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643426-3 Application Field and Working Principle

Rectangular connectors are connectors specifically designed to fit into the shape of a rectangle in order to create connections or make electrical or mechanical connections. Rectangular connectors come in many types, including headers, receptacles, female sockets, and more. The 643426-3 is a screw locking header from the 3M 3-Series range, designed for rugged industrial applications.

643426-3 Application

The 643426-3 rectangular connector is designed to interface with board-level electronics, providing secure connections and mounting flexibility. The connector’s rugged construction makes it suitable for harsh industrial environments and applications. The 643426-3 is resistant to UV light, vibration, and extreme temperatures ranging from -55C to 105C.

643426-3 Working Principle

The 643426-3 features dual row connectors designed with 8 contacts in PCB spacing design, a pitch of 0.100”, and contact diameter of 0.050”. The contacts have a 9A AC/DC current rating, 10V AC/DC voltage rating, an operational temperature range of -55C to 105C, and a contact resistance of 0.0003Ω. The housing material is polypropylene, with glass-filled thermoplastic for added durability. The 643426-3 also offers polarization, making it easier to mate with a pre-assembled crimp connector.

The 643426-3 uses a screw-lock retention system, which provides a secure connection when mating with a corresponding female socket or receptacle. The easily adjusted and tightened screws ensure that the connection is secure and protected from damaging vibrations.

Conclusion

The 643426-3 rectangular connector is designed for rugged industrial applications and provides secure connections for board-level electronics. Its dual row 8 contacts in PCB spacing design, a pitch of 0.100”, and contact diameter of 0.050” make it ideal for these applications. The connector is resistant to UV light, vibration, and extreme temperatures and features a screw-lock retention system. For these reasons, the 643426-3 is an ideal choice for secure and reliable connections in rugged industrial applications.

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