Categorization：Harness Component
With the continuous increase in data transmission rates of laptops, tablets, AR/VR devices, display modules, and miniaturized smart terminals, internal connections can no longer be considered solely in terms of "whether they can transmit" but must also take into account signal integrity, EMI interference, wiring space, and mechanical flexibility. The advantage of extremely fine coaxial cables lies in their ability to combine "high-speed transmission" with "ultra-miniaturized wiring." The I-PEX CABLINE®-UX II adopts a 0.25mm ultra-narrow Pitch and vertical right-angle structure, with a reference transmission speed of 5Gbps/lane NRZ, and can correspond to high-speed applications such as USB 3.1 Gen1, V-By-One HS 1.4, HDMI 1.3, eDP, etc. The cable shielding and multi-point grounding structure of the connector form a continuous path from Wire Shield, Ground Bar, Plug Shell, Receptacle Shell to PCB, which helps control electromagnetic interference during the high-speed signal transmission process.
From the perspective of engineering design, a ultra-fine coaxial cable is not simply a finer version of a regular wire, but rather a control of the signal transmission path through the structure of the central conductor, insulating layer, shielding layer, and outer sheath. For high-speed digital signals, as the signal edge becomes faster, impedance continuity, crosstalk, return loss, and EMI will directly affect the system stability. Therefore, coaxial solutions with clear transmission structures and shielding paths are more likely to meet the needs of high-speed connections. At the same time, ultra-fine coaxial cables also have the advantages of good flexibility and small space occupation. According to the official information of I-PEX, the CABLINE®-UX II 40Pin scheme uses coaxial cables with an outer diameter of about 0.24mm to process the cable assembly, which can pass through an axis or small diameter pipeline with a Φ2.66mm diameter. This is particularly valuable for structures with extremely limited space, such as notebook screen axes.
This product corresponds to the material number I-PEX 82446-100B-02-D, which is a standard Evaluation Harness for CABLINE®-UX II 40Pin, 300mm, and 1-N structure. The official model information of I-PEX clearly lists 82446-100B-02-D, with a configuration of 40Pin Micro-Coaxial 46AWG, L=300mm, 1-N; the corresponding cable end connector uses 20532-040T-02-1, which is the CABLINE®-UX II 40Pin Plug Housing. From the perspectives of procurement and engineering replacement, the core value of this product is not just "replacing a connector," but also the need to match the 40Pin interface, 0.25mm pitch, cable length, 1-N wire sequence, wiring structure, and extremely thin coaxial cable parameters simultaneously. For the AWG#40 cable material compatibility requirements proposed for this project, compatible replacement cable sets can be developed around 20532-040T-02-1, but since the original 82446-100B-02-D is configured with AWG#46, when actually importing AWG#40, it should further confirm the wire diameter, termination process, impedance, and high-speed signal integrity to avoid directly determining full compatibility solely based on the AWG specification.
For engineers, when choosing the 82446-100B-02-D compatible replacement cable harness, it is recommended to prioritize confirmation of the CABLINE®-UX II 40Pin interface, connector model 20532-040T-02-1, cable length of 300mm, 1-N wiring sequence, Micro-Coax cable specification, and actual application speed, and then confirm the cable outer diameter and bending requirements according to the internal space of the device. For purchasing personnel, it is advisable to focus on connector supply stability, cable specification consistency, termination reliability, mass production capability, and sample verification cycle. CABLINE®-UX II itself provides 30/34/40/50Pin specifications, and the width of the 40Pin connector is approximately 14.1mm according to the official formula, with a mating height of 1.04 +0.06/-0.1mm, making it suitable for devices with high requirements for thickness, space, and high-density wiring. On this basis, our company can provide the I-PEX 82446-100B-02-D compatible replacement cable harness solution, which can be tailored to the actual equipment requirements of customers for the 20532-040T-02-1 connector, AWG#40 cable, cable length, wiring sequence, shielding structure, and termination technology, and can be introduced into mass production after sample testing.
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