There are many types of connectors. Common types include communication interface terminals, wiring terminals, wire-to-board connectors, and board-to-board connectors. Each category can be subdivided into several categories, such as: board-to-board connections including pin headers, female headers, board-to-board connectors, etc.;wire-to-board connectors include FPC connectors, IDC sockets, simple horns, etc. So when choosing board-to-board connectors, what aspects should we consider? How to choose a suitable connector for hardware? What this article wants to introduce to you is that when we choose the board-to-board connector, we should pay attention to those aspects, hoping to help everyone after reading this article!
The article contains the following:
1) The introduction of wire to board connector
2) Tips of choosing right wire-to-board connectors
3) Precautions
4) Conclusion
Introduction
The board-to-board connector is used to electrically connect two circuit boards separated from each other, and includes a first connector that is guided to the circuit board and an adapter connector used to serially connect the first connector, wherein the first connection The device is provided with a first terminal connected to the circuit board and a body accommodating the first terminal.
Tips
1.Pins and pitch
The number of pins and pin spacing are the basic basis for connector selection. The number of pins selected depends on the number of signals to be connected. The smaller the lead pitch, the higher the production process requirements. Pin pitch should be determined by the company's production technology level, blindly pursuing small pitch.
2. Electrical performance
When connecting a high-power power supply, pay attention to the limit current of the connector; when transmitting high-frequency signals such as LVDS, PCIe, etc., pay attention to the contact resistance.
3. Environmental performance
Choose according to the specific application environment. If the application environment is relatively humid, the requirements on the connector's resistance to humidity and salt spray are high to avoid corrosion of the metal contacts of the connector.
4. Mechanical properties.
The mechanical properties of the connector include pull-out force, mechanical foolproof, etc. Mechanical foolproofing is very important to the connector. Once inserted reversely, it may cause irreversible damage to the circuit!
Precautions
1.Observe that the voltage loaded on the board-to-board connector does not exceed 50% of its rated voltage.
2. Mounting dimensions of the board connector For plug-in headers, the length of the soldering feet soldered to the PCB requires that the part that exposes the PCB is greater than 0.5mm.
3. For the board-to-board connectors with higher precision, use the model with positioning pins as much as possible when the PCB space allows, so as to facilitate the operation when manual soldering is required.
4. Is there a foolproof design?
5. Whether the materials used contain lead.
Conclusion
The competition in the connector electronic component market is fierce. From the earliest fpc connectors to the board-to-board connector specifications and models now withdrawn, it seems that the demand for connectors in the field is still quite large, so facing various types of For the selection of such wire-to-board connectors, we should pay more attention and considerations and purchase suitable wire-to-board connectors.
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