The 0303406 is a black, female test connector designed to replace a standard bridge screw, enabling voltage pick-off on bridged terminal groups. Made from brass, it features a 4.00 mm pin diameter and compact dimensions of 6 mm by 6 mm. This component is engineered to function in an ambient operating temperature range of -40 °C to 80 °C. It is specifically tailored for applications within the power supply industry, providing a secure and convenient test point.