What is a Contact and Its Materials?
What is a Contact and its Materials?
Contacts are metal parts that allow connectors to have contact and energizing functions. A metal plate is pressed using a mold and then sheared and bent to form a shape. The parts are then plated to complete the contact. It is like cutting out the dough of a stretched cookie and pouring chocolate over it.
Types of Metal Used in Contacts
Copper alloys with low electrical resistivity are used as the metal material in contact.
Despite its good electrical characteristics, copper has mechanical weaknesses, such as very low tensile strength and softness, so we use a copper alloy with excellent spring characteristics for contacts where contact stability is important.
Use the following materials according to the specifications required for the connector.
Types of Plating Used for Contacts
The contact area is plated to prevent oxidation and corrosion of the contact area, to retain electrical characteristics, and to make it easier for customers to solder the connection area.
●Keywords●
What is plating?
The application of a thin film of metal to the surface of a metal or non-metal material.
Use the following materials according to the specifications required for the connector.
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Connector Structure and Part Names
Here is a case of an FPC connector to illustrate its composition. A connector mainly consists of an actuator, metal fitting, contact, and insulator. See below for each application and material.
What is an Insulator, and From What Materials is it Made?
An insulator is a component that forms the entire connector and protects the contacts (wires). It is mainly made of resin and placed in a special mold just like melting chocolate and putting it in a mold to make a shape.
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