In today's era of increasingly high-speed signal transmission demands, micro coaxial cable (micro coaxial cable) boasts high-frequency low-loss, anti-interference, thin, light, flexible, and other characteristics, and is widely used in precision electronic products such as laptops, tablets, smartphones, and in-car cameras. To ensure that it maintains stable performance in complex environments, the harness must undergo a number of rigorous 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 harnesses.
One, common test items and standards for ultra-fine coaxial cable束
1. External inspection
Purpose: Confirm that the harness and connector appearance is normal.
The cable surface should be smooth, free of scratches, abrasions, crush injuries, foreign matter, dirt, etc.; the solder joints should be full, without bridging and no missing soldering.
2. Continuity Test
The purpose is to ensure that the line is conducting normally without any open circuit conditions.
Standard: Conductance resistance ≤ 1 Ω (or as per product specification range).
3. Voltage Proof Test (Hi-pot Test)
Objective: To verify the harness withstand voltage capability and prevent leakage or breakdown.
Standard: AC 300 V/0.5 mA/2 s, no breakdown or flashover should occur during the testing process.
Insulation Resistance Test (IR Test)
Purpose: To detect 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: Confirm that the connector insertion and removal force conforms to the design specifications, ensuring the reliability of the connector.
Standard: Execute in accordance with the product specification sheet of I-PEX 20532-030T-02.
6. 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 the customer or product specification.
I-PEX 20532-030T-02 connector introduction
• Product series: CABLINE®-UX II (micro coaxial/dual-axis connector), where 20532 is the plug shell model, and 030T-02 indicates the 30-core T-02 category.
• Stitch count: 30.
Spacing: 0.25 mm.
Compatible cable: Compatible with #44/#46 AWG and finer 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 designed for micro coaxial cable, with advantages such as 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, thinness, lightness, flexibility, micro coaxial cable has become the core solution for high-speed transmission of precision equipment. Complemented by high-performance connectors such as I-PEX 20532-030T-02, it not only effectively improves the stability and signal integrity of the system but also ensures the long-term reliable operation of the product through rigorous testing procedures. Every conduction, voltage resistance, and impedance detection is a key link in ensuring quality.
We have long been focused on the design and customization of high-speed signal cables and ultra-thin coaxial cables, committed to providing stable and reliable high-speed interconnect solutions. If you have related needs or want to learn more, please contact: Manager Zhang.
18913228573 (WeChat same number).
