Integrated high-performance protection diodes protecting appliances against ElectroStatic Discharge (ESD) of ±30 kV, far exceeding IEC 61000-4-2 level 4 standard, overvoltage and wrong polarity. Each device includes one high-level ESD protection diode in a 4-channel 0.4 mm (IP438xCX4) or 0.5 mm (IP4085CX4) pitch Wafer Level Chip-Size Package (WLCSP). The anode and the cathode of ESD protection diode are each connected to two solder balls.