91900-21241

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91900-21241 Rectangular Connectors - Arrays, Edge Type, Mezzanine

Rectangular connectors are primarily used as mated connectors in boards-to-boards applications, such as between printed circuit boards, backplanes, PCBs, and other devices. They can also be used to connect internal bus signals in electronic systems. Rectangular connectors are typically found in cable-to-board, wire-to-board, or PC board-to-board applications in a diverse range of industries.

Application Field

Rectangular connectors are found in a variety of applications, including:

• Computers: in computers, such as motherboards, edge connectors and backplanes are used to transfer signals from and to the processor.
• Consumer electronics: in consumer electronics for transferring data and signals.
• Industrial: in the heavy industry, they are used for transmission of data and electrical signals.
• Medical: in medical technology, they are used for interconnecting cables and power supplies.
• Instrumentation: rectangular connectors are also used in instrumentation systems, including temperature, pressure and humidity sensors.

Working Principle

Rectangular connectors use electrical contacts to transfer electrical signals, data, and power from one device to another. The contact design of rectangular connectors take several shapes and sizes, and can include blades, pins, and receptacle contacts. The connectors may also include additional features, such as polarization, mating guides, and dust covers, which help ensure a secure connection and extend the life of the product.

Rectangular connectors come in different sizes and shapes, and the size used depends on the application. For board-to-board applications, mezzanine-style rectangular connectors are the most commonly used. These connectors feature a row of daughter connectors that are mated to a parent connector. The daughter or side connectors have printed circuit board receptacle contacts on the mating side.

The connectors are characterized by their pitch, which is the distance between header pins, as well as the number of contacts. It is important to select a connector with the right pitch and number of contacts to ensure a secure connection. For example, the 91900-21241 rectangular connector has a 3.96mm pitch, 6-rows and 122 contacts.

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