Categorization：Harness Component
With laptops, tablets, AR/VR devices, display modules, and miniaturized electronic devices continuously developing towards high speed, high density, and thinness, internal signal connections not only require "fast transmission" but also need to maintain stable signal quality within a limited space. Compared to ordinary wires, extremely thin coaxial cable bundles form a relatively complete transmission structure through the central conductor, insulating layer, shielding layer, and external sheath, allowing high-speed signals to be transmitted in a controlled electrical environment while also considering flexibility, space utilization, and electromagnetic interference resistance. I-PEX's CABLINE®-UX II is specifically designed for these requirements, using a 0.25mm pitch, Vertical (Right Angle) structure, with a reference transmission speed of 5Gbps/lane NRZ, and supporting AWG44, AWG46 Micro-Coax specifications.
This product corresponds to the material number I-PEX 82906-100B-02-D, which belongs to the CABLINE®-UX II 40Pin ultra-thin coaxial cable assembly. According to the official I-PEX information, this standard Harness uses a 46AWG Micro-Coaxial Cable, with a length of 100mm and wire positions defined as 1-N; the connector model used at the cable end is 20532-040T-02-1. For engineers, the 40Pin, high-density 0.25mm Pitch connection structure can achieve multi-channel signal connections within a smaller PCB area, while the ultra-thin coaxial cable assembly has good flexibility, suitable for wiring in narrow spaces and rotating axis areas inside the equipment. The official I-PEX also provides a reference application: the UX II 40Pin cable assembly processed with a coaxial cable of approximately 0.24mm outer diameter can pass through a shaft or small-diameter pipeline with an inner diameter of approximately Φ2.66mm.
The so-called ultra-fine coaxial cable束 is suitable for high-frequency transmission, not simply because "the wire is very thin," but because the coaxial structure helps engineers better control the impedance, crosstalk, and electromagnetic radiation during the process of high-speed signal transmission. The higher the frequency of the high-speed signal, the faster the rise time, and the more likely impedance discontinuity, crosstalk, return loss, and EMI issues in the transmission line will affect signal integrity. Therefore, connectors, cables, shielding structures, and termination processes must be designed as a complete system. CABLINE®-UX II adopts a multi-point grounding structure, and the official shielding path is Wire Shield→Ground Bar→Plug Shell→Receptacle Shell→PCB, which is conducive to forming a continuous grounding and shielding path; its reference applications cover high-speed interfaces such as USB 3.1 Gen1, V-By-One HS 1.4, HDMI 1.3, eDP, and MIPI. It should be noted that 5Gbps/lane is an official reference transmission specification, which does not mean that any 82906-100B-02-D cable束 will necessarily achieve this speed under all system conditions; actual performance also depends on the cable, connector, PCB, signal distribution, impedance design, and overall system SI verification.
For the compatibility and substitute of I-PEX 82906-100B-02-D, it cannot be simply replaced by following the "40Pin, 100mm ultra-thin coaxial cable" specification. Instead, it should focus on checking the connector model, Pin count, cable specification, impedance, cable length, wire structure, and wire position definition. Among these, the connector at the cable end of this product is 20532-040T-02-1, with wire position defined as 1-N, which directly relates to the correspondence of PCB terminal pins and signal connection accuracy. When inquiring for quotes, purchasers should also clarify whether they require maintaining the original connector structure, cable AWG, length tolerance, shielding treatment, and terminal fixation process; engineers should further pay attention to the impedance consistency of high-speed signals, crosstalk, return loss, insertion loss, and actual SI test results. The 40Pin Plug Housing recommended by I-PEX for 20532-040T-02-1 is 20533-240E, and the official standard 40Pin, 46AWG, 100mm, 1-N sample Harness is 82906-100B-02-D. Our company can provide: I-PEX 82906-100B-02-D compatible and substitute cable solution, which can be matched and developed according to the actual equipment structure and technical requirements of customers, including connectors, ultra-thin coaxial cable materials, cable length, Pin position definition, and cable assembly processing methods, to provide compatibility and substitute support for engineering verification, sample prototyping, and bulk procurement.
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