Obsolete — sourcing through surplus channels
The 1.5KE100A-B is listed as Obsolete by Diodes Incorporated. Availability and date-code spread are confirmed at quote time against the specific quantity required.
Protection window and pulse rating
The reverse standoff voltage of 85.5 V means the device does not conduct at normal DC bus levels up to that point; breakdown occurs between 95 V minimum and the clamping ceiling. This suits 48 V to 72 V DC rails where a 100 V rated line needs transient protection without false triggering.
Package and thermal environment
Housed in a DO-201AA (DO-27) axial-lead package, the through-hole body is rated for junction temperatures from -55°C to 175°C. The axial leads suit point-to-point wiring or through-hole PCB mounting with standard 1.0 mm diameter holes. Bulk packaging means parts are loose in a bag or box — no tape-and-reel, so hand-insertion or tube-fed assembly lines require a feeder change.