Board to board connectors are a type of electrical connector used to connect two printed circuit boards (PCBs) together. They are used in a variety of applications, from consumer electronics to industrial automation. Board to board connectors come in a variety of shapes, sizes, and configurations, and can be classified into several different types.

The most common type of board to board connector is the pin header. Pin headers are typically used to connect two PCBs together, and are available in a variety of sizes and configurations. They are typically made of plastic and feature a series of pins that are inserted into the PCBs. Pin headers are often used in consumer electronics, such as computers and cell phones.

Another type of board to board connector is the board-to-board connector. These connectors are designed to connect two PCBs together without the need for soldering. They are typically made of metal and feature a series of pins that are inserted into the PCBs. Board-to-board connectors are often used in industrial automation applications, such as robotics and automation systems.

The third type of board to board connector is the board-to-cable connector. These connectors are designed to connect a PCB to a cable, such as a USB cable or an Ethernet cable. They are typically made of metal and feature a series of pins that are inserted into the PCB and the cable. Board-to-cable connectors are often used in consumer electronics, such as computers and cell phones.

The fourth type of board to board connector is the board-to-wire connector. These connectors are designed to connect a PCB to a wire, such as a power wire or a signal wire. They are typically made of metal and feature a series of pins that are inserted into the PCB and the wire. Board-to-wire connectors are often used in industrial automation applications, such as robotics and automation systems.

The fifth type of board to board connector is the board-to-panel connector. These connectors are designed to connect a PCB to a panel, such as a control panel or a display panel. They are typically made of metal and feature a series of pins that are inserted into the PCB and the panel. Board-to-panel connectors are often used in industrial automation applications, such as robotics and automation systems.

Finally, the sixth type of board to board connector is the board-to-enclosure connector. These connectors are designed to connect a PCB to an enclosure, such as a case or a box. They are typically made of metal and feature a series of pins that are inserted into the PCB and the enclosure. Board-to-enclosure connectors are often used in industrial automation applications, such as robotics and automation systems.

In summary, board to board connectors can be classified into six different types: pin headers, board-to-board connectors, board-to-cable connectors, board-to-wire connectors, board-to-panel connectors, and board-to-enclosure connectors. Each type of connector is designed for a specific application, and can be used to connect two PCBs together in a variety of ways.