PCB connector selection tips

Due to the continuous increase in data rate, the market structure of PCB connectors is being subverted a little bit. Nowadays, it is very important to cleanly transmit signals through PCB traces, and the data rates of servers, switches and storage devices are constantly rising. So how should customers enhance the I / O connection on the circuit board? This involves the purchase of PCB connectors. Konnra connector engineers will share with you the 5 key points for selecting PCB connectors. These parameters Very important for creating efficient PCB designs.
Regarding the selection of PCB connectors, we usually consider the five aspects of the form factor, signal loss rate, EMI and ESD shielding, cable termination, and mechanical strength. The specific contents are as follows:
PCB
1. The external dimensions of the PCB connector
The small connector product footprint simplifies PCB design, reduces costs, and reduces transmission losses, while achieving connection from point A to point B. The small contact pitch makes the connector thinner and has more convenient smaller circuit boards and backplanes.
2, the signal loss rate of the PCB connector
With the exponential increase in data rate, insertion loss becomes crucial. How to reduce insertion loss is a problem that manufacturers are very concerned about. The internal structure and the electric shock inside the connector play an important role in improving signal integrity and minimizing insertion loss. In addition, the connector can enhance the signal interface by improving airflow and channel impedance.
3. EMI and ESD shielding of PCB connectors
At higher data rates, shielding from electromagnetic interference (EMI) and electrostatic discharge (ESD) is becoming more and more important. Physical envelopes and special installation and termination mechanisms play an important role in ensuring the prevention of EMI and ESD effects.
PCB
4. Cable terminal of PCB connector
This is the transition point where the cable is terminated with the connector, and it helps reduce signal loss. For example, some PCB connectors have pre-loaded springs to prevent accidental cable removal, and the connector integrates the wire termination unit and cable clamp into a plug housing.
5, the mechanical strength of the PCB connector

The flexible, sturdy and durable connector design means it can withstand cable tension, heat, shock, vibration and other external forces. The mechanical strength of the PCB connector also ensures correct mating and connection safety.




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