AT04-4P

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AT04-4P Application Field and Working Principle

Introduction

AT04-4P rectangular connectors are a type of housing used to join multiple electrical components and circuits together. It is designed for use in the electrical automotive, aerospace, and other harsh environment industries. These connectors have a 4-way pin-and-socket configuration with 12 contacts and are IP67-rated for water and dust tightness.

Features

The most prominent feature of the AT04-4P is its ability to serve a variety of purposes depending on the needs of the application. This versatile connector offers several contact arrangements, including 2 power contacts and 10 signal contacts, along with various contact sizes and configurations to meet application requirements. The AT04-4P connector has a very strong connector body which is made of aluminum alloy or polyamide for extra durability and strength to withstand the rigors of harsh environment applications. Other features of the AT04-4P include low contact resistance, high contact reliability, and excellent performance under vibration and temperature extremes.

Applications

The primary applications of the AT04-4P connector are in automotive, aerospace, and other harsh environments where there are a large number of possible electrical connections or where extremely reliable, durable connectors are necessary. Specifically, the AT04-4P connector is used in navigation and guidance systems, on-board communications, medical device and monitoring systems, harsh environment electronics, and nuclear instrumentation.

Working Principle

The AT04-4P connector is based on a pin-and-socket configuration. It features a unique design that allows the connector to arrange contacts in rows and columns. The contacts are made of zinc or silver-plated copper alloy, which provides reliable and consistent contact resistance, reliable cable retention and protection against interruptions, and vibration resistance. The socket features a robust carrier with a flexible latch and eight spring-loaded contact bodies. A contact retention device is incorporated to ensure that the contacts are securely fastened.

The socket contacts are situated at right angles to each other to ensure reliable mating and to enable the maximum number of mating cycles, expressed as “cycles-per-contact”. When mating contacts, a small spring-loaded guide ensures that each contact is firmly pressed against the male pin and not retracted when the plug is withdrawn. The AT04-4P connector offers an additional optional feature, an LED power status indicator light for visual feedback.

Conclusion

The AT04-4P connector is an extremely versatile connector that is ideal for use in harsh environment applications. It offers a variety of contact arrangements and sizes with low contact resistance, high contact reliability, and excellent performance under vibration and temperature extremes. It is a reliable, durable, and user-friendly connector design that is suitable for a wide range of applications.

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