Today, with the increasing demand for high-speed signal transmission, micro coaxial cable (micro coaxial) boasts characteristics such as high frequency low loss, anti-interference, thin, light, flexible, and is widely used in precision electronic products such as laptops, tablets, smartphones, and vehicle-mounted cameras. To ensure its stable performance in complex environments, the cable must undergo a variety of stringent tests before leaving the factory. This article combines the application example of the I-PEX 20532-030T-02 connector to sort out the common test items and judgment criteria for micro coaxial cable assemblies.
One, common test items and standards for ultra-fine coaxial cable束 (micro coaxial cable)
Visual inspection
Purpose: Confirm that the harness and connector appearance is normal.
The cable surface should be smooth, free of scratches, peeled skin, crushed injuries, foreign objects, dirt, etc.; the welding points should be full, without false welding and missing welding.
2. Continuity Test
Purpose: Ensure that the line is conductive and there is no open circuit.
Standard: Conductance resistance ≤ 1 Ω (or as per product set range).
Voltage Proof Test (Hi-pot Test)
Purpose: To verify the harness voltage resistance to prevent leakage or breakdown.
Standard: AC 300 V/0.5 mA/2 s, no breakdown or arc-over shall occur during the test process.
Insulation Resistance Test (IR Test)
Purpose: To test whether the insulation performance between conductors meets the standard.
Standard: Insulation resistance ≥ 10 MΩ (test conditions: DC 250 V/1 min).
Insertion and extraction force test
Objective: To confirm that the connector insertion and extraction force conforms to the design specifications, ensuring the reliability of the connectors.
Standard: Execute in accordance with the I-PEX 20532-030T-02 product specification.
Characteristic Impedance Test
Objective: To verify the impedance matching of cables in the circuit system, to avoid signal reflection and loss.
Standard: Generally controlled at 50 Ω ± 10%, the specific value depends on customer or product specification requirements.
I-PEX 20532-030T-02 Connector Introduction
Product series: CABLINE®-UX II (micro coaxial/dual-axis connector), where 20532 is the plug housing model, and 030T-02 indicates the 30-pin T-02 category.
• Stitches: 30.
Spacing: 0.25 mm.
Compatible Cable: Fits #44/#46 AWG and thinner micro coaxial cable.
Signal Rate Support: Suitable for high-speed differential signal systems such as USB 3.1 Gen 1 (5 Gbps), V-By-One HS 1.4 (4 Gbps), eDP (2.7 Gbps), MIPI, etc.
I-PEX 20532-030T-02 is a high-precision 30-core plug shell optimized for micro coaxial cable, featuring compact structure, strong signal integrity, excellent EMC shielding performance, and environmental compatibility. It is widely used in high-end consumer electronics, VR/AR headsets, medical probes, and industrial imaging equipment.
With its advantages of high frequency, low loss, thin, light, and flexible, the micro coaxial cable has become the core solution for high-speed transmission of precision equipment. In conjunction with high-performance connectors such as I-PEX 20532-030T-02, it can not only effectively improve the stability and signal integrity of the system but also ensure the long-term reliable operation of the product through rigorous testing processes. Every conductance, withstand voltage, and impedance test is a crucial link in ensuring quality.
We have long been focused on the design and customization of high-speed cable harnesses and ultra-fine coaxial cable assemblies, committed to providing stable and reliable high-speed interconnect solutions. If you have any related needs or would like to learn more, please contact: Yin Manager.
18913280527 (WeChat same number)。
