連接器的教程

　　連接器可能不是電路中最復雜的部分，但它們無疑是最重要的部件之一。電路可以用幾種不同的方式來考慮。大多數工程師可能看到電路的第一種方法是理論方面，可以在紙上表示。雖然這很重要，當然沒有一個電路在沒有經過深思熟慮的情況下也能正常工作，但這不是整個畫面。電路是指進入一個設備或產品，是為了執行某種功能。通常這些產品可能非常大，像飛機或火車，當然不能安裝在大型電路板上，它們可能根本就沒有電路板。因此，連接器被認為是連接不一定在同一物理板上的電路的快速有效的方法，它們是通往電子公路的旁路。

　　市場上有幾種不同類型的連接器，所有這些都服務于同一目的，但以不同的方式實現。有些是用來在汽車應用中，振動是一個問題，而另一些是要在外面的一個靜態的，但風化的環境，名單永遠不會結束。連接器有助于縮短制造時間，工人焊接幾個連接所需的時間要比將一個連接器插入另一個連接器的時間長得多。希望這篇文章能對一般的連接器有所啟發，以及在某個應用程序中應該使用哪個連接器。

　　Rectangular connectors

　　The term “rectangular connector” refers to the shape of the actual connector. It means that this connector housing will be rectangular in shape. These are often found on PCB boards because they are easy to use for manufacturing. A board will typically have either a through hole or surface-mounted male header that a female socket can fit onto， this is a good way to connect wires to a board. The female connector would have sockets with wires crimped onto them which would be connected to something else. An example of this would be the B2B-XH-A（LF）（SN）， which is the male header， and the XHP-2， which is the female housing that would mate with the header. These products are from JST Sales America Inc. and will not work as-is. The XHP-2 is only a plastic housing， there are no sockets inside of this connector， so there are also no wires coming out of this connector. The sockets are proprietary accessories that are specific to the housing. While several contacts are very similar， it is always recommended to use the proper contacts that are made for the particular connector housing to ensure the connector will work. On the Digi-Key page for XHP-2 there is a section towards the bottom of the page that shows the sockets as an “Associated Product” （Figure 1）.