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DSUB Connectors


A D-sub connector, or D-subminiature connector, is a compact, pin-and-socket electrical/video connector that is specially designed for high-density packages. These devices are named for the D-shaped metal shield that surrounds and protects the pins and sockets; “subminiature” refers to the fact that D-sub connectors were some of the smallest computer connection components available when they were first introduced.


What Is A D-Subminiature Connector?

A typical D-sub connector consists of a male plug with two or more parallel rows of pins and/or sockets, which are surrounded by a capital D-shaped metal ring. In addition to protecting the delicate components, the D shield helps ensure correct orientation during installation and provides mechanical support; some D shields also provide EMI/RFI protection.

There are countless D-subminiature connector variations, with varying pin counts and configurations. Common D-sub connector options range from DE-9 (which has nine pins arranged in two rows) to the DD-50 (with 50 pins arranged in three rows). Hybrid styles may feature a combination of both standard pins and other connection components, such as coaxial connectors. For installation versatility, D-sub connectors are available in cable mount and board mount styles, among others.

Contact PUI for Top Quality D-Sub Connectors

PUI is a leading distributor of Kycon D-subminiature connectors. We offer a range of styles and configurations to meet your unique needs. See individual product listings for additional information and specifications.
Kycon D-Sub Connector Options

  • Available in straight panel mount, right angle panel mount, cable mount and board mount (PCB) styles

  • Panel mount D-subminiature connectors are available in 9, 15, 25, and 37 pin configurations

  • Solder cup construction

  • Stackable for panel mount applications

Applications for D-Subminiature Connectors

Perhaps the most common use for D-sub connectors is as a video connector for computer monitors. Other common applications include:
  • Communications ports (RS-232 serial connections)
  • Computer network ports
  • Game controller ports
  • SCSI connectors
  • Rotary and linear encoders
  • Computer peripheral connections
  • Parallel digital video and serial digital video
  • and more
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