LBP01 LED Bypass Protection Devices STMicroelectronics LBP01 LED Bypass Protection Devices are bypass switches to be connected in parallel with 1 or 2 LEDs. In case of LED failure, this allows the current to flow through the other LED. These devices also provide an overvoltage protection against surges defined in IEC 61000-4-2 and IEC 61000-4-5. STMicroelectronics LBP01 protects LEDs against surge and they are compatible with LEDs up to 1A.