Device identity and key parametrics
The D5V0H1U2LPQ-7B is a single-channel unidirectional Zener TVS diode from Diodes Incorporated, housed in the X1-DFN1006-2 package (0402 footprint). Rated for 350 W peak pulse power (8/20 µs waveform), it clamps transients at 14 V maximum with a peak pulse current of 25 A.
The 190 pF capacitance at 1 MHz is low enough for high-speed signal lines (CAN, LIN, USB 2.0) without degrading edge rates.
The X1-DFN1006-2 (0402) package is a surface-mount footprint with a 0.65 mm pitch — it sits flush on the PCB and requires standard reflow soldering. No power line protection feature is built in; this is a signal-line TVS, not a rail clamp for power distribution.