Transient protection for 188 V rails — 600 W in an SMB footprint
It delivers 600 W peak pulse power (10/1000 µs) and clamps at 388 V maximum, with a peak pulse current rating of 10.3 A under the 8/20 µs waveform. The single bidirectional channel protects against surges in both polarities, making it a straightforward fit for AC line rectified rails, industrial power supplies, and telecom equipment where space on the board is tight.
What the 388 V clamp means for your downstream circuitry
The 388 V clamping voltage is the ceiling the TVS holds during a surge event. If your downstream DC-DC converter or load has an absolute maximum input below 388 V, you need additional series impedance or a higher-rated TVS. For 188 V rails (typical in three-phase industrial rectifiers or PoE++ injectors), the 209 V minimum breakdown provides a comfortable guard band against normal line ripple. The 10.3 A peak pulse current at 8/20 µs covers common IEC 61000-4-5 surge levels for equipment rated below 600 W.
No power line protection is built in — this is a pure transient suppressor, not a crowbar or overvoltage protector.