D-Sub Housings

D-Sub or D-Shaped Connectors are a type of electrical connector characterized by their distinctive D-shaped metal shield, which provides EMI/RFI shielding. These connectors are widely used in various applications due to their durability and versatility.

Definition:
D-Sub connectors, also known as DE-9, DA-15, or DB-25, are part of the D-Subminiature family of connectors. They are named for their D-shaped metal shell, which helps to ensure a secure connection and provides protection against electromagnetic interference.

Function:
The primary function of D-Sub connectors is to establish a reliable electrical connection between two devices. They are designed to transmit signals or power between a computer and peripheral devices, such as monitors, keyboards, or mice. The metal shield helps to reduce noise and signal degradation, ensuring a stable connection.

Applications:
D-Sub connectors are used in a variety of applications, including:
1. Computer Peripherals: They are commonly found on VGA cables for connecting monitors to computers.
2. Telecommunications: Used for connecting modems and other communication devices.
3. Industrial Control Systems: Employed in machinery and equipment for signal and power transmission.
4. Audio/Video Equipment: Found in some older audio and video cables for connecting devices like speakers and projectors.

Selection Criteria:
When choosing D-Sub connectors, consider the following factors:
1. Pin Configuration: The number of pins (e.g., 9-pin, 15-pin, 25-pin) determines the data or power capacity of the connector.
2. Gender: Connectors can be male or female, with male connectors having pins and female connectors having sockets.
3. Shielding: The quality of the metal shield can affect the level of EMI/RFI protection provided.
4. Material: The connector's material should be durable and resistant to environmental factors such as heat and humidity.
5. Compatibility: Ensure the connector is compatible with the devices it will be used with.
6. Reliability: Look for connectors with a proven track record of reliability and durability.

In summary, D-Sub connectors are essential for establishing secure and reliable connections in various electronic devices. Their design, including the D-shaped shield, contributes to their effectiveness in reducing interference and ensuring signal integrity. When selecting D-Sub connectors, it's important to consider the specific requirements of the application, including pin configuration, gender, shielding, material, compatibility, and reliability.
Please refer to the product rule book for details.