With the rapid development of high-speed transmission and miniaturized devices, Micro Coaxial Cable, with its excellent signal integrity and flexible structure, has become the preferred solution for internal connections in devices such as laptops, vehicle-mounted cameras, medical endoscopes, and drones.
This article will comprehensively introduce the structural characteristics and application fields of ultra-fine coaxial cable束, and focus on analyzing an I-PEX 20454-220T high-density connector widely used in high-end electronic devices, providing reference for design and selection.
What is a micro coaxial cable (Micro Coaxial Cable)?
A very thin coaxial cable is a signal transmission cable with an extremely small diameter and coaxial structure. It is usually composed of an inner conductor, an insulating layer, a metal shielding layer, and an outer sheath, and has excellent high-frequency characteristics, strong anti-interference ability, and excellent bending performance. The common specifications range from 0.3mm to 1.2mm, and are widely used in high-resolution camera modules, tablets, laptops, medical equipment, and other occasions. Its compact structural design not only enables high-speed signal transmission in limited space but also effectively suppresses electromagnetic interference (EMI), maintaining the integrity of the signal and low loss.
Typical structure of ultra-fine coaxial beam
The conventional Micro Coax cable is generally composed of four layers:
Conductor: Copper or tin-plated copper, used for transmitting high-speed signals.
Insulation layer: Using low dielectric constant materials such as FEP or PFA to reduce signal delay and loss.
Metal shielding layer: dual shielding structure with aluminum foil and woven mesh, enhancing anti-interference capability.
4. Outer sheath: TPU or other flexible materials, ensuring mechanical strength and bending properties.
This multi-layer structure can provide stable impedance control in high-speed signal transmission, while taking into account bending performance and anti-interference effects, making it an ideal choice for internal interconnection in high-performance electronic devices.
Section 3: I-PEX 20454-220T Connector and Applications
I-PEX 20454-220T is a high-density connector specifically designed for Micro Coaxial Cable, supporting high-speed differential signal transmission, and is widely used in devices such as notebook displays, vehicle-mounted cameras, medical endoscopes, and more.
Core parameters:
1. PIN number: 20 digits
2. Pitch: 0.4mm
Applicable Cable: Ø0.3mm / Ø0.4mm Micro Coax
Rated Current: 0.3A
Voltage Resistance: 200V AC
Operating Temperature: -40℃ ~ +85℃
Application Case:
Laptop screen cable: Ensure stable transmission of high-resolution, high refresh rate video signals.
Vehicle-mounted camera: Achieve anti-interference stable connection for high-speed signal transmission in small spaces within ADAS and surround-view systems.
Endoscopic cable solutions: providing extremely thin, flexible, and high-speed transmission cables.
I-PEX 20454-220T is the preferred connection solution for Micro Coax cable in high-end equipment due to its low impedance loss, high reliability, and compact structure.
With the development of 5G communication, intelligent driving, and ultra-high-definition imaging, the application of Micro Coaxial Cable in miniaturized, high-speed devices will continue to grow. High-performance cables and matching connectors are crucial for ensuring high-speed signal integrity and stability. The I-PEX 20454-220T, with its compact design, excellent electrical performance, and reliable mechanical structure, provides an ideal high-speed interconnection solution for high-end electronic equipment.
I amSuzhou Huichengyuan Electronic Technology, long-term focused on the design and customization of high-speed cable harnesses and extremely fine coaxial cables, committed to providing stable and reliable high-speed interconnect solutions. For more technical information or customized solutions, please contact:YinManager 18913280527 (WeChat number the same)。
