In modern electronic systems, signal integrity and space constraints are key considerations in the design of high-speed data transmission. I-PEX CABLINE®-VS II series 81619-100B-02-D extremely fine coaxial harness assembly is a miniature shielded coaxial harness product widely used in the industry, and has applications in consumer electronics, communication equipment and embedded systems.
In engineering practice, we often encounter challenges such as long batch procurement cycle, high cost or unstable supply. To help customers solve these problems, we have introduced an engineering equivalent replacement for this model, which can provide more stable supply chain support while meeting performance parameters.

1. product overview and application background
I-PEX 81619-100B-02-D is a 20-pin, shielded miniature coaxial (micro-coaxial) wire harness assembly. Both ends of the connector are rectangular plugs, with a length of about 200 mm and a spacing of 0.5mm. It is designed with both high-density wiring and high-frequency signal transmission capabilities, and has a mechanical lock structure to ensure connection reliability.
Typical applications for such components include, but are not limited:
1.1. Internal high-speed data links, such as display interfaces, camera modules, etc;
1.2. Internal signal wiring of consumer electronic equipment;
1.3, embedded systems and industrial control electronic modules are connected.
In these applications, there are high requirements for the flexibility, shielding performance and dimensional constraints of the harness, so the selection needs to take into account electrical performance, mechanical reliability and manufacturing consistency.

2. engineering selection considerations
When considering 81619-100B-02-D or other similar very fine coaxial harness assemblies, engineers typically focus on the following key parameters:
2.1. Connector spacing and number of pins:
The assembly uses a 0.5mm connector pitch and a 20-pin design for compact connection wiring while supporting high signal density.
2.2, Shielding and EMI Control:
The typical advantage of miniature coaxial wiring harnesses is a high level of electromagnetic shielding, which can help reduce interference susceptibility, especially in high-speed link (e. g. PCIe, USB4/Thunderbolt class transport) designs.
2.3. Mechanical reliability and assembly compatibility:
The plug-and-plug structure and mechanical latch design improve the consistency of assembly and the durability of repeated insertion and removal, which is especially important for mass production and assembly line automation.
2.4, lead time and customization flexibility:
Original parts usually have long lead times and minimum order quantities, which pose supply risks for mass production projects. Therefore, when looking for alternatives, we should not only match the function, but also take into account the stability of the supply chain.

3. the advantages of our alternatives
We are able to offer customized alternatives to these I-PEX models with the following engineering advantages:
3.1. High design matching: the number of pins, connector spacing, length and shielding structure can correspond to the original model; Support mechanical lock, double-ended plug and other structural options to ensure that there is no need to change significantly in the existing hardware design.
3.2. Performance parameters: strictly control the coaxial line impedance, shielding layer coverage and contact resistance and other key indicators.
3.3, manufacturing and reliability control: provide RoHS/REACH and other compliance certification, the factory has stable production capacity, can be flexible production according to different batch requirements, support customer-specific testing and verification services.
3.4. Strong supply chain stability: Compared with relying on a single original factory component, we can control the source of materials and spare parts inventory through multiple channels.

In the field of high-speed signal design, the appropriate wiring harness assembly is the basis for ensuring system performance and reliability. Although the I-PEX 81619-100B-02-D is an industry-approved product model, it may not always be the best choice in terms of supply cycle or cost. Our proposed alternative is based on a rigorous engineering selection logic that provides a controllable, stable and sustainable alternative path for your design through consistent control of electrical and mechanical characteristics.
I amThunder speed very fine coaxial wire harness network], Specializing in the customized production of extremely fine coaxial wire harnesses and matching terminals and board connectors. If you need technical evaluation or project cooperation, please contact:Manager Zhang 18913228573(WeChat with the same number).
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Mr. Zhang
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About Us
Thunderspeed extremely fine coaxial wire harness netBelongableSuzhou Huicheng Yuan Electronic Technology Co., Ltd.,We focus onVery fine coaxial wire harnessThe company is deeply engaged in the field of high-speed transmission, with mature manufacturing technology, strict quality management system and rich industry application experience, products are widely used in consumer electronics, industrial control, medical equipment, intelligent security and other fields. We welcome customers in various industries to contact us at any time.