749771-3

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D-Sub Connectors

The 749771-3 is a D-sub miniature connector that is commonly used for a variety of applications. It has 3 contacts and is designed for round or flat bottomboard cable assemblies. The connector has a built-in polarization feature to ensure proper mating. The 749771-3 D-sub connectors are available in both the crimp and soldered contact versions.

The 749771-3 D-sub miniature connectors are ideally used in consumer electronics, including personal entertainment devices such as DVD and Blu-ray disc players, HDTVs, home theaters, game consoles, digital cameras, and other digital devices. Other application fields include telecommunication systems, medical equipment, automotive, industrial control, and instrumentation systems.

The 749771-3 D-sub miniature connectors feature a two-piece design, with a outer shell and a screw-lock insert for greater stability. The two-piece design allows for easier assembly and disassembly, as well as better EMI/RFI shielding. The contacts have a gold-plated finish, to ensure better conductivity and corrosion resistance. The shielding layer reduces signal transmission losses.

The working principle of the 749771-3 D-sub miniature connector is simple. It features multiple pin contacts that make electrical contact between two devices when they are mated together. It is designed with a keyed outer shell to ensure the proper mating of the device. The contacts are inserted into the shell, then the shell is connected to the device\'s circuit board. The contacts make electrical contact when they are inserted into the outer shell, completing the connection.

In addition, the 749771-3 D-sub miniature connector is designed with a robust construction, making it suitable for harsh operating environments. The connector has an IP67 protection rating, which ensures dust and water protection. It is also shielded against virtual noise for EMI/RFI protection. The 749771-3 D-sub connector is also UL and CSA approved, ensuring compliance with safety requirements.

To conclude, the 749771-3 D-sub miniature connector is a reliable and versatile solution for a variety of applications. It is ideal for consumer electronics, telecommunication systems, medical equipment, automotive, industrial control, and instrumentation systems. The two-piece design ensures ease of assembly and disassembly, while the gold-plated contacts provide superior conductivity and corrosion resistance. In addition, the UL and CSA certifications ensure compliance with safety requirements. The connector’s robust construction make it suitable for harsh operating environments.

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