Peak pulse power and clamping voltage
The 5.0SMDJ40CA/TR13: The maximum clamping voltage of 64.5 V at 77.6 A peak pulse is the figure that matters for downstream circuitry survival — it is the let-through voltage the protected circuit actually sees when the transient arrives. The reverse standoff of 40 V defines the continuous working voltage; the breakdown minimum of 44.4 V marks where conduction begins.
Bidirectional Zener TVS in SMC packaging
A bidirectional single-channel Zener TVS — the single-channel designation means it clamps between one signal line and ground or across one supply rail, not between two independent buses. Operating junction temperature extends to 150 °C, which gives headroom above the clamping thermal event — the die stays within its temperature rating even if the peak pulse repeats before full cool-down, a condition that matters in motor-drive and power-supply protection where transients can cluster.
Sourcing posture
The 5.0SMDJ40CA/TR13 is an active YAGEO part, quoted to order per BOM quantity through independent distribution.