Its 1500W peak pulse power rating (1.5kW) at 10/1000µs waveform gives it the energy capacity for industrial surge events — motor drives, power supplies, and telecom rectifiers are typical deployment environments.
58.9V breakdown, 111V clamp — the protection envelope
The reverse standoff voltage is 53V, meaning the diode stays off below that rail level. Breakdown starts at 58.9V minimum, and the clamping voltage at peak pulse current is 111V maximum — that 111V ceiling is what the downstream circuitry must survive. Capacitance is 850pF at 1MHz — typical for a 1500W-class TVS. That capacitance loads signal lines; on high-speed data interfaces (above a few MHz) it attenuates the edge rate and may need to be factored into the signal-integrity budget.
STMicroelectronics lists the 1.5KE62CARL as obsolete.