Coxial Hybrid Push Pull Connector Coxial Hybrid Push Pull Connector
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  • What is Coaxial?
    Coaxial refers to a coaxial structural design, whose core is a coaxial transmission structure composed of an inner conductor, insulating medium, outer conductor and sheath. The outer conductor can effectively shield external electromagnetic interference and prevent internal signal radiation outward. It maximizes signal integrity during high-frequency and high-speed signal transmission, being the optimal structural form for high-frequency signal transmission and the core design feature that distinguishes it from ordinary pins.
  • Core Advantages of Coaxial Pins vs Ordinary Pins
    Compared with ordinary pins, the core advantages of coaxial pins focus on signal transmission and anti-interference capabilities, while also taking into account integration and stability.
    ① It has an exclusive shielding structure that can effectively isolate electromagnetic interference, greatly reducing losses and crosstalk in high-frequency signal transmission and ensuring the integrity and accuracy of high-speed/high-frequency signal transmission.
    ② It features a higher transmission bandwidth to meet the high-frequency signal transmission requirements of modern electronic equipment.
    ③ Its compact structure allows integrated hybrid assembly with power and low-frequency signal pins, realizing partitioned and independent transmission of multiple signal types in a limited space, improving the integration density of connectors and conforming to the development trend of equipment miniaturization and high density.
    ④ The more stable mechanical structure ensures more reliable signal contact during plugging, unplugging and use, making it suitable for high-frequency application scenarios in industrial, medical and other fields.
  • Core Model — TGG.2B.810 1-Coaxial + 10-Signal Hybrid Connector
    TGG.2B.810 is the core model of the customized coaxial hybrid connector solution, adopting an integrated design of 1 coaxial high-frequency pin and 10 low-frequency signal pins. It is fully compatible with LEMO interface standards and can be directly matched with existing LEMO interface equipment without additional modification, with extremely strong adaptability. Relying on the shielding advantage of coaxial pins, the product achieves partitioned and independent transmission of high and low-frequency signals in a limited space with excellent signal isolation, completely avoiding crosstalk between different signal types and ensuring transmission stability.
    This connector is precisely adapted to the high-precision equipment requirements in medical, semiconductor, industrial control and other fields. It can flexibly customize parameters such as 50Ω/75Ω impedance matching, IP protection grade, structural dimensions and keyway design according to customers' actual application scenarios. It not only meets the installation requirements of equipment miniaturization and high integration, but also complies with the operation standards of various harsh environments including vehicle-mounted, outdoor, industrial sites and medical operating rooms, providing a highly reliable and customized signal transmission solution for high-precision equipment. If you have more demands for coaxial solutions, please do not hesitate to contact us!

Commonly Used Connector

PKG.0P.307.PKLG
PKG.0P.307.PKLG
QM PKG.0P.307.PKLG is a miniature 0P-size push-pull self-latching circular connector, featuring ultra-small size, lightweight design and high reliability. The insulator is made of PEEK material, featuring extremely high insulation resistance and low risk of electric leakage. It is resistant to high voltage and resistant to dielectric breakdown and low loss and high stability under high-frequency signals. PKG.0P.307.PKLG is widely used in medical equipment, portable instruments, sensors, wearable devices, small industrial control products and test & measurement applications.
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PKG.1P.304.NLLN
PKG.1P.304.NLLN
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PKB.2P.312.BLLW
PKB.2P.312.BLLW
QM PKB.2P.312.BLLW is a 2P-size circular female push-pull self-locking connector with 12 contacts. Featuring a white housing, it is well-suited and aesthetically pleasing for medical, semiconductor and other industries, with an ergonomic mating feel. The PSU housing withstands 134°C high-temperature sterilization and corrosion.
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PKG.4P.378.PLLG
PKG.4P.378.PLNG
QM.PKG.4P.378.PLNG is a plastic push-pull connector with 78 contacts for medical, industrial and security applications. It features a compact multi-pin design ideal for electrophysiology catheters and precision medical devices, supporting stable multi-channel signal transmission. With RoHS-compliant high-performance plastic housing, it provides great insulation and reliability for clean medical and industrial environments.
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MGA.00T.304.CLN
MGG.4B.340.CLL
MGG.4B.340.CLL 40-pin connector features a classic push-pull self-locking design with 40 high-density signal contacts. It has a rated current of 2–3A per contact, supports wide temperature operation, and provides excellent EMC shielding performance. With standard keying for anti-mismating, it supports solder cup, PCB, and other termination methods. MGG.4B.340.CLL offers long mechanical life, strong environmental resistance, and high vibration resistance, making it widely used in multi-channel signal connections for medical, industrial, and test equipment.
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MGG.2KP.308.UWLL
MGG.2KP.308.UWLL
MGG.2KP.308.UWLL is a high-performance IP68 fixed socket connector of MGG-2KP series, engineered for medical and semiconductor fields with 2-32 core configurable design and 308 pin configuration. Featuring 360° EMC shielding, bio-compatible high-grade materials and >200 times steam sterilization capacity, it has ultra-high environmental adaptability and mechanical durability. With IP68 waterproof performance in mated state and excellent anti-vibration & shock resistance, it ensures stable signal and power transmission in harsh medical and industrial working conditions. All materials comply with ROHS requirements, matching LEMO overmolded connector performance standards.
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R&D of Coaxial Hybrid Connectors

The R&D of coaxial hybrid connectors is a comprehensive technical endeavor integrating signal integrity, electromagnetic compatibility, structural mechanics, material science, and simulation testing. It serves as the core support for ensuring the high-precision, high-stability, and high-reliability operation of connectors. A professional R&D system determines the upper performance limits of connectors in high-frequency transmission, anti-interference capability, mechanical durability, and environmental adaptability, and also represents an important part of the enterprise’s core competitiveness.
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  • Signal integrity technology is the core foundation for the development of coaxial hybrid connectors.
    The R&D team employed precise impedance control, differential transmission design, and end-connection matching optimization techniques to ensure that the high-frequency signals transmitted without distortion, low loss, and low reflection. They effectively suppressed signal crosstalk and echo loss, meeting the transmission requirements from conventional radio frequency to millimeter wave frequency bands. Considering the characteristics of the mixed structure, during the R&D process, the focus was on solving the interference problems between coaxial signals and power supplies, as well as low-frequency signals. Through independent channel design and isolation structures, they ensured the synchronous and stable transmission of multiple types of signals.
  • Electromagnetic shielding and anti-interference technologies are the key guarantees for the reliable operation of coaxial hybrid-mounted connectors.
    The professional research and development adopts an integrated design featuring multi-layer shielding, cavity isolation, and independent grounding, to establish an all-round electromagnetic protection system. This effectively blocks external electromagnetic interference from invading and internal signals from radiating outward, thereby enhancing the working stability of the connector in complex electromagnetic environments. This technology can meet high anti-interference standards such as automotive, military, and industrial levels, ensuring that the equipment can continue to work reliably in strong electromagnetic and strong vibration environments.
  • Structural mechanics and reliability research and development technologies focus on the mechanical properties and service life of connectors.

    During the research and development process, through lightweight and high-strength structural design, a balance was achieved between the miniaturization and high stability of the connector; the plug-in structure and guiding design were optimized to enhance the compatibility of blind insertion and the lifespan of the plug-in; through stress elimination and sealing structure design, waterproof, dustproof, vibration-resistant, and impact-resistant properties were realized, ensuring that the connector does not loosen or fail during long-term use and in extreme environments.

  • Materials and coating technology are crucial supports for enhancing the performance of connectors.

    The R&D team selected high-conductivity alloys, high-performance insulating materials, and heat-resistant and corrosion-resistant shell materials based on different application scenarios. They also combined with professional coating processes such as gold plating and tin plating to reduce contact resistance, enhance oxidation resistance and wear resistance, and meet special requirements such as environmental protection without halogens and biological compatibility.

About QM Connectors

QM Connectors is a leading direct manufacturer of high‑end interconnection solutions with over 15 years of expertise in R&D, production and customization.

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