The ultra-fine coaxial cable connector is mainly used to connect digital signals between module boards using differential transmission through ultra-fine coaxial cables. In order to perform appropriate signal transmission, the central conductor of the transmitted signal needs to be connected to the signal circuit on the PCB board through the terminals of the connector. The outer conductor of the cable needs to be electrically connected to the PCB board through the metal component of the connector - the casing. The electrical connection between the outer conductor and the PCB board through the connector housing is called "grounding"
1. How to choose a very thin coaxial connector? ：
Have you ever been confused about how to choose a very thin coaxial connector for high-speed transmission?
There are many factors that can make choosing a connector difficult.
To help you make easier choices, this article provides some examples to illustrate how you should choose the connector that is most suitable for your current application.
Have you ever encountered the following question: 'I want to choose an extremely thin coaxial connector, but how should I make a decision?'?
The decision you make will have a profound impact, as connectors are a very important electronic component that will directly affect the performance of the device.
If you choose the wrong connector, it may prevent you from achieving the target performance.
So, is there a better way to choose ultra-thin coaxial connectors?
If you follow the steps below, the selection process can proceed relatively smoothly.
① Clearly define transmission standards
Different devices and components follow different transmission standards. Before selecting a connector, please choose the signal to be transmitted. The transmission speed is determined by the transmission standard.
② EMC mitigation measures
What is Electromagnetic Compatibility (EMC)?
When a signal is transmitted, it emits noise to the surrounding environment (EMI) and is also affected by the surrounding environment noise (EMS). The noise generated by the signal can have adverse effects on the performance of peripheral devices. Similarly, when environmental noise interferes with signals, their transmission will also be adversely affected.
③ Necessary number of pins
The next step is to select the required number of pins for the application. Choosing a large number of pins requires a larger connector, which takes up more space on the PCB. This also increases the cost.
④ Connector size specification
The connector size is represented by the height direction, spacing arrangement direction, and depth direction.
Among them, the most common limitations are height and spacing dimensions
Why is larger fitting size of connectors important?
The ultra-fine coaxial connector female socket is installed on the PCB and then fitted with the male socket wire harness. If the fitting height is too high, it may interfere with the device casing, causing the casing to not be installed as planned.
What is spacing?
The spacing refers to the distance from the center of one terminal pin to the center of the next terminal pin.
Why is spacing important?
For extremely thin coaxial connectors, the spacing between the connectors limits the larger outer diameter of the cables that can be used.
The larger the cable diameter, the lower the loss, resulting in better transmission performance.
