Clamping voltage and pulse current — the protection envelope
The 1.5KE13A R0G: The standoff is the DC bus voltage the diode blocks without conducting leakage; for a 12 V rail, this part holds off normal operation and only clamps when the transient exceeds the breakdown threshold.
Package and thermal endurance for through-hole assembly
Housed in a DO-201AA (DO-27) axial-lead package, the 1.5KE13A R0G is a through-hole part suited for point-to-point wiring or PCB mounting with lead forming. The DO-201 body handles the 1500 W pulse without exceeding the junction temperature ceiling of 175 °C, provided the lead length and copper pad area keep the thermal path short. The operating temperature range spans -55 °C to 175 °C, covering industrial and some military-grade environments. No power line protection feature is built in — this is a pure transient suppressor, not a crowbar or filter device.
Active production and sourcing posture
Taiwan Semiconductor Corporation lists the 1.5KE13A R0G as Active in production.