The 1N6276AG: The 1500 W peak pulse rating puts this TVS in the medium-power class for through-hole transient suppression — it handles a single 8/20 µs surge spike well above the 600 W small-signal TVS range. The 22.5 V maximum clamping voltage at peak pulse current means the protected rail is clamped at that level even if the transient delivers 1.5 kW into the device — the downstream IC sees 22.5 V as the ceiling, not the raw surge voltage. The 15.2 V minimum breakdown voltage and 13.6 V typical reverse standoff define the protection window: the TVS stays invisible on a 13.6 V rail in normal operation and activates when the transient pushes the line above 15.2 V into avalanche breakdown.
DO-201AD axial package — through-hole fit and thermal path
The DO-201AD axial body mounts on 0.4-inch lead spacing, compatible with standard PCB pad patterns for larger discretes. The through-hole leadform accepts hand-soldering or wave assembly and provides a thermal path directly into the PCB copper — critical for a 1.5 kW peak device where the average dissipation during repeated transients drives the junction temperature. Operating junction temperature is rated to 175 °C, giving margin in enclosed panels or near heat sources. The bulk packaging variant ships without a tape/reel option, which matters for high-volume automated insertion but is standard for legacy axial TVS parts.
Obsolete — sourcing this part today
Designers migrating to an alternative should compare the standoff, breakdown, and clamping specifications against the new part — a different base product number may share the same electrical ratings but a different datasheet revision.