Automotive-grade TVS for 12V/24V load-dump clamping
The 1.5KE120AH: Its 102V reverse standoff voltage and 165V clamping point make it a fit for protecting 12V and 24V vehicle electrical systems against load-dump and inductive-kick transients.
Clamping voltage and breakdown margin
For a 24V nominal bus, the 102V standoff provides roughly 4× margin against steady-state overvoltage before the TVS starts conducting—enough headroom to avoid nuisance triggering from normal ripple. The operating junction temperature range spans -55°C to 175°C, covering the full automotive temperature envelope including cold-crank and engine-bay heat soak.
Package and board integration
The part is unidirectional with a single cathode-band marking—confirm the polarity orientation matches the protected rail. Power line protection is not supported; this is a signal or DC-bus clamp, not an AC mains suppressor.
Sourcing and compliance posture
Listed as Active by Taiwan Semiconductor Corporation. The 1.5KE series includes other voltage variants, but a parametric substitute would require verifying the standoff and clamping levels match the circuit's protection threshold.