85757-1201

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Backplane connectors are used to connect one or many daughter boards (devices) with one or more mother boards. The 85757-1201 series is a special type of backplane connector that is configured specifically to meet the needs of high-speed, low-profile applications. This connector type provides a compact footprint, power drive capability, and space saving polarization features.

Specifications

The 85757-1201 series is a low profile, surface mount connector with a nominal distance between the two rows of contacts. It has a 1.27mm pitch, with 51 positions, and a 0.42”Amphenol housing height. It has a contact current rating of 4.2A, and a maximum operating temperature of +105°C. The maximum insertion force is 200g.

Application Fields

The most common applications for the 85757-1201 series are air bag systems, audio-visual and security systems, automotive and consumer electronics, cellular/portable radio systems, data communications systems, instrumentation and measuring equipment, PCB assembly systems, and PC and consumer desktop systems. It is also suitable for applications such as floppy diskettes, inkjet printers, and LAN switching.

Working Principle

The working principle of the 85757-1201 series backplane connector is fairly simple. The two rows of contacts are interlocked in a manner that ensures a snug fit when plugged together. One row of contacts serves as the male contact, while the other row serves as the female contact. When the male contacts and female contacts are plugged together, a physical metal to metal connection is formed. This connection ensures that the two sides of the connector are reliably connected.

The connector is designed so that the female contacts have a higher current rating than the male contacts. This ensures that the female contacts will be able to handle higher currents without becoming damaged or overheating. The connector also helps to conserve space by eliminating the need for extra wiring.

Conclusion

The 85757-1201 series backplane connector is an ideal choice for high-speed, low-profile applications where space is at a premium. Its compact footprint and power drive capability make it an ideal choice for applications such as air bag systems, audio-visual and security systems, and instrumentation and measuring equipment. The connector’s working principle is simple and efficient, and it ensures reliable connections and power conservation.

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