The RCLAMP0504S.TCT is an ESD (ElectroStatic Discharge) suppressor manufactured by Semtech. It is a low capacitance TVS diode array that is designed to provide protection against electrostatic discharge (ESD) in sensitive electronic devices. It has a low capacitance range of 0.4-0.5 picofarads, and is capable of withstanding up to 20kV (IEC 801-2) discharges per the JEDEC Standard JESD22-A115C. It also has an operating voltage range from 5.0 to 43V, and an ESD clamping voltage of 5.4V Max. The RCLAMP0504S.TCT is designed to protect a wide range of high-bandwidth communication interfaces, including HDMI, USB, and Ethernet.