TVS Low Capacitance ESD Protection Diode onsemi TVS Low Capacitance ESD Protection Diode is a transient voltage suppressor designed to protect high speed data lines from ESD. Ultra-low capacitance and low ESD clamping voltage make the onsemi TVS Low Capacitance ESD Protection Diode an ideal solution for protecting voltage sensitive high speed data lines. The flow-through style package allows for easy PCB layout and matched trace lengths necessary to maintain consistent impedance between high speed differential lines such as USB 3.0 and HDMI.