I-PEX 81458-100B-02-D CABLINE®-VS II 40AWG/50Ω series ultra-thin coaxial cable replacement

40Pin high-density design: I-PEX 81458-100B-02-D ultra-fine coaxial cable assembly for compact high-speed connections

In laptops, display devices, industrial electronic equipment, and other space-limited electronic products, cables not only bear the electrical connection function but also need to兼顾high-speed signal transmission, shielding, flexible wiring, and assembly reliability within a limited space. The I-PEX 81458-100B-02-D is a 40Pin ultra-thin coaxial cable from the CABLINE-VS II series, using Micro-Coaxial Cable ultra-thin coaxial material, with wire specifications of AWG40, 50Ω, and standard cable length of 200mm, belonging to the 40Pin, 200mm, 1-N structure product. The cable is matched with the wire end connector model 20847-040T-01, and combined with the corresponding Shell, Lock Bar, and other structures to form a complete precision Harness. For engineers, the key value of such products lies in achieving multi-channel signal connections in a smaller installation space through ultra-thin wires and high-density connector structures; for purchasers, 81458-100B-02-D, 20847-040T-01, 200mm, 40Pin, AWG40, 50Ω are the core specifications that need to be重点核对 during supplier quotation, sample confirmation, and alternative development.

---

Structure and advantages of ultra-fine coaxial cables: Why can they combine "small size" and "high-speed signal"?

The core feature of extremely fine coaxial cables lies in their coaxial structure: the signal transmission conductor is located in the central area, surrounded by insulating medium and shielding structure to form a relatively independent transmission channel, with the outermost layer providing protection. Compared with ordinary single-core wires, the coaxial structure can form a clearer signal transmission and shielding relationship under a limited wire diameter; when this structure is further reduced to an extremely fine size at the AWG40 level, it can meet the requirements of high-density, miniaturized equipment for wiring space. Taking I-PEX 81458-100B-02-D as an example, it uses AWG40, 50Ω Micro-Coaxial Cable, with 40 extremely fine coaxial cables together forming a high-density cable bundle, which is conducive to reducing the overall space occupation of the cable bundle. For engineers, the advantages of extremely fine coaxial cables are not only "thinner wire diameter" but also reflected in aspects such as high-density wiring, space saving, independent signal channels, and shielding structure; for purchasers, it means that when choosing alternative products, they cannot only compare the outer diameter and price of the wire materials but should also confirm that the wire structure, impedance, Pin number, and terminal processing are matched with the original design.

---

From engineering design to procurement verification: The ultra-fine coaxial cable assembly cannot only be looked at in terms of "whether it can be connected."

In actual projects, ultra-fine coaxial cable bundles belong to precision cable harness products with high processing accuracy requirements. The 81458-100B-02-D model adopts a 40Pin structure, uses the connector 20847-040T-01 at the connector end, has a cable length of 200mm, and the Micro-Coaxial Cable specification corresponding to the drawing is AWG40, 50Ω. Due to the thinness of the wire, the production process involves multiple steps such as cutting the wire, stripping the wire, handling the shielding layer, arranging the wire sequence, connecting the ends, Bonding, UV Glue, and Tape fixing. Therefore, the verification of substitute products cannot simply stay at "continuity test". Engineers need to focus on confirming Pin Assignment, connector matching, cable length, the shape of the outgoing line, and the end structure; purchasing personnel suggest providing the complete material number and key parameters together when inquiring for quotes, and requiring suppliers to confirm basic quality items such as size, wire sequence, continuity/short circuit, insulation resistance, voltage resistance, and appearance. For high-speed applications, it is also necessary to further confirm signal integrity and EMI-related requirements based on the actual design of the whole machine to avoid situations where "the mechanical installation is possible, but the actual high-speed signal performance does not meet the requirements."

---

Selection, compatibility, and alternative solution references and suggestions: Develop for compatibility with the target 81458-100B-02-D

If the customer's existing equipment uses I-PEX 81458-100B-02-D, it is recommended to use the original model as a benchmark when carrying out compatibility replacement, and to confirm each item from multiple dimensions such as connectors, pin count, wire specification, impedance, length, wire sequence, and terminal structure. Especially, 40Pin does not mean that all 40Pin ultra-thin coaxial cables can be directly replaced; it is also necessary to confirm the specific connector series, connector model, Harness structure, and equipment installation direction. For such projects, our company focuses on the production and manufacturing of ultra-thin coaxial cables, and can carry out compatibility development and customization according to the customer-provided original products, drawings, and equipment requirements, and can provide I-PEX 81458-100B-02-D compatibility replacement cable solutions. For this model, we can develop samples around the key specifications such as the 20847-040T-01 connector, 40Pin, AWG40, 50Ω, and 200mm length, and further confirm the size and processing requirements based on the customer's actual assembly space and cable routing. Before formal mass production, it is recommended that the customer conduct mechanical size, connector matching, electrical performance, and actual equipment assembly testing through samples to confirm that the replacement cable meets the project requirements.

---

With ultra-fine coaxial manufacturing capability to meet high-density, high-speed, and miniaturized connection requirements
I-PEX 81458-100B-02-D is a representative 40Pin ultra-thin coaxial cable assembly, with core specifications including AWG40, 50Ω Micro-Coaxial Cable, 200mm cable assembly length, and 20847-040T-01 cable end connector. The ultra-thin coaxial cable achieves signal transmission and shielding requirements under a smaller line diameter through a precise coaxial structure, and is conducive to meeting the requirements of modern electronic devices for miniaturization, multi-channel, and high-speed interconnection with the cooperation of high-density connectors. For engineers, choosing such cable assemblies requires comprehensive consideration of structural, electrical, and assembly requirements; for purchasers, it should be based on complete part numbers and key specifications as the basis for supplier selection and alternative verification. I am【3W Electronic Components Network】Focusing on the research and development of high-speed ultra-fine coaxial cable assemblies and connectors, and alternative solutions. If you have selection or verification requirements, or product needs, please contact:Manager Zhang 18913228573 (WeChat same number)Our company can provide I-PEX 81458-100B-02-D compatible cable assembly solutions and offer production and customization services for extremely thin coaxial cable assemblies, providing more flexible cable assembly options for customers' high-speed, miniaturized electronic equipment.