In today's rapidly developing era of high-speed signal transmission and miniaturized electronic devices, ultra-thin coaxial cables (Micro Coaxial Cable) have become an indispensable key component in precision electronic connections. However, do you know that such cables cannot be焊接 arbitrarily, especially when using high-precision connectors like I-PEX 20473-030T-10. Improper handling may directly affect the performance of the entire machine, even leading to the scrapping of an entire batch of products!
What is a micro coaxial cable (Micro Coaxial Cable)?
Micro coaxial cable is a smaller and softer high-frequency transmission line material than traditional coaxial cables, with main features including:
Excellent signal integrity: Ensuring the stability of high-speed data transmission.
Suitable for high-resolution applications: capable of supporting the fast transmission of video, data, and other high-speed signals.
Widely used in microelectronic products: such as laptops, camera modules, automotive systems, and medical equipment, etc.
Why can't welding extremely fine coaxial cables be "done随便"?
Many engineers or assemblers tend to treat ultra-thin coaxial cables as ordinary wires when they first encounter them, which often results in welding failures, abnormal signals, and even damage to the entire batch of connectors or motherboards. The main reasons include:
Extremely thin wire diameter, low tolerance rate
Micro coaxial cable core diameter is usually in the range of 0.2mm-0.5mm (36AWG~42AWG), which is difficult to distinguish with the naked eye. Slight force or excessive temperature can easily cause the core to break or poorly soldered joints. During the soldering process, high requirements are placed on the iron temperature, soldering time, and pressure, making it difficult for manual operations to ensure consistency.
Multi-layer structure, prone to short circuit
The extremely thin coaxial cable is composed of a core conductor, an insulating layer, a woven shielding layer, and an outer sheath, wrapped layer by layer. Over-peeling or improper operation is prone to short circuits, therefore, the剥皮 length needs to be strictly controlled before welding, and a magnifying glass should be used to confirm the peeling effect one by one.
Welding solder volume and temperature control requirements are strict.
Excessive solder: Easy to cause multiple PIN bridges, short circuits, or impedance abnormalities.
Soldering insufficient: Resulting in virtual soldering or poor contact, causing signal interruption.
• Low temperature: Insufficient tin on solder joints, increased probability of cold solder joints.
High frequency signal sensitive, solder joint quality affects performance
Micro coaxial cable is commonly used for high-speed signal transmission at 10Gbps/20Gbps. If there are issues such as cold solder joints, uneven solder quantity, or improper shielding, it may lead to signal reflection, impedance mismatch, increased EMI interference, and data transmission errors.
III. I-PEX 20473-030T-10 Connector Introduction
Basic positioning
• Belongs to the CABLINE®‑CBL series of miniature coaxial connectors.
Horizontal plug housing structure, for use with the corresponding socket.
Supports 30 Pin mini coaxial cable connection, compatible with multiple extremely thin coaxial cables (AWG #40/#42/#44/#46).
Performance characteristics
High-frequency and high-speed transmission: Supports interfaces such as eDP, V-by-One, and USB 3.1 Gen1, with data rates up to 5 Gbps per line, and improved to 20 Gbps per line.
Efficient shielding and grounding: housing shielding + multi-point grounding structure (ground bar) to ensure excellent electromagnetic compatibility (EMC) performance.
Welding ultra-fine coaxial cables may seem simple, but it actually requires a high level of technology. It has strict requirements for equipment, process specifications, and operating environment. It cannot be焊接 like ordinary wires. Only with professional equipment, mature technology, and experienced technicians can we ensure stable connections, complete signals, and reliable products.
We have been focusing on the design and customization of high-speed signal cable harnesses and ultra-fine coaxial cable harnesses for a long time, committed to providing stable and reliable high-speed interconnect solutions. If you have any related needs or would like to learn more, please contact: Manager Yin.
18913280527 (WeChat same number)。
