Rocket launch is a systematic project integrating precision manufacturing, extreme environment adaptation, and high reliability requirements. From ground ignition to orbital flight, the stable operation of every component directly determines the success or failure of the mission. Among them, electrical connectors, as the “nerve hub” of the rocket’s electrical system, assume the key mission of controlling signals and transmitting power. Their performance is directly related to the coordinated operation of various rocket systems, and they have extremely high requirements for airtightness, vibration resistance, high and low temperature resistance and other indicators.

Ankeno, which is deeply engaged in the field of high-end precision connectors, accurately grasps the core needs of the rocket field. The independently developed GJB599 Series hermetic electrical connectors are strictly designed and developed in accordance with GJB599B (MIL-DTL-38999L) and the corresponding single detailed specifications of US military standards. They have become the core supporting components for rocket launch missions, safeguarding the aerospace industry with high-reliability connections.

During rocket launch and flight, it needs to face multiple extreme tests: severe vibration during launch, sharp switching of high and low temperatures, airtightness requirements in high-altitude and low-pressure environments, and erosion from complex ground environments such as rain and sandstorms. This poses a severe challenge to the comprehensive performance of electrical connectors. Ankeno GJB599 Series hermetic electrical connectors have specifically broken through technical bottlenecks, and perfectly adapted to the full-scenario application needs of rockets through unique structural design and high-quality material selection.

This series of connectors is mainly divided into two categories: hermetic electrical connectors and through-wall hermetic electrical connectors. Its core advantage lies in its excellent airtight performance — by sintering the contact parts into the socket shell or adapter socket shell, efficient sealing is achieved. When the pressure difference between the two ends of the hermetic socket is 1 atmosphere, the air leakage rate is less than 1×10⁻³Pa·cm/s, which can effectively isolate the entry of external gas and water vapor, avoid erosion of internal circuits, and ensure the stability of signal transmission. At the same time, the supporting plug can adopt a common non-hermetic design, which not only reduces the overall supporting cost but also does not affect the core hermetic performance, taking into account practicality and economy.

In terms of core technical parameters, Ankeno GJB599 Series fully meets the strict standards of the rocket field. In terms of mechanical performance, stainless steel and Kovar alloy are used as shell materials, Fe-Ni-Co sealing alloy as contact materials, combined with fused glass wire sealing body and silicone rubber sealing ring. The mechanical life can reach 500 insertion and extraction cycles, which can withstand an impact of 300g peak acceleration of 3ms half-sine wave, and a sine vibration of 100-2000Hz frequency and 294m/s² acceleration. Even in the severe vibration environment of rocket launch, it can maintain stable connection without falling off.

Electrical performance and environmental performance are also outstanding. The maximum withstand voltage of this series of connectors can reach 2300V in the sea level environment, and it can still maintain stable withstand voltage performance in the 21000-meter high-altitude environment. The minimum contact resistance of the contact parts is ≤5.0mΩ, and the maximum rated current can reach 23A, ensuring efficient transmission of power and signals; the minimum electromagnetic interference shielding attenuation in the 100MHz-1GHz frequency band is 85dB, which can effectively resist external electromagnetic interference and avoid signal disorder of the rocket control system. The temperature adaptation range covers -65℃ to +200℃, which can not only withstand the high-temperature baking during rocket launch but also resist the extreme cold environment at high altitudes, fully adapting to the full-process environmental changes of the rocket from the ground to high altitudes.

In practical applications, Ankeno GJB599 Series hermetic electrical connectors are widely used in the core electrical systems of rocket bodies and launch devices, covering key parts such as control systems, propulsion systems, and measurement systems. They assume important responsibilities of command transmission, data feedback, and power supply, just like the “nerve endings” of the rocket, ensuring the coordinated linkage and precise operation of various systems. Compared with traditional connectors, this series of products effectively reduces the risk of connection failures during rocket launch by virtue of the advantages of high reliability, high airtightness, and strong environmental adaptability, providing a solid guarantee for the smooth launch and stable flight of the rocket.

As a deep cultivator in the field of high-end precision connectors, Ankeno always takes “customization, high reliability, and high precision” as the core, and continuously optimizes the performance of GJB599 Series hermetic electrical connectors. It not only meets the strict needs of the rocket field but also is widely used in complex environment scenarios such as tanks, armored vehicles, and radar shelters. In the future, Ankeno will continue to deepen its efforts in the aerospace field, break through core barriers through technological innovation, provide higher-quality connection solutions for the high-quality development of China’s aerospace industry, support “big dreams” with “small components”, and help more rockets chase dreams in the sky.