1500 W peak pulse — clamping and breakdown parametrics
The 1.5KE20A-HF: Its 17.1 V reverse standoff voltage means the protected line stays below the leakage threshold under normal operation, while the 19 V minimum breakdown voltage ensures the device starts clamping before the transient exceeds the downstream component's abs-max rating. For a 24 V rail, the 27.7 V clamp sits well below typical semiconductor breakdown thresholds, providing a clean crowbar action.
Through-hole DO-201 package — board-fit and temperature range
Housed in a DO-201AA (DO-27) axial leaded package, the device mounts through-hole with a 0.9 mm lead diameter — compatible with standard 1.0 mm PCB holes. The DO-201 footprint is common across the 1.5KE family, so a single board layout serves multiple voltage variants. No power line protection is built in — this is a unidirectional transient suppressor for signal or low-voltage DC rails.
Active production — sourcing and compliance
The part is supplied in Tape & Box (TB) packaging, suitable for hand-insertion or selective soldering.