With the continuous pursuit of thinness and higher data transmission rates by electronic devices, micro coaxial cable has become an indispensable high-speed signal transmission solution for high-end laptops, high-definition cameras, drones, and medical equipment. However, during actual assembly and use, many engineers find that there are problems such as unstable signal transmission, increased interference, and even system anomalies. This article will systematically analyze the five common causes of this phenomenon and focus on introducing the technical advantages of the excellent connector in the industry—I-PEX 20847-040T-01.
The five major causes of instability in ultra-fine coaxial cable束 transmission
Connector contact is poor
Micro coaxial cable requires extremely high contact quality for connectors. If poor contact occurs due to uneven plating, PIN pin misalignment, and other factors, signal loss and interference are likely to occur, particularly when transmitting high-frequency and high-speed signals, which has a more significant impact.
Recommended plan:
I-PEX 20847-040T-01 employs high-precision PIN pins and a stable insertion/ejection structure to ensure contact reliability and meet high-frequency high-speed transmission requirements.
Cable bend radius too small
Although micro coaxial cable has good flexibility, if the bending radius is too small during installation, it is prone to damage the internal core structure, causing impedance mismatch and signal attenuation.
Suggestion:
Control the bending radius ≥ 5 mm during installation to avoid excessive compression or twist of the cable.
3. Insufficient performance masking
In complex electromagnetic environments, unreasonable shielding layer design or poor grounding treatment can lead to signal interference, increased error rate, and waveform distortion.
Solution:
Choose a micro coaxial cable with excellent shielding effect and use it in conjunction with the I-PEX 20847-040T-01 connector. Its optimized grounding and full shielding design can significantly improve EMC performance.
Improper installation technology
Soldering defects and loose connections in the process will directly affect the stability of the wiring harness system. The welding and assembly of micro coaxial cable require extremely high standards for the environment, temperature control, and operational specifications.
Suggestion:
Production and assembly should be carried out by professional manufacturers with fine welding and precise assembly capabilities to ensure the reliability of each connection point.
Selection and matching failure
Connectors and cables that do not match properly may cause mismatched interface dimensions or discontinuous impedance, resulting in transmission anomalies.
Recommended combination:
I-PEX 20847-040T-01 is specially designed for a 0.3 mm outer diameter micro coaxial cable, supporting a 40 Pin high-density arrangement, and capable of meeting 4K/8K high-definition high-speed signal transmission.
II-PEX 20847-040T-01 connector advantage analysis
Basic Information
I-PEX 20847-040T-01 is a plug housing component belonging to the CABLINE® -VS II series, using a 40-pin high-density structure.
Gold-plated contact with a 0.03 μm nickel underlayer ensures low contact resistance and excellent wear resistance.
Structure and Assembly Performance
With a horizontal insertion design with a spacing of 0.5 mm, the overall height is only about 1.2 mm, perfectly fitting the needs of thin and light devices.
Stitching, housing, and positioning tolerance controlled within ±0.3 mm, suitable for high-precision automated assembly.
3. Signal and shielding performance
With I-PEX's exclusive ZenShield® full-shielding structure and equipped with a mechanical locking mechanism, enhanced EMI protection and connection stability are achieved.
The single-channel speed supports high-speed protocols such as PCIe 5.0, USB4 Gen4, and Thunderbolt 5 (up to 32 Gbps/lane and above).
Cable Matching and Application Scenarios
Compatible with 40 AWG ultra-fine coaxial cables, it can be widely used in thin and light high-frequency application fields such as eDP, LVDS, camera modules, high-speed signal collection, laptops, drones, and VR/AR devices.
The instability of extremely thin coaxial cable bundles often originates from multiple factors such as poor contact, bending errors, or shielding defects. Only by choosing the performance-stable I-PEX 20847-040T-01 connector,配合high-quality cables and standardized assembly processes, can the stability and reliability of high-speed signal transmission truly be achieved.
We have been focusing on the design and customization of high-speed cable harnesses and ultra-fine coaxial cables for a long time, committed to providing stable and reliable high-speed interconnection solutions. If you have any related needs or would like to learn more, please contact: Manager Zhang.
18913228573 (WeChat number).
