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Relay is an old and traditional electronical component.There are many kinds of relays, such as geneneral power relay, automative relay, signal relay, latching relay , reed relay and many others types. And in Wiki, there are some relays that are specail used in some field, and relays are classified by other element like size, working current and so on.

We can see relays when we open the inner structure of refrigerator,washing machine, and they are also widely used in many other applications like automative field, industrial, ocean, aether ……


About history of relay, the first Electromagnet was made by Surgeon in 1824, and in 1829 Joseph Henry made the first relay, and relay aslo evolved as time passed by. Though simple as it is , it has somewhat complex constructure within it. And you can check above picture, it is the demonstration of inner constructure of TE relay–PCN, from which you can get an idea about how it made.

That’s the simple introduction of relay, and we can talk more about relay and our service via email or call~~