What this TVS protects and where it goes
The 600 W peak pulse power rating (10/1000 µs waveform) handles load-dump and inductive-load spikes common in automotive 24 V and 12 V battery-rail environments, as well as industrial sensor and actuator lines where symmetrical clamping is needed.
AEC-Q101 and the operating range
The 600 W peak pulse rating is derated linearly above 25°C per the datasheet curve — at 150°C junction the effective power handling drops, but the device still provides meaningful protection for continuous high-temperature operation. No power-line protection is built in; this is a transient suppressor, not a continuous overvoltage clamp.