Bidirectional protection in a single DO-201 package
The 1.5KE130CA R0G: One bidirectional channel handles both positive and negative surges without needing two diodes back-to-back — the 8.7 A peak pulse current rating (8.7 A at 179 V clamp) is the same in both polarities. The DO-201AA axial package (DO-27 equivalent) is a through-hole form factor that suits point-to-point wiring or PCB mounting with a 0.3-inch lead spacing. The 1500 W rating holds across this range, though derating above 25 °C ambient follows the standard exponential curve.