The SR05 with SOT-143-4 is a four-terminal ESD Protection Device manufactured by TECH PUBLIC. It features low capacitance and low clamping voltage, allowing it to effectively provide protection from short bursts of high voltage and electrostatic discharges. It is an RoHS compliant device, meaning it does not contain hazardous materials or substances that are harmful to the environment. The SR05 also features a low power dissipation which helps to reduce power consumption during regular operations. Additionally, it can perform well in both low and high frequencies, making it suitable for a variety of applications.