High-speed Micro Coaxial Cable Assembly Solution: I-PEX 20346-025T-32R Technical Analysis

In thin and light electronic devices, miniature coaxial cables have become the main method of high-speed signal transmission. The I-PEX 20346-025T-32R belongs to the CABLINE V series, which is compatible with extremely thin AWG #40~#46 coaxial cables, providing a reliable high-speed interconnection solution for smart terminals, laptops, VR/AR, vehicle electronics, and other devices.

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Main Features

This model adopts a 0.4 mm pitch, approximately 1.15 mm ultra-thin structure, supporting high-speed protocols such as USB 3.1, eDP, MIPI, and V-By-One, meeting 50 Ω impedance requirements, and is suitable for compact high-speed applications. The product complies with environmental protection standards such as RoHS, REACH, halogen-free, and PFAS-Free, and can meet regulatory compliance requirements.

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Part 2: Harness Compatibility and Design Recommendations

To achieve optimal performance, choose a coaxial cable with AWG #40 or finer and maintain a 50 Ω impedance consistency. The PCB layout should reserve space for horizontal insertion and pay attention to height restrictions. If the application requires high EMI performance, consider adding a shielding layer to the cable bundle or selecting the CABLINE-VS series with shielding and latches. Avoid excessive bending when routing and follow the minimum bending radius specifications for miniature coaxial cables.

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Three, assembly and testing suggestions

After assembly, it is recommended to perform signal integrity tests such as eye diagram, jitter, and bit error rate, as well as insertion and extraction life and environmental temperature and humidity tests to ensure that high-speed performance and long-term reliability meet the actual application requirements.

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I-PEX 20346-025T-32R provides a reliable high-speed interconnection solution for thin and light devices with its ultra-thin structure, high-speed support, and extreme thin wire compatibility. Through reasonable material selection, layout optimization, and necessary testing verification, it can ensure the stable operation of high-speed links, providing a solid guarantee for high-bandwidth applications.

I amSuzhou Huichengyuan Electronic TechnologyLong-term focus on the design and customization of high-speed signal cables and ultra-fine coaxial cables, providing complete and high-reliability high-speed interconnect solutions. If there is a need or if you wish to discuss specific projects, please feel free to contact us.Manager Yin: 18913280527 (same number for WeChat)。