660 W peak pulse in a 0402 footprint
The D5V0S1US2LP-7B: Its 660 W peak pulse power rating (8/20 µs waveform) is unusually high for the 0402 / U-DFN1006-2 package — the energy density comes from the silicon die, not the package size. This is a transient suppressor, not a voltage reference — the 260 pF capacitance at 1 MHz is too high for high-speed signal lines but irrelevant for power-rail protection. The -55 to +150 °C junction temperature range covers automotive under-hood and industrial ambient extremes without derating the peak pulse power.
Board-fit and supply posture
The U-DFN1006-2 (Type B) package measures 1.0 mm × 0.6 mm with a 0.50 mm pitch — the same footprint as a standard 0402 chip resistor or capacitor. The PCB land pattern matches the Diodes application note for the DFN1006-2; the exposed die attach pad on the bottom side should be soldered to the cathode trace for thermal conduction. The part is unidirectional (single channel), so polarity matters — the cathode mark on the package must face the rail being protected.