What the ratings mean for the BOM
The 1.5KE130A-B: Its 111 V reverse standoff voltage means it sits across a 100 V or 110 V rail and stays transparent until a transient pushes above 124 V (the minimum breakdown voltage), at which point it clamps the surge to 179 V maximum while shunting up to 8.4 A of peak pulse current (10/1000 µs waveform).
Package and mounting — DO-201 axial leaded
The 1.5KE130A-B comes in a DO-201AA / DO-27 axial-lead package (supplier device package DO-201). It is a through-hole mount, delivered in bulk (tube or bag, not tape-and-reel). The axial leads are suited for point-to-point wiring or PCB through-hole soldering. The package body is rated for the full 1500 W pulse without derating at 25°C ambient; above that, derating follows the standard power-temperature curve for axial-lead TVS diodes.