What is D-SUB connector and what are the main types of D-SUB connector functions and features characteristics electrical performance parameters?

D-SUB connectors are a common type of electronic connector, usually used in computers, communication equipment, industrial automation and military equipment. It gets its name from its shape resembling the letter "D" and usually consists of two or more pins arranged in a row. This connector is widely used in electronic equipment and is one of the important components for transmitting signals and power in many devices.
There are several types of D-SUB connectors as follows
1.D-SUB 9 connector: It consists of 9 pins and is usually used for devices such as RS-232 serial communication interface, MIDI music devices, game controllers and modems.
2. D-SUB 15 connector: consists of 15 pins, usually used for devices such as VGA monitors and video controllers.
3. D-SUB 25 connector: consists of 25 pins, usually used for SCSI hard disk, printers and industrial automation equipment, etc.
The main features and characteristics of D-SUB connectors are as follows:
1.Reliability: D-SUB connectors have excellent reliability and are suitable for various application environments.
2. Versatility: D-SUB connectors can transmit multiple types of signals, including digital signals, analog signals and power supplies.
3. High density: D-SUB connectors can connect multiple pins in a small space, thus enabling high density connections.
4. Simple and reliable: D-SUB connectors are very popular because of their simple structure and easy installation and maintenance.
5. Anti-interference: D-SUB connectors have good anti-interference performance and can work in harsh environments.
Electrical performance parameters of D-SUB connectors include:
1. Number of pins: The number of pins of D-SUB connectors can range from 9 to 100, which can be selected according to specific application requirements.
2. Contact impedance: The contact impedance of D-SUB connectors is generally 50 Ohm or 75 Ohm, which can be adapted to different signal transmission requirements.
3. Maximum current: The maximum current of D-SUB connectors can range from 1 to 40 amps, which can be selected according to the specific application requirements.
4. Maximum voltage: The maximum voltage of D-SUB connectors is generally within 250 volts, which can be adapted to different power transmission requirements.
5. Operating temperature range: The operating temperature range of D-SUB connectors is generally between -55°C to 125°C.

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