D38999/26FJ11PC

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The D38999/26FJ11PC is a high-performance, circular, multi-pin connector widely used in military, aerospace, and commercial applications. It is manufactured in accordance with MIL-DTL-38999 Series III Specifications and is an upgrade of the MIL-DTL-38999 Series II. The D38999/26FJ11PC is an aluminum alloy shell with a backshell and a threaded jam-nut-style rear insert. It has a variety of contact arrangements ranging from 11 to 44 contacts and is designed for cables from 0.150 to 0.640 inches in diameter.

Applications

The D38999/26FJ11PC connector is suitable for a variety of commercial and military applications, including aircraft systems, avionics, communication, power distribution, and instrumentation systems. It is also frequently used in military ground vehicles, navigation and other systems, as well as medical, industrial, and consumer electronics equipment. It is compliant with hazardous environment specifications such as the “high-flex” requirements of the U.S. Navy and other military services.

Working Principle

The D38999/26FJ11PC connector utilizes high-performance quadrax contact technology. The quadrax contacts are pre-loaded into the connector housing and extend into the mating cavity, providing efficient metal-to-metal contact and ensuring reliable electrical connection. The contact body is equipped with four spring fingers, which ensure that it remains firmly attached to the cable when connected and prevents any contact misalignment or isolation. An internal retainer clip helps retain the insert when the assembly is wired and provides 360° coverage.

The contact’s retention force and high-current capability make it suitable for a variety of high-vibration and shock environments, while ruggedized construction ensures outstanding performance in harsh conditions. The high-reliability design of the contact ensures it is repairable and its inherent vibration resistance ensures a reliable connection for long-term operation. The contact is also designed to ensure EMI suppression, reducing the risk of interference or other signal degradation.

Advantages

The D38999/26FJ11PC connector offers a wide variety of advantages over other connectors, including high electrical performance, a rugged design, and high reliability. Its high-performance contacts provide maximum current handling capability, ensuring the connector is capable of carrying even the highest current loads while providing superior EMI protection. The ruggedized construction ensures it is able to withstand harsh environmental conditions, while the reliable contact design provides reliable operation in high-vibration and shock environments.

The connector is also designed to allow for easy repair and rework, ensuring that it is able to adapt easily to any changes in the system. The wide variety of contact arrangements available makes this connector suitable for a wide range of applications, while its small size ensures it is able to fit into tight spaces. Finally, its aluminum alloy construction ensures it boasts superior mechanical strength and corrosion resistance.

Conclusion

The D38999/26FJ11PC connector is a high-performance, circular, multi-pin connector suitable for a variety of military, aerospace, and commercial applications. Its quadrax contact technology provides high-performance current handling capability and reliable electrical connection, while its rugged construction ensures significant durability in high-vibration and shock environments. The connector’s wide array of contact arrangements and 20-pin design makes it an ideal choice for a diverse range of applications, while its small size and aluminum alloy construction ensures superior mechanical strength and corrosion resistance.

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