I-PEX 82679-100B-01-D 40P high-speed signal transmission ultra-thin coaxial cable alternative

What is an ultra-fine coaxial cable assembly? Understand the I-PEX 82679-100B-01-D product and its application value

Micro-Coaxial Cable Harness is a high-density signal transmission component assembled with miniature coaxial cables and precision connectors, featuring fine wire diameter, good flexibility, and a compact shielding structure. It is suitable for electronic systems with limited internal space, high signal density, and requirements for electromagnetic interference control. Compared with ordinary wires, the ultra-fine coaxial cable forms a coaxial transmission structure through the central conductor, insulation layer, and external shielding conductor, which is conducive to controlling the signal transmission characteristics and reducing external interference. Compared with traditional FPC wiring, it can provide flexible routing and independent shielding channels in specific high-speed signal applications, but the actual transmission performance still needs to be verified in combination with cable specifications, connector structure, and system design. The I-PEX 82679-100B-01-D ultra-fine coaxial cable harness introduced in this article belongs to the CABLINE®-UM series evaluation harnesses, using a 40PIN connector scheme, AWG 40 ultra-fine coaxial cable, and a 0.4mm spacing connector system. This series of connectors features right-angle wiring, vertical insertion and removal, full shielding design, and mechanical lock, and is suitable for high-speed display, industrial vision, precision electronic equipment, and other internal connection scenarios that require miniaturization and signal integrity. For R&D engineers, selecting ultra-fine coaxial cable harnesses reasonably can help balance wiring space, signal transmission, and connection reliability; for purchasing personnel, clearly defining product part numbers, connector specifications, cable wire diameter, and assembly dimensions is an important foundation for supplier evaluation and alternative solution verification.

Product Core Specification Analysis—40PIN, 0.4mm Pitch, AWG 40 ultra-thin coaxial cable

For the target model I-PEX 82679-100B-01-D, the selection and manufacturing of the harness should focus on key parameters such as connector interface, cable specification, wire sequence, and finished length. According to the official product information of the I-PEX CABLINE®-UM series, this model corresponds to a 40PIN, AWG 40 ultra-fine coaxial cable with a two-end connection (1-1) structure. The corresponding harness length in the drawing series is 300mm. The plastic housing model of the matching connector at the wire end is 20878-040T-01, which corresponds to the 40PIN specification, with a connector contact pitch of 0.4mm. It should be noted that 20878-040T-01 is a male plastic housing part number and does not represent a complete connector component on its own; the actual matching structure needs to be confirmed in combination with the corresponding metal housing, lock cap, and other assembly parts. The official materials of the I-PEX CABLINE®-UM series indicate that this series supports high-speed transmission applications up to 40Gbps/lane PAM3, and employs ZenShield® full shielding and multi-point grounding design; however, whether the specific harness can reach a certain data rate still depends on the cable, electrical design, connector combination, and terminal system verification. For engineers, when introducing the design, they should check the PIN correspondence in the original engineering drawings, cable length tolerance, connector direction, welding area, and fixed structure; for purchasers, they should include these parameters in the quotation specifications and sample acceptance standards to avoid judging product compatibility solely based on appearance or PIN quantity.

Three, ultra-fine coaxial cable束 compatibility alternative manufacturing - for engineering development and procurement cost reduction needs

In the process of high-speed electronic equipment development, product iteration, and supply chain management, the original factory's ultra-fine coaxial cable assembly may face challenges in procurement costs, delivery time, supply channels, or customization response. In response to these needs, our company focuses on the production and manufacturing of ultra-fine coaxial cable assemblies. We can carry out cable structure analysis, material selection, connector matching, precise assembly, and sample verification based on the product drawings, samples, and technical requirements provided by customers, and offer compatible alternative manufacturing solutions with clear technical basis. Around I-PEX 82679-100B-01-D, we can provide a compatible alternative cable assembly solution, focusing on the assessment of requirements such as 40PIN, 0.4mm pitch, AWG 40 ultra-fine coaxial cable, both-end connection structure, and target finished product length. In the project development stage, we can cooperate with customers to confirm the connector plastic body model 20878-040T-01 and related accessories, and assess the wire sequence, wire exit direction, fixing method, shielding continuity, and dimensional tolerance according to actual assembly requirements. For R&D engineers, we pay attention to the mechanical interface, electrical connection, and assembly compatibility between the samples and the original design; for purchasing personnel, we can conduct project assessment around target specifications, purchase quantity, delivery requirements, and quality acceptance standards, assisting customers in establishing a more flexible cable assembly supply selection. The ultimate feasibility of the compatible alternative should be determined by connector matching confirmation, sample testing, and customer recognition of the results, ensuring that the alternative product can meet the actual application requirements of the equipment.

Four, selection and compatibility and alternative solutions reference and suggestions

When selecting a compatible alternative cable assembly for the I-PEX 82679-100B-01-D, engineers and purchasers are recommended to conduct an assessment from four dimensions: connectors, cables, structural dimensions, and verification processes. Firstly, in terms of connectors, it is necessary to confirm the mating interface of the CABLINE®-UM series, the 40PIN contact arrangement, 0.4mm spacing, locking structure, and metal shielding components. It is especially important to check the assembly relationship between the 20878-040T-01 plastic body and other matching parts. Secondly, in terms of cables, it is crucial to verify the specifications of AWG 40 conductors, characteristic impedance, cable outer diameter, insulation material, shielding structure, and bending requirements. It is not sufficient to simply consider the electrical performance equivalent based on the same AWG wire diameter. Thirdly, in terms of structure, the original engineering drawing should be used as a reference to confirm the actual length of the target cable assembly, the connection forms at both ends, the PIN correspondence, the lead direction, the welding area, and the fixing material. Finally, for verification, it is recommended to first carry out sample production and assembly inspection, and then conduct conduction, short-circuit, insulation, size, connection retention force, and necessary high-speed signal integrity tests according to the application requirements. For equipment with high-speed data transmission requirements, impedance continuity, insertion loss, return loss, and crosstalk performance should also be evaluated based on the actual interface and system design. By establishing clear technical specifications and acceptance conditions, customers can assess the potential value of alternative cable assemblies in terms of procurement cost, lead time, and supply chain flexibility, while considering both design compatibility and product quality.

The ultra-fine coaxial cable assembly is an important component of high-density, high-speed signal connection systems, and its performance is closely related to connector compatibility, cable structure, precise assembly, and quality verification. Around the I-PEX 82679-100B-01-D, our company can carry out compatibility and alternative assessment as well as customized manufacturing for target specifications such as 40PIN, 0.4mm pitch, and AWG 40 ultra-fine coaxial cables, providing technical comparison and sample verification support for R&D engineers, and offering more flexible supply chain options for purchasers. Welcome to provide product drawings, physical samples, or specific technical requirements for us to jointly evaluate applicable ultra-fine coaxial cable assembly manufacturing solutions.

I am【7A Electronic Network】We have mature production and engineering research and development experience in the field of ultra-fine coaxial cable bundles, and can assist with model matching and structural replacement. Please contact Manager Zhang for consultation.18913228573 (WeChat number).