Categorization:Harness Component
Solution for 40PIN ultra-thin and high-density electronic devices with extremely fine coaxial cable束
With the continuous development of laptops, AR glasses, industrial cameras, AI vision equipment, and high-speed display modules towards thinness and miniaturization, the space inside the devices for wiring and connectors becomes increasingly limited. Traditional wiring is gradually facing higher engineering requirements in terms of space occupation, bending adaptability, and high-speed signal transmission. Ultra-fine coaxial cables have therefore become one of the important solutions for high-density and high-speed signal connections.
This product introduction corresponds to the I-PEX CABLINE-CX II With Cover series 83006-100B-01-D. According to the official product information of I-PEX, this model belongs to the 40Pin Micro-Coaxial Harness, using 46AWG ultra-fine coaxial wire, cable length of 300mm, 1-1 Wiring, and adopting ZenShield type structure. The matching CABLINE-CX II connector uses 0.25mm Contact Pitch, 40Pin, horizontal insertion and extraction structure, and has mechanical lock, EMI shielding cover, and multi-point grounding design, suitable for internal connections of high-speed electronic devices with limited space.
For engineers, what is worth paying attention to in 83006-100B-01-D is not just the number "40PIN," but the entire specification combination of 40PIN + 0.25mm Pitch + 46AWG Micro-Coaxial + 300mm + 1-1 Wiring. For purchasers, this means that during domestication, supply chain optimization, or second supplier development, compatibility confirmation can be conducted around the complete wire harness structure, wire diameter, connector interface, length, and wire sequence, rather than simply comparing a connector part number.
Our company can provide a compatible and alternative harness solution for 83006-100B-01-D, and can develop, make prototypes, and manufacture ultra-fine coaxial harnesses according to the connector interface, PIN number, wire diameter, wire length, wire sequence, and application requirements of the customer's product.

Why are AR glasses' image modules increasingly inclined to adopt extremely thin coaxial cables?
AR glasses are one of the most typical potential application scenarios for extremely thin coaxial cable束. Unlike ordinary consumer electronics, AR glasses need to meet multiple requirements simultaneously, such as lightweight, ultra-thin, comfortable wearing, high-speed image transmission, and reliable wiring in limited spaces. Particularly, between the image module, display module, camera module, and the main control unit, it is necessary to transmit high-speed signals while allowing the cable束 to be arranged in narrow structures. Therefore, the size, flexibility, shielding performance, and connector volume of the cable materials will directly affect the product structure design.
The advantage of extremely thin coaxial cables lies in their ability to achieve separate signal transmission structures at very small wire diameters, and through coaxial shielding structures, help control external electromagnetic interference and mutual influence between signals. For devices like AR glasses that are highly sensitive to space, the cable束 not only needs to "work," but also needs to minimize the occupation of optical modules, temple arms, pivot axes, and internal structure space. The product positioning of I-PEX's CABLINE-CX II With Cover clearly emphasizes its narrow spacing, low mating height, EMI shielding, and design suitable for limited spaces, and specifically showcases the application of CABLINE Harness in narrow spaces such as hinges.
Therefore, from the perspective of engineering design, the use of extremely thin coaxial cables in AR glasses image modules is not solely due to the fact that "the wire is very thin," but rather because it needs to simultaneously address issues such as high-speed signal transmission, limited space wiring, cable flexibility, EMI control, and whole-machine lightweighting. For future AR/VR/MR devices, smart glasses, miniature display modules, and camera modules, extremely thin coaxial cable bundles have high application value.
For products using micro connectors with a pitch similar to 0.25mm, engineers need to pay special attention to the matching dimensions of the connectors, wire diameter, wire sequence definition, shielding structure, bending environment, and high-speed signal integrity during selection. Purchasers need to confirm whether the supplier has stable capabilities in extremely fine coaxial cable termination, shielding processing, and mass production.

What should engineers and purchasing personnel focus on in terms of the engineering parameters and matching connectors for project 83006-100B-01-D?
For 83006-100B-01-D, the core harness specifications can be clearly summarized as: 40PIN, 46AWG Micro-Coaxial, 300mm, 1-1 Wiring, ZenShield type. The accompanying CABLINE-CX II With Cover connector uses a 40PIN, 0.25mm Contact Pitch; in the I-PEX official recommended parts, 20974-040T-01 is a 40Pin Plug Housing, which is the plastic body of the plug component in the cable end plug assembly, while the complete With Cover Plug Cable Assembly corresponds to part number 20977-040T-01. Therefore, when conducting alternative development or BOM verification, it is necessary to distinguish between the "cable end connector main part number" and the "complete Plug Cable Assembly part number" to avoid confusion in procurement or engineering communication.
From the connector platform parameters, the CABLINE-CX II With Cover has a Contact Pitch of 0.25mm, a Signal Pin Count of 40, a Mated Height of 0.83±0.17mm, a maximum covered height of 1.00mm, and a working temperature range of -40℃ to +85℃; this platform supports AWG39, AWG44, and AWG46 Micro-Coaxial Cable, with the official documentation specifically noting that there are注意事项 regarding characteristic impedance matching for some wire diameters. For 46AWG harnesses, rated current parameters under the conditions of 0.1A/contact, up to 40 contacts, are also provided.
For hardware engineers, when developing a compatible alternative cable assembly for the 83006-100B-01-D, it is recommended to focus on the actual fit relationship between the PCB socket and the plug housing at the cable end, the 40PIN definition, the direction of Pin 1, the 1-1 wiring sequence, the 300mm cable length definition, the cable outer diameter, the shielding structure, and the mechanical space. If the application involves high-speed differential signals, further verification should be carried out by combining the actual signal protocol, impedance requirements, and SI test results. The I-PEX official website also provides product specifications, 2D drawings, SI test reports, and Single/Differential Touchstone data for the CABLINE-CX II product, which can be used as reference materials during engineering verification.
For purchasing personnel, it is recommended not to substitute procurement solely based on the three parameters "40PIN, 0.25mm, 46AWG". What truly affects compatibility is the entire set of combinations including connector structure, PIN number, pitch, wire diameter, wire length, wiring, shielding, and termination technology. Our company, as a manufacturer of ultra-thin coaxial cable assemblies, can develop samples and carry out compatibility substitution production around the above parameters, providing customers with a cable supply solution covering specifications confirmation, sample production, and mass production.

Four, selection and compatibility with reference and suggestions: from sample verification to bulk procurement
If the customer's existing product uses I-PEX 83006-100B-01-D and hopes to find a compatible alternative ultra-thin coaxial cable assembly, it is recommended to first confirm the specifications based on the original product. For this model, the core identification information can be summarized as: 40PIN / 0.25mm connector pitch / 46AWG / 300mm / 1-1 wiring / ZenShield type / CABLINE-CX II With Cover. In the I-PEX official model list, 83004, 83005, and 83006 correspond to 100mm, 200mm, and 300mm of 40Pin, 46AWG, 1-1 cable assemblies, respectively. Therefore, when the customer needs to change the cable length, the corresponding length scheme should be reconfirmed according to the actual assembly space, and the connector and wire sequence definitions cannot be ignored after simply changing the cable length.
During the process of compatible alternative development, if the customer specifies the cable end connector as 20974-040T-01, it is recommended to simultaneously confirm the corresponding Plug Shell, Lock Bar, Cover, and PCB end Receptacle and other matching structures, because I-PEX's CABLINE-CX II With Cover is not a single plastic connector, but a system composed of cable end components, shells, lock clips, shielding structures, and board end connectors. In the I-PEX official recommended parts, 20974-040T-01, 3655-0401, 20975-040T-01, 20977-040T-01, and 20976-040E-01 each perform different component functions.
For customers in need of domestic substitution, second supplier, cost optimization, or supply chain diversification, our company can carry out compatible alternative development based on the I-PEX 83006-100B-01-D target specification, and focus on sample matching and production manufacturing for 40PIN, 0.25mm pitch, 46AWG, 300mm, 1-1 Wiring, and the corresponding wire harness connector 20974-040T-01. For engineering projects, we recommend conducting small batch sample verification first, and then completing mechanical fitting, high-speed signal, EMI, reliability, and batch consistency verification according to the actual equipment of the customer, ultimately introducing mass production. This approach can both reduce the risk of alternative introduction and facilitate the establishment of a complete alternative material management basis by the engineering and procurement departments.

The 83006-100B-01-D represents a typical high-density, ultra-thin 40PIN ultra-fine coaxial cable assembly solution, with 46AWG wire, 0.25mm pitch connectors, and a 300mm 1-1 Wiring structure, making it suitable for electronic devices with compact space and high-speed signal connection requirements. As AR glasses, miniature displays, industrial vision, cameras, and AI terminals continue to develop towards thinness, the application value of ultra-fine coaxial cable assemblies will also be further enhanced. For engineers and purchasers who are looking for alternative suppliers for the I-PEX 83006-100B-01-D, our company can provide compatible alternative cable assembly solutions for this model and support project cooperation from specification confirmation, sample prototyping to mass production.
I am【7A Electronic Network】Focus on the research and development of high-speed ultra-fine coaxial cable assemblies and connectors, and alternative solutions. If you have selection or verification needs, or product requirements, please contact: Manager Yin.18013280527 WeChat number).