102 V or below sees negligible leakage; a transient that drives the line above 114 V triggers avalanche conduction, and the clamp limits the spike to 165 V maximum. The 9.2 A peak pulse current rating at the 10/1000 µs test waveform confirms the diode can absorb the energy without failing short.