89891-424H

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Rectangular connectors are designed to secure, connect, and disconnect for a wide range of applications. Within the category of rectangular connectors, headers, receptacles, and female sockets make up a type of electrical connector. The 89891-424H is a relatively new connector from such a category, and its application field and working principle are discussed in this article.

The 89891-424H is designed and manufactured in accordance with MIL-DTL-83537 and closely adhering to the requirements of the NASA Low-shock Electrical Connectors Standard. It is an interlocking connector system with a bayonet coupling in which the headers have 20 pins and the receptacles have 20 sockets, with polarized latching keyways for precise mating and secure locking. It can be applied in the medium-rate signal, power and data applications.

The 89891-424H is primarily constructed of aluminum alloy and high-temperature insulation. As one of the most reliable rectangular connectors, it is certified to perform in temperature ranges of -65 °C to +175 °C, at an operating voltage of 600 VAC, and also displays excellent electrical characteristics such as high contact resistance and low insertion loss. It is especially suitable for space flight vehicles, robotics, communications, medical instruments, audiovisual instruments, and more.

Working on the 89891-424H requires fewer components for installation purposes, measuring just between 2" and 4" in length, with a width of .328" and a height of .425". Additionally, the 89891-424H is quick to swap out, the two plugs disconnecting in about 0.01 seconds and reconnecting in 0.04 seconds. Furthermore, the locking design will ensure a positive connection.

When the header and receptacle are mated, a ridge on the outer edge of the receptacle’s shell adheres to a groove in the header’s shell in an interlocking manner. The plug’s terminals are then connected through the contact interface. After the connection is made, the plug’s symmetrical keyway on both the header and receptacle allows them to be aligned precisely and easily, and the connector quickly locked into position by turning the latch clockwise.

Furthermore, the 89891-424H provides a high level of protection against corrosion, dust, dust-water, and shocking. The main components of the plug are resistant to certain chemicals, and any sharp edges are enclosed with an ingenious structure the prevents physical damage. The 89891-424H also has a wear-resistant design that is capable of sustaining a large number of mating cycles.

Overall, the 89891-424H is an innovative, durable, reliable, and easy to use rectangular connector. It features a reliable bayonet coupling design for secure locking, and its minimal length, width, and height make it suitable for many applications from space flight vehicles to robots. This connector provides excellent electrical characteristics, a high level of protection, and can easily be swapped out when needed.

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