What the 1500W rating means on a real line
The 1.5KE110A-B: For a 94V standoff line, it starts conducting at 105V breakdown and hard-clamps at 152V maximum, so equipment rated for 150V transients sees a safe ceiling. The 9.9A peak pulse current at the clamp voltage confirms the diode can handle a substantial fault without failing short — useful on 48V telecom or 72V industrial DC buses where inductive kickback is common.
Diodes Incorporated lists the 1.5KE110A-B as obsolete. No pin-compatible direct replacement is documented, so a new-design BOM should evaluate the broader 1.5KE series or a different TVS family with matching standoff and clamp voltages.
Field-swap friendly — through-hole axial package
Housed in a DO-201AA / DO-27 axial leaded package, this part is a through-hole mount — no hot-air station needed. On a customer site, you can desolder and replace it with a standard iron and solder sucker. The axial leads are clearly polarized; the cathode band is marked on the body, so orientation is obvious even without the datasheet in hand.