I-PEX 20634-210T-02: EMI solution for high-speed micro coax system

As electronic devices continue to evolve towards high-speed and miniaturization, micro coaxial cable, with its low loss, high bandwidth, and high flexibility, is widely used in fields such as smart wearables, camera modules, industrial cameras, and notebook display modules. However, high-speed transmission inevitably brings more severe electromagnetic interference (EMI) challenges, affecting system stability. To address this issue, I-PEX's 20634-210T-02 connector, with its structure specifically designed for micro coax, performs outstandingly in EMI suppression and is a representative solution for solving high-speed cable interference.

I-PEX 20634-210T-02: Precise Connection Solution for High-Speed Micro Coax

As a high-precision connector brand in Japan, I-PEX is widely recognized in the fields of high-speed and high-density connections. The 20634-210T-02 belongs to the CABLINE®-CA series, which is specifically optimized for micro coaxial cables. It features a high-density design with a 0.4 mm micro pitch, a full metal shell for excellent shielding performance, and a signal and ground staggered (GSSG) arrangement structure that effectively enhances anti-crosstalk capability. It supports bandwidths up to 32 Gbps (NRZ) or 64 Gbps (PAM4), meeting the transmission requirements of the next-generation high-speed modules, while also complying with environmental regulations and being suitable for various small and high-performance devices.

Why is it easy for micro coax to appear EMI in high-speed transmission?

Due to the compact structure, tiny conductor spacing, and fine coaxial cable束, it is prone to issues such as crosstalk, external electromagnetic field coupling, and ground loop noise when entering GHz-level transmission frequencies. The energy of high-speed signals is concentrated, and any minor interference may cause data distortion, increased error rate, and even link interruption, which is more obvious in smart terminals, small devices, and high-density systems. Therefore, EMI control has become a key challenge in the application of micro coax.

Three, EMI suppression design of 20634-210T-02: comprehensive strengthening from structure to grounding

To ensure the stability of high-speed transmission, this connector employs multiple structural reinforcement measures:
The full metal shielding shell provides 360° coverage and can form a complete shielding path with the grounding system, effectively reducing electromagnetic radiation from both inside and outside.
The Signal Ground Signal Ground (GSSG) layout allows each high-speed signal to have a closer return path, fundamentally reducing crosstalk and reflections.
Multiple grounding and stable locking structures ensure continuous shielding and prevent unstable grounding or poor contact under high-frequency conditions.
Optimize the impedance and common-mode interference for high-speed signals such as NRZ and PAM4, ensuring signal integrity and low EMI performance under conditions of tens of Gbps.

Under the background of ever-increasing demand for high-speed transmission and continuous compression of device space, EMI has become a core challenge in micro coax systems. The I-PEX 20634-210T-02, through its compact structure, high-density layout, multi-point grounding, and full metal shielding design, has successfully provided efficient interference suppression capabilities for extremely thin coaxial cables, bringing higher transmission reliability to intelligent terminals and industrial equipment. It is not only a connector but also a key guarantee for the stability of high-speed links.

I amSuzhou Huichengyuan Electronic Technology Co., Ltd.Long-term focus on the design and customization of high-speed cable harnesses and ultra-fine coaxial cable harnesses, committed to providing stable and reliable high-speed interconnection solutions. If you have any related needs or want to learn more, please contact Manager Yin:18913280527 (WeChat number)。