The D5V0L4B5SOQ-7 is a 4-channel bidirectional Zener TVS diode array from Diodes Incorporated, designed to clamp transients on signal or data lines running at 5 V or below. With four channels in a single SOT-25 package, it replaces four discrete TVS diodes and saves board area on dense layouts. Rated for a peak pulse current of 6 A (8/20 µs waveform) and clamping to 14 V maximum, it handles the ESD and surge events typical of telecom and automotive interfaces. The 15 pF typical capacitance per channel at 1 MHz keeps signal integrity intact on high-speed lines like USB 2.0 or CAN bus.
Protection ratings and what they mean for your BOM
The 5 V maximum reverse standoff voltage sets the DC operating ceiling — any signal rail at or below 5 V stays within the leakage region. For repetitive surges or longer pulse widths, derate the peak current accordingly; the 6 A figure is tied to that specific waveform. No power line protection — the device is intended for signal-line ESD and surge clamping, not for continuous overvoltage on power rails. The 15 pF capacitance is low enough for most data interfaces up to the tens-of-MHz range.
The small body (roughly 3.0 mm × 1.5 mm) fits into tight layouts alongside connectors or transceivers.