Transient suppressor for 8.55V rails – 1500W clamp at 14.5V
The 1N6271AG is a unidirectional Zener TVS diode from onsemi's Mosorb™ series, rated for 1500W peak pulse power. Its 8.55V reverse standoff voltage makes it a fit for protecting 5V or 8V DC buses from transients up to 14.5V clamping. The DO-201AD axial package is a through-hole form factor common in industrial power supplies and telecom line cards where board-level surge protection is needed.
Obsolete – plan for replacement or last-time buy
onsemi has marked the 1N6271AG as Obsolete. No official successor is listed in the available records. For new designs, consider a current-production TVS with similar 1500W rating and 8.55V standoff in a comparable package. For existing BOMs, remaining inventory is the only source – we can source and quote to order against your quantity.
Through-hole assembly and temperature range
The axial package requires a through-hole PCB footprint with adequate copper area for heat sinking during pulse events. Operating temperature spans -65°C to 175°C junction, covering industrial and some automotive under-hood environments.