1500W surge clamp for 5.8V rails
The 1.5KE6.8AHB0G is a 1500W peak-pulse Zener TVS diode from Taiwan Semiconductor's 1.5KE series, designed to clamp transients on 5.8V nominal rails. With a breakdown voltage of 6.45V minimum and clamping at 10.5V maximum at 150A peak pulse current (10/1000µs waveform), it protects downstream silicon from surges that exceed the rail's absolute maximum rating.
Clamping voltage and peak current envelope
The 1500W peak pulse power is the product of clamping voltage and peak current; derate this for higher ambient temperatures per the datasheet curve. The 5.8V reverse standoff is the maximum DC voltage the diode blocks without conducting — at 5.8V the leakage is negligible, so it sits across a 5V supply rail without draining the battery. The 6.45V minimum breakdown guarantees the avalanche triggers before the rail hits 7V, catching transients before they reach the load.
DO-201 axial package and board integration
The DO-201AA / DO-27 axial package is a through-hole form factor with a 0.052-inch lead diameter — it mounts into a 1.0mm drilled hole on a standard PCB or terminal block. The axial leads allow either vertical or horizontal mounting; the body length is about 7.5mm, so it fits between board-edge connectors or alongside electrolytic capacitors in a power supply layout. Bulk packaging means the parts ship loose in a bag or tube — no reel, no carrier tape. For a rework bench or low-volume assembly, this is fine; for automated pick-and-place, the axial leads require a radial-tape conversion or hand-insertion.