The 1.5KE33CAHE3_A/C: The junction temperature range spans -55°C to 175°C, covering the underhood and engine-bay ambient profile where a 105°C soak is routine and 150°C peaks occur during hot-soak shutoff.
28.2 V standoff, 45.7 V clamp — the protection window for a 24 V nominal rail
On a 24 V truck battery line, this handles the inductive kick from a solenoid or a 12 V cold-crank dip that rings back above the rail.
Bidirectional, single channel — polarity-agnostic clamping for AC or reverse-voltage lines
One bidirectional channel suppresses transients of either polarity — useful on AC-coupled signal lines, CAN bus pairs, or 24 V power inputs where reverse-battery protection is handled elsewhere. Power line protection is not supported, so do not use this as a mains surge suppressor; it is a signal- and low-power-rail TVS. The DO-201AA axial package is a through-hole footprint that mates with existing board layouts. Tape & Reel packaging supports axial-component auto-insertion for volume builds.