As electronic devices continue to evolve towards thinness and high-speed, the importance of micro high-speed interconnect technology is increasing. The I-PEX CABLINE-SS series, with its slim structure and stable high-speed transmission capability, has become the mainstream high-speed cable connection solution for devices such as tablet computers, laptops, camera modules, and others. Among them, the 20373-R35T-06 connector shell is a typical micro coaxial (ultra-thin coaxial) connector, which has significant advantages in terms of high-speed signal integrity, assembly size, and connection reliability.

Main features of I-PEX 20373-R35T-06
I-PEX 20373-R35T-06 features an ultra-narrow thickness design, with an overall width of about 3.0 mm and the highest insertion height of only 1.85 mm, with some data indicating it can be as low as 1.65 mm, making it very suitable for ultra-thin structures in mobile devices. Its unique W-point dual-point contact structure maintains more stable contact performance under insertion and vibration conditions, and effectively reduces contact resistance. The CABLINE-SS series single-channel speed can reach 16 Gbps, suitable for high-speed signal chains such as eDP, HDMI2.0, and USB3.1. At the same time, the 20373-R35T-06 has the environmental protection compliant advantage of being halogen-free and free of PFAS, which is more in line with current green manufacturing requirements.

The comparison of the anti-interference capability between micro coaxial cable and twisted pair wire
1. Shielding and anti-interference performance
The micro coaxial cable consists of a central conductor, insulation layer, high coverage metal shielding layer, and outer sheath, and has excellent anti- electromagnetic interference ability, which can maintain signal stability under extremely thin wire diameters. While twisted pair cables mainly rely on differential signals and twisted structure to reduce interference, their shielding capability in high-frequency environments is usually not as good as that of coaxial structures.
Signal integrity and bandwidth support
Micro coaxial cables can achieve extremely low attenuation and high bandwidth transmission, suitable for high-resolution displays and high-speed interfaces. In comparison, twisted pair cables may experience increased attenuation and potential crosstalk at extremely high frequencies.
3. Structural dimensions and flexibility
Micro coaxial cable bundles have a smaller diameter and more flexible wiring, which can be matched with slender wire diameters of AWG#40~34 for equipment with limited space. In contrast, twisted pair cables have a larger size and higher wiring space requirements.
4. Connection reliability
I-PEX's W-point contact structure is more stable in high-vibration and miniaturized applications, while the RJ45 and other connection methods commonly used with twisted pair wires are not the best choice in miniature high-frequency applications.

Section 3: Analysis of Application Scenarios for 20373-R35T-06
I-PEX CABLINE-SS series is widely used in compact devices such as laptops, tablets, small camera module, ultra-thin display panels, and so on, compatible with high-speed display interfaces such as eDP, MIPI, LVDS. In these scenarios with very high requirements for bandwidth, anti-interference, flexible wiring, and thickness control, the micro coaxial solution can achieve higher signal integrity and better mechanical adaptability, making it the mainstream interconnection method for high-performance slim devices.

In high-speed, high-frequency, and space-limited electronic device design, the micro coaxial cable (paired with I-PEX 20373-R35T-06) has a significant advantage in terms of anti-interference, signal integrity, connection reliability, and overall assembly space. Twisted pair cables are suitable for cost-sensitive or low-frequency, long-distance scenarios, but their performance is not as good as that of micro-coaxial structures in modern device applications that pursue slimming down and high-speed transmission.
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[Suzhou Huichengyuan Electronic Technology], long-term focused on the design and customization of high-speed cable harnesses and ultra-fine coaxial cables, committed to providing stable and reliable high-speed interconnect solutions. If you have related needs or want to learn more, please contact Manager Zhang:
18913228573 (WeChat same number)。