Clamping voltage and surge current — what the ratings mean for your BOM
The 1.5SMC200CAHR7G: The 274V clamping voltage at 5.7A peak pulse current defines the maximum voltage the protected load sees during a surge event. For a 171V nominal rail, this clamp provides roughly 60% headroom above the operating voltage — enough margin for most automotive load-dump and inductive kickback scenarios without stressing downstream components. The 190V minimum breakdown voltage ensures the device starts conducting before the rail exceeds its safe operating area, while the 171V standoff rating means it will not leak or degrade under normal DC bias. The DO-214AB (SMC) package handles the 1500W pulse without exceeding the junction temperature limit when mounted with adequate copper pad area.
Active production — sourcing this exact ordering code
Supplied in tape-and-reel packaging (the HR7G suffix indicates the reel and packing option), this ordering code is the standard surface-mount variant for automated assembly lines. Confirm the reel quantity and moisture sensitivity level with your distributor at quote time.