1500 W bidirectional transient suppressor
The 1.5KE510CA: The 2.1 A peak pulse current rating (Ipp) at the clamping voltage tells you the diode can sink that surge current without exceeding its junction temperature limit. For a 1500 W part, the actual energy handling depends on the pulse duration — shorter transients allow higher peak current, but the 10/1000 µs waveform is the industry-standard benchmark for comparing TVS diodes.
Through-hole DO-201 package and temperature range
Housed in a DO-201AA (DO-27) axial leaded package, the 1.5KE510CA is a through-hole part suited for point-to-point wiring or PCB mounting with lead forming. The bidirectional configuration (single channel) means it clamps both polarities with one device — useful on AC signal lines or DC rails where reverse polarity is a risk.