Bidirectional clamp — one device for both polarities
The 1.5SMC440CA/TR13: The DO-214AB (SMC) package handles the 1500W peak pulse without cracking the body — the large paddle area under the cathode conducts heat into the PCB copper during the pulse.
YAGEO lists the 1.5SMC440CA/TR13 as Active — this is a current-production part suitable for new designs and BOM fill.
