The wafer is a type of electrical connector that is typically thin, flat, and designed to connect electronic components on a printed circuit board (PCB). These connectors are called “wafer” connectors because they often resemble thin wafers in terms of their shape and size.

Key features of wafer connectors include:

• Compact Design: Wafer connectors are designed to be compact and space-saving, making them suitable for applications with limited space.
• Multiple Contacts: They typically have multiple contact points (pins or sockets) on a single row or multiple rows. The number of contacts can vary depending on the specific connector.
• Low Profile: They have a low profile, which means they sit close to the PCB, reducing the overall height of the assembled components.
• Board-to-Board Connection: Wafer connectors are commonly used for connecting one PCB to another, making them useful in applications such as connecting daughter boards to main boards in electronics.
• IDC (Insulation Displacement Connection): Some wafer connectors use IDC technology, where the contacts are pressed into the insulation of flat cables without the need for soldering.

wafers are mainly used in power systems, communication networks, financial manufacturing, elevators, industrial automation, medical equipment, office equipment, home appliances, military manufacturing, etc.

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