Categorization：Harness Component
In notebook computers, display devices, industrial cameras, AI vision equipment, and high-speed data terminals, extremely thin coaxial cables not only undertake high-speed signal transmission but also directly affect the internal space layout of the equipment. Therefore, when selecting, one cannot only look at the "50Pin" parameter. Taking I-PEX 82444-100B-02-D as an example, this product belongs to the CABLINE®-SS series 50Pin ultra-thin coaxial cable, with the matching cable end connector model being 20373-R50T-06. The connector is 50PIN, 0.4MM Pitch, using Micro-Coaxial 40AWG cable, and the official specifications correspond to a cable length of 200mm, with Pin Assignment of 1-N. CABLINE®-SS itself uses a 0.4mm Contact Pitch, Vertical Right Angle structure, with Mated Height of 1.65±0.2mm, supporting various specifications such as 10, 14, 20, 30, 32, 35, 40, and 50Pin. For engineers, 50Pin determines the number of signal channels, while 0.4mm Pitch directly relates to PCB space occupation and connector layout, both of which must be consistent with the original equipment design; for purchasers, the Pin number, Pitch, and connector model should be considered as the basic identification conditions when making inquiries, to avoid price comparisons of products with different specifications.
After confirming the 50Pin and 0.4mm Pitch, it is still necessary to further confirm the wire diameter, length, and wire sequence of the extremely thin coaxial cable, otherwise, even if the connector appearance and Pin number are consistent, it may not be able to be directly replaced. The official sample materials of I-PEX 82444-100B-02-D clearly correspond to Micro-Coaxial 40AWG, L=200mm, 1-N; the same series of 50Pin includes 82891-100B-02-D (100mm, 1-N) and 82892-100B-02-D (300mm, 1-N), and there are also 83028, 83029, 83030 and other 1-1 wire sequence products. This means that engineers should focus on checking the complete combination of "40AWG+200mm+1-N" when selecting, and cannot simply view products with different lengths or 1-N, 1-1 as the same type of cable. Especially in high-speed signal applications, wire structure, impedance, and Pin Assignment will affect signal integrity. The CABLINE®-SS high-speed test conditions shown by I-PEX are 40Pin, AWG#40, 45Ω, 100mm, GSSGSSG, which belong to specific test conditions and cannot be directly understood as all 50Pin, 200mm cables being unified as 45Ω. Therefore, actual projects still need to be verified according to the system SI requirements.
The value of the 50Pin solution is not just to increase signal channels, but more importantly, to achieve multi-channel high-speed connections within limited device space. CABLINE®-SS is officially positioned for 16Gbps/Lane high-speed applications, and it adopts a 0.4mm Pitch, vertical right-angle structure, and horizontal outlet design. The official also demonstrated the application method of the cable assembly through a small pivot axis; its W-Point double-contact design is used to enhance the contact reliability after the male and female sockets are mated. Therefore, for engineers, if there are screen pivots, narrow cavities, high-density PCBs, or high-speed differential signal transmission requirements inside the product, it is necessary to consider the connector height, outlet direction, cable bending space, and signal integrity at the same time when selecting, rather than just confirming the Pin number. For procurement personnel, it is necessary to confirm whether the supplier truly has the mass production capacity for 50Pin ultra-fine coaxial cable assemblies, because the higher the Pin number and the smaller the Pitch, the higher the requirements for core wire processing, terminal processing, arrangement, welding/soldering, conductivity testing, and product consistency. The actual manufacturing capacity of the supplier will directly affect the quality of mass delivery.
For projects that require domestic substitution, second supplier introduction, or cost optimization, it is recommended to confirm items one by one in the order of "Connector - Pin Number - Pitch - Wires - Length - Wire Sequence - Test Requirements." For I-PEX 82444-100B-02-D, the core specifications for alternative development can be checked using 20373-R50T-06, 50PIN, 0.4MM Pitch, Micro-Coaxial 40AWG, 200mm, and 1-N; if the equipment end has already completed the structural design according to the CABLINE®-SS 50Pin interface, then it is also necessary to further confirm the matching connector system. The I-PEX official 50Pin recommended connectors include 20380-R50T-16 Plug Cable Assembly, 20373-R50T-06 Plug Housing, 2182-050-04 Plug Metal Cover, and 20374-R50E-31 Receptacle. For actual projects, it is recommended to first carry out sample size, mating match, wire sequence, conduction, and high-speed signal testing, and then proceed to small batch verification and bulk procurement. Our company can provide: I-PEX 82444-100B-02-D compatible alternative cable assembly solutions, which can develop ultra-fine coaxial cable assemblies according to customer equipment's connector specifications, 50PIN/0.4MM Pitch, 40AWG Micro-Coaxial Cable, 200mm length, and 1-N wire sequence requirements, providing cable assembly manufacturing support for engineering verification, domestic substitution, and bulk procurement.
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