1500W peak pulse power in a DO-13 through-hole package
This is the surge rating that defines its ability to clamp transients on a DC rail or signal line without failing — the 124A peak pulse current at the clamping voltage confirms the energy-handling margin for a 7V nominal rail. The DO-13 through-hole package is a hermetic metal can suited for high-reliability and harsh-environment applications. The through-hole mounting simplifies manual replacement in field-service or prototype builds, though the package footprint is larger than surface-mount alternatives.
Breakdown and clamping thresholds for a 7V rail
The reverse standoff voltage is 7V, meaning the part does not conduct appreciably below that level. Breakdown occurs at a minimum of 7.79V, and clamping is limited to 12.1V maximum at the rated peak pulse current of 124A. For a 7V supply bus, this leaves a 5.1V headroom between the rail and the clamp — adequate for most 12V-tolerant transients, but tight if the rail rides high under load.
Active production — no obsolescence watch
The junction temperature ceiling of 175°C allows derating headroom in high-power surge events.