A 20-pin box header is a type of electrical connector commonly used in electronic devices to connect printed circuit boards (PCBs) and other components. The header consists of a rectangular plastic housing with 20-pins arranged in two rows of seven pins each. These pins are typically made of phosphor bronze with a tin plating, providing good conductivity and resistance to corrosion.

The header is designed for straight-through mounting on a PCB, meaning that it is inserted directly into the board’s through-holes and soldered in place. Its compact size makes it ideal for use in applications where space is limited, and its high-density pin configuration enables it to handle a large number of connections in a small area.

The header’s operating temperature range of -40°C to 105°C allows it to be used in a wide range of environments, and its UL94V-0 rated plastic housing provides excellent flame resistance. The header’s 20-pins provide a reliable and secure connection for data, power, and other signals, making it a popular choice for many types of electronic devices.