Automotive-grade transient suppression in an axial package
The 1.5KE15AH: It clamps transients at 21.2 V maximum with a 12.8 V reverse standoff, making it a fit for 12 V automotive bus protection where the nominal rail sits below the standoff voltage and the clamp triggers before downstream electronics see damage. The DO-201AA axial through-hole package is straightforward to hand-rework — the leads are long enough to dress into a PCB or terminal block, and the body orientation is unambiguous. No special hot-air profile needed; a standard soldering iron with a chisel tip handles the joint.
Clamping window and pulse rating
Breakdown occurs at 14.3 V minimum, clamping at 21.2 V maximum when the 10/1000 µs waveform hits 74 A peak pulse current. The 12.8 V standoff means the diode stays transparent below that rail voltage — no leakage-induced quiescent draw on the battery.
This is the same qualification tier used for under-hood and chassis-domain electronics.