1500 W peak pulse in a DO-201 axial package
The 1.5KE27A-T: Its 23.1 V reverse standoff voltage and 25.7 V minimum breakdown voltage place it in the 24 V rail protection class — suitable for clamping transients on 24 VDC supply buses in industrial control panels, telecom gear, and general-purpose power distribution.
Obsolete — sourced through surplus channels
Diodes Incorporated lists the 1.5KE27A-T as obsolete. This part is available through independent surplus and excess-inventory channels. Sourcing is lot-specific — date-code spread and packaging condition (sealed reels vs cut tape) are confirmed at RFQ.
Temperature grade and mounting
Rated for continuous junction temperatures from -55°C to 175°C, the device suits high-ambient environments such as outdoor telecom cabinets or under-hood automotive modules where the TVS must survive under bias near the thermal limit. Through-hole DO-201AA (DO-27) axial package — the leads are tin-plated copper, compatible with wave-solder assembly. The body length and lead diameter match standard 1.5KE series footprints; no board layout change from other 1.5KE parts.