The 5KP100CA-G is a bidirectional Zener-based transient voltage suppressor — the "CA" suffix confirms it clamps symmetrically in both polarities, making it the right fit for AC rails or any node that sees reversible transients. At 5 kW peak pulse rating, it handles the larger surge events that smaller unidirectional TVS parts cannot. Operating junction temperature runs to 150 °C, so the part tolerates the thermal headroom that comes with absorbing a real transient hit without derating to zero.
R-6 axial through-hole — board assembly fit
The R-6 axial package mounts in a through-hole footprint — the lead diameter and body dimensions are the standard DO-201AD form that fills most legacy TVS sockets and panel suppressors. Tape-and-box packaging ships the part oriented for radial insertion equipment, which is the typical orientation for high-volume assembly. The axial leads also allow hand-soldering or chassis mounting without a pick-and-place footprint constraint.
General-purpose protection — where it sits in the panel
Listed for general-purpose applications, meaning no specific automotive AEC-Q or industrial safety certification on this base part number — the buyer should confirm whether the end equipment requires a qualified suppressors list before committing to a BOM. The 100 V standoff rating positions it above the common 24 V and 48 V DC rails it might guard, leaving adequate headroom above the working voltage so the TVS does not clip normal operation. The 162 V clamping ceiling protects downstream semiconductors against transients that exceed that level.