Categorization:Harness Component
Solution for 30Pin ultra-thin coaxial cable束 to meet the needs of high-speed electronic device connections
With the continuous development of laptops, tablets, high-resolution display devices, intelligent terminals, and high-speed data devices towards thinness and high integration, the internal space of devices becomes increasingly limited. At the same time, there is a higher requirement for high-speed signal transmission, EMI shielding, and connection reliability. Traditional FPC and ordinary ribbon cables are no longer able to meet the needs of some high-speed differential signal transmission, and the use of extremely fine coaxial cable harnesses (Micro-Coaxial Cable Harness) has become the preferred solution for an increasing number of engineering designers.
This article introduces a high-speed ultra-thin coaxial cable assembly scheme corresponding to the I-PEX CABLINE®-CA II series 30Pin cable assembly product 81461-100B-02-D. This product adopts a 30Pin structure, matches 40AWG ultra-thin coaxial cable materials, and has a cable length of 200MM. It is suitable for high-density, small space, and high-speed transmission application scenarios. According to the official information of I-PEX, the CABLINE®-CA II series connectors use a 0.4mm pitch design, horizontal insertion and extraction structure, and are equipped with ZenShield® full shielding technology and mechanical lock structure, which can support high-speed signal transmission applications.
As a professional manufacturer of ultra-fine coaxial cable assemblies, we can provide a compatible and alternative cable assembly solution for I-PEX 81461-100B-02-D. According to the design requirements of customer products, we can achieve domestic replacement of ultra-fine coaxial cable assemblies with the same specifications and performance levels, helping customers reduce supply chain risks and improve product delivery stability.

II-PEX 81461-100B-02-D ultra-fine coaxial cable bundle product features and engineering application advantages
I-PEX 81461-100B-02-D is a 30Pin Micro-Coaxial Harness cable assembly component, whose core composition includes extremely thin coaxial wire materials and wire end connector components. The wire end connector uses CABLINE-CA II Plug Housing 20680-030T-01, which belongs to the CABLINE®-CA II series 30Pin Plug connector components and can be used to achieve a stable connection between the extremely thin coaxial cable assembly and the high-speed signal interface at the device end.
The scheme adopts 40AWG Micro-Coaxial ultra-fine coaxial cable material, which has better high-speed signal integrity and anti-interference capability compared with traditional multi-core cable harnesses. The ultra-fine coaxial structure, with an independent shielding layer design, can effectively reduce crosstalk and electromagnetic interference issues during high-speed signal transmission, making it more suitable for internal connections in display modules, high-speed cameras, VR/AR devices, and high-performance electronic equipment.
From the perspective of engineering applications, the 30Pin specification can meet the needs of a large number of high-speed displays and data transmission, while the 200MM length can cover the connection distances between different modules within the device. The CABLINE®-CA II series supports various specifications including 20Pin, 30Pin, 40Pin, and 50Pin, and supports AWG36~AWG44 Micro-Coaxial wire material solutions, among which the AWG40 specification has good size, performance, and balance.

How to select ultra-fine coaxial cable assemblies? Engineer and Purchasing Personnel Selection Guide
For equipment development engineers and purchasing personnel, selecting a very fine coaxial cable assembly not only requires attention to the number of pins and length, but also needs to comprehensively consider connector matching, cable specifications, signal rate, installation space, and supply stability.
Firstly, it is necessary to confirm whether the connector platform matches. Extremely thin coaxial cable assemblies are typically composed of line-end Plug connectors, board-end Receptacle connectors, and Micro-Coaxial Cable. When selecting, it is essential to ensure that the connector model, pin count, and structural dimensions are consistent. For example, this scheme uses the CABLINE®-CA II 30Pin platform, corresponding to the connector model at the cable end as 20680-030T-01, which matches the 30Pin cable assembly structure.
Next, it is necessary to confirm the AWG specification of the wire material. The larger the AWG value, the finer the wire diameter, which has an advantage in space utilization; however, in high-speed signal applications, it is also necessary to consider impedance control, electrical performance, and mechanical reliability. This product uses extremely fine 40AWG coaxial wire material, which can achieve a good balance between miniaturized design and high-speed transmission performance.
Again, the cable length needs to be determined based on the internal space of the device. The length of the product in this article is 200MM. If the device structure changes, different length specifications can be adjusted according to the actual layout requirements. Standardized selection usually requires comprehensive consideration:
Pin count → Connector model → AWG specification → Cable length → Signal application requirements → Shielding performance
Through matching these parameters, it can effectively avoid problems such as incompatibility in later connection, signal attenuation, or difficulties in assembly.

Four, selection and compatibility and alternative solution references and suggestions
For customers using the I-PEX CABLINE®-CA II series connection solutions, if they need to find compatible alternative solutions due to supply cycle, procurement cost, or supply chain management requirements, they can match from four aspects: connector platform, pin count, wire specification, and cable size.
For the original scheme I-PEX 81461-100B-02-D, the recommended alternative design directions are as follows:
Adopt the same 30Pin Micro-Coaxial structure;
Maintain the 40AWG ultra-fine coaxial cable specification.
Maintain a 200MM cable length;
Match wire harness connector 20680-030T-01
Maintain high-speed signal transmission and shielding performance requirements.
Our company can provide a compatible and alternative harness solution for I-PEX 81461-100B-02-D. We can design and convert ultra-fine coaxial harnesses, make samples, conduct small batch verification, and carry out mass production based on the original specification book, samples, or engineering drawings provided by customers. At the same time, we support customized development of Micro-Coaxial Harnesses with different pin counts, lengths, and application requirements. For customers who need domestic substitution, second-source introduction (Second Source), and supply chain optimization, our professional manufacturing capabilities can achieve performance matching, structural compatibility, and stable supply.

Extremely thin coaxial cable bundles have become an important solution for internal connections in high-speed, miniaturized electronic devices. The I-PEX CABLINE®-CA II series, with its 0.4mm pitch, high-speed transmission capabilities, ZenShield® full shielding structure, and mechanical locking design, has wide application value in high-density electronic device connections.
Our company has the research and development, manufacturing, and alternative development capabilities for extremely fine coaxial cable束 products such as I-PEX 81461-100B-02-D (30Pin Micro-Coaxial 40AWG L=200MM). We can provide a one-stop cable solution that includes connector matching, 40AWG extremely fine coaxial cable processing, precise assembly, and performance verification.
Whether it is the introduction of new product design or the domestic substitution of existing imported wire harnesses, we can provide customers with extremely fine coaxial cable products with high reliability and consistency, helping customers enhance product competitiveness and achieve optimized high-speed connection solutions.
I am【7A Electronic Network】If you need to select ultra-fine coaxial cable束, product procurement, research and development, or alternative solutions, please feel free to contact Manager Yin at any time.18013280527 (WeChat number).