1857167-2

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Rectangular connectors, also known as headers, male pins, and solderless terminals, are a group of cost-effective and reliable electrical connectors that are most commonly used for applications such as computers, networking equipment, industrial controls, and automotive electronics. The 1857167-2 rectangular connector is a popular selection that offers robust connection with a variety of mating options.

Design Features

The 1857167-2 connector is a dual-row, single-sided version. It is rectangular in shape and measures 0.156 inches (3.97 mm). It has a standard pitch of 0.100 inches (2.54 mm) between its contacts, and it is offered in various sizes with a total of 10, 15, 20, 25, 30, 40, or 50 contacts. This model has a surface mount design with a thinner profile that is compatible with pick-and-place production methods.

The 1857167-2 connector is designed to meet the requirements of a variety of applications due to its advanced features. It features two levels of contact retention that secure the mating pair. The first level is a double beam that ensures consistent positions and an interference fit between the two contact rows. The second level is a secondary lock that provides additonal strain relief for long-term reliability.

The one-piece plastic construction on the 1857167-2 connector is also designed to provide robust physical protection. The housing is composed of a durable nylon material that offer excellent heat and corrosion resistance. It has a flammability rating of UL94V-110.

Applications

The 1857167-2 series of rectangular connectors is designed to meet a wide range of applications. They can be used in automotive applications such as audio systems, airbag systems, and ABS systems. It is also popular for industrial applications such as LED lighting and displays. It is commonly found in medical devices, computer systems, and various networking equipment.

The 1857167-2 series of connectors have been tested to meet ENV60947 and UL94V-110 standards. It is also designed to meet the IP67 water resistance rating, making it suitable for many harsh-environment applications.

Working Principle

The 1857167-2 connector has two rows of contact pins in electrically isolated areas. The top two rows consist of positive pins and the bottom two rows consist of negative pins. When mated, the contact pins on both connectors line up and create an electrical connection. This establishes a communication signal between the two connected devices.

The 1857167-2 connector features two levels of contact retention. The first level is the double beam contact system which ensures a consistently snug fit between the two sets of contacts. This system also helps to reduce stress on the contacts. The second level of contact retention is the secondary lock system which provides additional strain relief by compression fitting the mated parts together.

Conclusion

The 1857167-2 rectangular connector is a popular choice due to its reliable connection, robust physical protection, and low cost. It is designed to meet the requirements of a variety of applications, including automotive, industrial, medical, and communication systems. Its dual-row, single-sided design and two levels of contact retention ensure a reliable connection between the two mated devices.

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