640505-4 Connectors, Interconnects

640505-4 Application Field and Working Principle

The 640505-4 is a rectangular connector header specific for industrial use. It is typically mated with a female component containing PC board contacts in rows. It is often used in printed circuit applications due to its relatively low insertion and withdrawal forces.

Overview of the 640505-4 Connector

The 640505-4 connectors are a type of rectangular connector manufactured by TE Connectivity. They are available in 3, 6, and 9 positions, rated up to 12A maximum current and with various contact styles and plating combinations. The header is made of (UL 94V-2) nylon, except for the contact, which is made of a tin-plated phosphor bronze material.

These connectors are often used in applications that are exposed to shock and vibration, and their construction ensures reliable connections, which can be reused multiple times. Moreover, as a 2.54mm pitch design, they provide direct compatibility with existing PC board layouts.

Connector Body

The connector body is a flat metal sheet with a shallow channel to accept the contacts. It is made of stamped phosphor bronze or palladium-platinum-iridium plated copper material, which gives high electrical and mechanical performance as well as providing a high contact area distribution throughout the board.

The connector body is also capable of dissipating heat, and it features strain relief to make sure that the electrical contacts are always properly connected.

Contact Design

The contact used in the 640505-4 is a pin-type, and is made of a tin-plated phosphor bronze material. The contact design includes an internal solder cup, which makes it easy to solder the contacts together. The contact also features a series of double "fingers" which ensure proper contact retention and prevent breaking any plastic components during mating.

The contact is capable of carrying up to a peak current up to 12A maximum, and is designed to provide a reliable connection with the board. The contact also ensures a low insertion and withdrawal forces which makes it easier to insert and remove the connectors, and its small size makes it suitable for use in tight spaces.

Dimensions

The 640505-4 connectors have a 3.2mm pitch, making them compatible with most existing devices and boards, and are available in 3.3mm, 3.4mm, and 3.5mm heights. They have a wide variety of contact styles, including straight, through-hole, surface mount, crimp and more.

Applications

The 640505-4 connectors are commonly used in applications such as automotive, industrial, telecommunications, computer peripherals, instrumentation, consumer electronics, and many more. They can also be used to create custom cable assemblies, as multiple mating or breakaway configurations are available.

Other applications for the 640505-4 include power supplies, power conditioners, power monitors, and any application requiring a low-current interconnection.

Conclusion

The 640505-4 connector is a versatile and reliable connector which is widely used in many industries due to its reliable performance, low insertion and withdrawal forces, and compatibility with a wide variety of devices and boards. With its multiple contact styles and plating options, it is an ideal choice for many applications.