1500 W bidirectional transient suppressor in a DO-201 axial package
The 1.5KE39CA B0G is a bidirectional TVS diode from Taiwan Semiconductor's 1.5KE series, designed to clamp transients up to 1500 W (10/1000 µs) in a single DO-201 axial leaded package.
This means a transient on a 33.3 V rail will be held below 54 V, well within the typical 60 V abs-max of downstream DC-DC converters.
Active production — no end-of-life watch needed
The DO-201 (DO-27) axial package is a through-hole form factor that mates with standard 0.040-inch diameter lead holes on a 0.300-inch pitch — no footprint change from legacy 1.5KE parts.