Clamping and capacitance for signal-line protection
The ESD9X7.0ST5G: This is a single-channel Zener ESD protection diode with a reverse standoff voltage of 7V (Max) and a clamping voltage of 25V at a peak pulse current of 4A (8/20µs waveform). The 65pF capacitance at 1MHz is low enough to preserve signal integrity on high-speed interfaces such as USB 2.0, where excessive capacitive loading would degrade the eye diagram.
Rated for operation from -55°C to 150°C junction temperature, the ESD9X7.0ST5G suits environments from cold-start automotive to hot industrial enclosures. The SOD-923 package is a surface-mount footprint — a compact option for dense PCB layouts.