VBUS05L1-DD1 ESD-Protection Diode The Vishay Semiconductor VBUS05L1-DD1 ESD-Protection Diode is a an ultra-compact Bidirectional and Symmetrical (BiSy) device that clamps positive and negative overvoltage transients to ground. Connected between the signal or data line and the ground, the VBUS05L1-DD1 offers a high isolation (low leakage current, lowest capacitance) within the specified working range. Due to the short leads and small package size (height <, 0.4mm) of the tiny LLP1006-2M package, the line inductance is very low so that fast transients like an ESD-strike can be clamped with minimal over- or undershoots. The Vishay Semiconductor VBUS05L1-DD1 ESD-Protection Diode features a single-line with a working range of ±5.5V