749108-9

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D-Sub, D-Shaped Connectors - Accessories

D-sub connectors, also known as D-shaped connectors, have long been one of the most popular, cost-effective, and durable connector types in use today. With their distinctive shape, D-sub connectors are one of the easiest types of connectors to identify. The 749108-9 is a part of the D-sub family, and is specifically designed for a variety of applications and environmental requirements. This article will explore the 749108-9\'s application field and working principle.

Application Field

The 749108-9 has a broad range of potential applications. It is designed to work within a temperature range of -55°C to + 125°C, making it well-suited for high-temperature applications such as automotive and industrial uses. Additionally, the connector features a vibration resistance that is rated to MIL-STD-202F standards, further expanding its usefulness. Finally, the connector is manufactured to meet SAE specifications, and is designed to work in both harsh and benign environments. This combination of features makes it suitable for a wide range of applications.

Working Principle

The 749108-9 features two primary components: the housing and the contact plate. The contact plate is housed within the connector body and is made up of two metal insert pins and multiple plastic sections. When the connection is made, the pins pass through the plastic sections and make contact with the metal contact of the other connector, forming an electrical connection. The plastic sections work together to secure the connection, preventing the pins from being pulled out. This contact system is designed to provide a reliable, low-friction connection.

The connector is secured to the board by its four mounting holes. The mounting holes align with the mounting holes of the board, creating a secure fit that prevents the connector from vibrating or becoming displaced. These mounting holes also help to ensure that the connector maintains the connection, as any movement of the board or connectors will cause the mounting holes to shift apart, thus preventing the connection from loosening.

Conclusion

The 749108-9 is a part of the D-sub family of connectors and is designed to work in both high-temperature and harsh environments. Its two primary components - the housing and the contact plate - are designed to provide excellent electrical connections, while its four mounting holes ensure the connection remains secure even under vibration or other environmental stresses. This combination of features makes the 749108-9 an excellent choice for a wide range of applications.

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