Board-to-Board Connector Testing and Troubleshooting

Testing and inspection of board-to-board connectors 1) Note that the load voltage on the board-to-board connector should not exceed 50% of its rated voltage. 2) The installation dimension of the board-to-board connector used to insert the joint, the length of the soldering pin on the welding PCB should be greater than 0.5 mm 3) For board-to-board connectors with higher precision, try to choose a model with positioning pins when PCB space permits to facilitate the operation when manual welding is required. 4) Check whether there is a fool-proof design. 5) Check the material used for board-to-board connectors for lead. 6) Small board-to-board connectors with low contact pressure are used in low current and low voltage situations. It is recommended to use gold-plated or silver-plated connectors to avoid affecting signals caused by film resistance. 7) Pay attention to whether the height of the board-to-board connector after butting conforms to the welding height of the components around the PCB. The assembly height must be greater than the soldering height of the components around the PCB, and there must be a certain margin to ensure non-interference. In particular, height errors of components may occur after PCB welding.

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Board-to-board connection problems and common troubleshooting Correctly connecting board-to-board connector products can prolong the service life of products and ensure the good operation of mechanical equipment. The failure of plate products and untimely treatment will bring immeasurable economic losses. The following briefly introduces the connection and troubleshooting methods of the board-to-board connector circuit. 1) Connection Issues of Board-to-Board Connectors A board-to-board plug receptacle for electrically connecting two separate circuit boards includes a first connector in conductive contact with the circuit board and an adapter connector for connecting the first connectors in series, wherein the first connector has a first terminal in conductive contact with the circuit board and a body containing the first terminal. The adapter has a second terminal and a body for accommodating the second terminal, two extending ends of the second terminal can be plugged and matched with the first terminal respectively to realize electrical conduction with the first connector respectively arranged on the two circuit boards, wherein the end of one of the first terminal and the second terminal has an elastic part bending in the reverse direction, and the extending length of the body and the second terminal can be selected according to the pitch setting standard of the circuit boards. 2) Board-to-board connector troubleshooting Once the product fails, it can be judged that the reason is that the wire is broken during use and the product is loose. The frequency of middle discontinuous lines is not much, mostly at the joints. Therefore, the focus of inspection should be on the sensor and the wires at the connection to see if there are any problems such as looseness and poor contact. Generally, open circuit failures caused by poor contact are mostly due to corrosion at the product end, and external dirt enters the terminal or connection socket, resulting in a decrease in contact pressure. To deal with this kind of fault, you need to remove the connector first, then plug it back in, change its connection state, and restore normal contact.

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