It is very important for users to choose and purchase board connector products correctly. So, how to select the board to board connector and what is the purchasing standard? In recent years, board to board connectors are moving towards a smaller trend. The most common board to board connector spacing of handheld consumer electronic devices is 0.40mm; the stacking height of 1.00mm is a small connector. Recently, the connectors used by major original equipment manufacturers for electronic pin are as low as 0.70mm, sometimes even lower. A few years ago, the old micro connector with a width of more than 4.00mm was replaced by the connector with a width of 3.40mm. At present, the concept of "narrow body" plate to plate is usually in the range of 2.40 to 2.60mm. Is the smaller the plate to plate product, the better? When purchasing board to board connectors, in addition to the basic issues such as circuit size, stack height and width, there are several things to consider:

Really, the smaller the better? If you are willing to accept a smaller vacuum port pickup area, it may be right. Before choosing a subminiature connector, you should check that the connector has all the other properties you need and test it carefully to make sure it is robust enough. Then, it seems necessary to choose a socket with a top mounted connector, because this arrangement of headphone pin can run tracking under the socket, and it may be convenient to use conformal coating. Some disadvantages of the top mounted socket are that the width of the vacuum pick-up area is often narrow, there is no plastic shell material above the socket terminal to prevent the rise caused by rough disconnection action, and the uneven top surface of the socket may bring trouble to the operator's connection operation. These new connectors with stronger disconnection force sound great! Yes, but for square pins, you may need to tolerate additional connector lengths to achieve the locking function required by these connectors; greater breaking strength usually means greater bonding strength, which may also lead to problems with larger size circuits.