IEC 60807 3 9 Pin D Shell Connector IP69K Field Wireable Soldering Termination

Types of D-sub Connectors

We can differentiate D-sub connectors using several factors:

• Number of pins or jacks. Letters A through E and their corresponding numbers indicate the number of contacts in the shell of each connector’s plug or socket. For example, the smallest common type of D-sub is the DE-9 (also DB-9), made up of a plug with nine pins matched to a socket with nine jacks. Some D-subs have “HD” added to their names, which indicates that they are high-density. HD D-subs feature a closer arrangement of pins and jacks within the shell.
• Connection Methods. D-sub connectors vary in how they connect the contacts and the system circuitry. One of D-subs’ advantages is that they are well-suited for locking technology. Locking technology means that hardware keeps the plug and socket components in the mated position – usually by way of screws inserted into threaded holes attached to the metal shell of each part. Locked D-sub ports are more resistant to tampering and jostling than USB ports, HDMI, or Thunderbolts.
• Connection Duration. D-sub ports also offer a range of connecting styles for other uses, such as crimping (easiest for temporary and at-home connections) and soldering (for more permanent connections).

Another subtype of D-sub connector is an ITT trademark called the microminiature-D or “micro-D.” Micro-D connectors are even smaller than standard D-subs, and you can find them in use almost exclusively for space-grade