Clamping parameters and temperature range
The 1.5KE18CA B0G: Breakdown occurs at 17.1 V minimum, so a rail sitting at 15.3 V has roughly 1.8 V of headroom before the diode starts conducting leakage current — enough margin for normal ripple on a 12 V bus without nuisance clamping. The DO-201AA axial package (also listed as DO-27) is a through-hole leaded form factor — easy to hand-replace on a board with a soldering iron or hot-air station, and the body markings clearly show the cathode band for orientation.
Active production and sourcing posture
For volume procurement, pricing and lead time are confirmed at RFQ time.