DEMM-9S-D

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D-Sub Connectors are one of the most widely used interconnections in the world of electronics, especially in industrial applications. The most popular type of D-Sub Connectors is the DEMM-9S-D, used for connecting audio and video cables. This type of connector has been around for decades and continues to be a reliable and efficient way to connect systems together.

A DEMM-9S-D Connector is composed of four pins, each providing a connection to one side of the circuit board. Each of these pins are housed in a metal shell and have a specific depth, shape and contact diameter which all must match to ensure proper compatibility. The metal shell also acts as an insulator, preventing electrical connections between the pins and the board.

The most common application for the DEMM-9S-D is in audio/video electronics, such as in audio systems and TVs. These connectors are used to connect the audio and video cables to the circuit board, allowing for the transmission of signals from the source to the destination. This type of connector is also frequently used in the automotive industry for connecting various accessories to a car’s electrical circuit.

The working principle behind the DEMM-9S-D Connector is fairly simple. Each pin has a specific depth, shape and contact diameter, and when the pins are connected together, they form an electrical connection. This connection forms the path for the electric circuit to transmit signals from one device to another.

In order to create a reliable connection, a certain amount of force must be applied to the connector to make sure it is securely attached. This is referred to as the “contact closure force”, and it must be properly adjusted for the type of application the connector is intended for. If the contact closure force is too low, then the connection will be unreliable, while if it is too high, then the connector may become damaged.

DEMM-9S-D Connectors are highly reliable and have been used for decades. They are almost exclusively used for audio/video applications and are known for their ability to handle high-frequency signals. In addition, these connectors are often used in automotive applications because they provide a reliable, low-cost option for connecting accessories to the car’s electrical circuit.

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