I-PEX 82893-100B-02-D CABLINE®-UA II 44AWG/50Ω series ultra-thin coaxial cable replacement

Why do endoscopes particularly require extremely thin coaxial cables?

One of the major differences between endoscopes and ordinary electronic devices is that the internal space is extremely limited while it needs to simultaneously perform multiple functions such as image collection, data transmission, and control signals. Especially for micro cameras, lens modules, and areas that require bending or passing through, the cable束 cannot be too thick, otherwise it will increase the overall diameter, occupy internal space, and affect the structural layout. The extremely thin coaxial cable achieves multi-channel signal transmission within a limited space by reducing the diameter of the wire material, and at the same time, it improves the high-speed signal transmission environment by utilizing the shielding layer of the coaxial structure. Therefore, for devices like endoscopes that have "small size + high density + high signal integrity," the value of the extremely thin coaxial cable is not just "thinner wire," but it can achieve a better engineering balance between space, signal, and shielding. I-PEX's CABLINE®-UA II adopts a 0.3mm Contact Pitch and Vertical Right Angle structure, and the official also demonstrated the application examples of Micro Coax cable束 with an outer diameter of about 0.29mm passing through Φ2.65mm diameter shafts or hoses. This kind of structural idea has strong reference value for equipment that requires narrow space wiring.

The advantages of ultra-fine coaxial cables for endoscopes lie in their "slimness, stability, and resistance to interference."

For endoscope engineers, the high-speed image signal output from the camera module requires high signal integrity for the cable assembly, which needs to minimize external noise, crosstalk, and changes in signal quality during transmission. The extremely thin coaxial cable consists of a central conductor, insulating layer, shielding layer, and outer sheath, providing a relatively complete transmission environment for high-speed signals; combined with the shielding and grounding structure of the connectors, it can further improve EMI control. The official information of CABLINE®-UA II emphasizes its multi-point grounding design and anti-EMI performance, and provides a reference transmission speed of 5Gbps/lane NRZ, listing USB 3.1 Gen1, V-by-One HS 1.4, HDMI 1.3, eDP, and MIPI as reference applications. For endoscopic equipment, this means that under the extremely compact camera module space, high-density, high-speed signal connections can be completed using extremely thin coaxial cable assemblies, while minimizing the cable's occupation of the internal space.

I-PEX 82893-100B-02-D: 26P ultra-thin coaxial cable bundle solution

This article corresponds to the wire harness product number I-PEX 82893-100B-02-D, which belongs to the CABLINE®-UA II 26Pin ultra-thin coaxial cable. According to the I-PEX official model data, this evaluation harness is 26Pin Micro-Coaxial, 44AWG, 100mm, 1-N structure; the specific 82893C0 engineering drawing further annotates 50Ω Micro-Coax, AWG#44, 100.0±5.0mm information, and both ends use 20497-026T-30 Plug Housing, and is equipped with 2679-026-10 metal cap. For engineers, when developing compatible harnesses, they cannot only focus on "26Pin" and "100mm", but also need to check the wire specifications, impedance, Pin Mapping, termination structure, and fixing process; for purchasing personnel, these parameters can serve as important references for supplier sampling, specification confirmation, and alternative material evaluation.

Selection and compatibility as well as alternative solutions reference and suggestions

If such extremely fine coaxial cable assemblies are to be applied to endoscopes, miniature camera equipment, or other high-speed signal equipment in confined spaces, it is recommended that engineers first confirm the available internal space of the equipment, the camera module interface, the number of Pins, cable length, signal rate, and actual impedance requirements, and then verify whether the connectors and cable structures are compatible. This article specifies the cable end connector model as 20497-026T-30, which requires it to be compatible with AWG#40 wire. It should be noted that the I-PEX official CABLINE®-UA II page lists AWG#40 under the Discrete Wire specification, while the Micro-Coax official specification is AWG#42/AWG#44/AWG#46. Therefore, if AWG#40 is used for Micro-Coax compatibility alternative development, it should be verified through a special project based on the actual wire outer diameter, impedance, termination process, and electrical performance, rather than simply judging compatibility based on the AWG number. For procurement personnel, it is recommended to use "connector model + wire AWG + impedance + cable length + Pin definition + termination structure" as a complete quotation condition. Our company can provide: I-PEX 82893-100B-02-D compatible alternative cable assembly solutions, which can carry out compatibility development and production of extremely fine coaxial cable assemblies according to the actual product structure and project requirements of customers.

The endoscope requires not just a simple "thin wire," but a high-density, high-speed connection solution.
From the perspective of engineering applications, the main reasons for choosing extremely thin coaxial cables can be attributed to their small space occupation, strong capability of high-density wiring, compatibility with high-speed signal transmission, and shielding against interference. Especially for camera modules, miniature displays, and other high-speed data links, the cable束 not only needs to fit into the space but also maintain a stable signal transmission environment within the limited space. I-PEX 82893-100B-02-D provides an original engineering reference for a 26P CABLINE®-UA II extremely thin coaxial cable束, and around the 20497-026T-30 connector and the specified AWG#40 wire material requirements of the project, further compatible alternative development can be carried out. I am【3W Electronic Components Network】Professionally providing mature alternative solutions for high-speed ultra-fine coaxial cable assemblies and connectors, as well as engineering and product support. If you have any needs, please contact:Manager Zhang 18913228573 (WeChat number same)For customers who require domestic substitution, second supplier introduction, or customized wiring harnesses, the line length, Pin definition, impedance, wire diameter, and termination process can be further confirmed according to the actual equipment structure, thereby forming a very fine coaxial cable solution suitable for specific endoscopes and micro equipment.