With the continuous improvement of electronic devices in terms of signal transmission accuracy and stability, ultra-thin coaxial cables (micro coaxial cable) have become the mainstream transmission materials in high-end communication, consumer electronics, and medical equipment fields due to their advantages such as small size, strong anti-interference, and low signal loss. This article will start from the aspects of structural principle, connector application, and performance advantages, combined with the I-PEX 20454-240T high-performance connector, to help you deeply understand the technical value of micro coaxial cable.
Section 1: The Internal Structure of Extra-Fine Coaxial Lines
A very fine coaxial cable is a precision transmission line that combines miniaturization with high-frequency performance. Its typical structure is composed of the following several parts:
Central conductor:
Utilize high-purity copper or copper alloys to ensure efficient signal transmission, low impedance, and low loss.
Insulation layer:
PTFE or high-performance polymer materials are often used, which have excellent electrical insulation properties and stable dielectric constants, reducing signal distortion.
3. Shielding layer:
Woven from ultra-fine copper wires or made of metal foil, it can effectively block external electromagnetic interference (EMI) and enhance signal integrity.
Outer sheath:
Utilize flexible and wear-resistant materials to enhance the mechanical strength and durability of cables.
This multi-layered structural design enables extremely fine coaxial cables to achieve high-speed, low-noise signal transmission even in the smallest of spaces, which is a crucial foundation for the high-speed interconnection of modern precision electronic devices.
Introduction to I-PEX 20454-240T Connector
I-PEX 20454-240T belongs to the CABLINE-VS series plug housing (male housing), designed for high-density, high-speed signal transmission scenarios. Its precise structure is highly matched with micro coaxial cable, and is widely used in laptops, monitors, smartphones, in-car electronics, and VR/AR devices, etc.
Pitch 0.5 mm, high-density miniaturized design, suitable for compact space layout.
Adapts to 40pin (20454-240T represents 40pin), supports multi-channel signal transmission.
3. The maximum transmission rate per channel reaches 20 Gbps, compatible with USB4 / Thunderbolt 4 and other standards.
4. Adopting the water drop-shaped multi-point contact (W-point contact) + mechanical locking strip structure to ensure stable interlocking and prevent false connection.
Low-height design (≤1.1 mm), supporting PCB horizontal insertion, meeting the requirements of thin and light devices.
6, Compatible with AWG #40-38 miniature coaxial cable, with excellent signal integrity and durability.
In short, the I-PEX 20454-240T is a high-performance connector that balances high speed, stability, and miniaturization, providing a reliable interface platform for extremely thin coaxial cables.
Extremely fine coaxial cables, with their high-density shielding structure and excellent electrical performance, achieve high-speed and low-loss signal transmission. The I-PEX 20454-240T connector, as an ideal matching component, not only enhances the overall transmission bandwidth of the system but also ensures the stability of the interface under frequent plugging and unplugging and high-frequency operating conditions. The high-density high-speed interconnection solution formed by the combination of the two has been widely used in high-end scenarios such as notebook mainboards, in-car imaging systems, medical imaging equipment, and AR/VR modules, providing efficient and reliable signal transmission paths for modern electronic systems.
I amSuzhou Huichengyuan Electronic Technology Co., Ltd., long-term focused on the design and customization of high-speed signal cables and ultra-fine coaxial cables, committed to providing customers with stable and reliable high-speed interconnect solutions. If you have related needs or want to learn more, please contact:Manager Yin 18913280527 (WeChat number the same)。
