OnChip Devices introduced its models ESD2100-02 and ESD2100-04 low capacitance ESD protection devices for single and dual USB ports. They protect the two data lines and the power rail of the USB 2.0 high speed interface. The low sub-1pF line-capacitance of the devices ensures minimal distortion of the 480-Mbit/s USB 2.0 signal. They offer optimum trade-off between low line-to-ground capacitance and compliance with IEC61000-4-2 level 4 (air discharge up to 15 kV, contact discharge up to 8 kV). The additional ESD diode between the Vcc and ground prevents charging of the supply line.