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This page provides the mechanical out-line and Mechanical Dimensions for all the different Plug Pin contact styles of Subminiature D connectors,
commonly called D-Sub connectors.

D-Subminiature Out-line

The graphic above gives the mechanical dimensions for a D-Subminiature connector.
D-Sub Connector manufacturers and Vendors.
Use the table below to obtain the absolute dimensions based on the shell size and number of pins used with the connector.

D-sub Shell Size and Plug Sizes

Refer to MIL-DTL-24308/9:
Hermetic Miniature Rectangular Polarized Shell, Rack and Panel, Plug, Pin Contacts Connectors

D-Sub Connector Insert Arrangements .

Shell size: DA, DB, DC, DD, and DE. {see below}
Standard (size 20 contacts): 9, 15, 25, 37, and 50 pins (IAW DIN 41 652,MIL-C-24308,IEC807). Also available as dual (mixed) stacked.
High Density 'HD' (size 22 contacts):15, 26, 44, 62, 78, and 104 pins
Power 3W3, 3WK3, 5W5, 8W8; 3, 5, 8 single row High Power Contacts

D-Sub Connector types: all shell sizes
Board Mount D-Sub Connectors:
...Right Angle D-Sub Connector
......Through-Hole D-Sub Connector
......Surface Mount D-Sub Connector SMT
......Dual Port Two connectors stacked together
...Straight D-Sub Connector: Solder
......Press-fit D-Sub Connector: Solderless
......Wire Wrap D-Sub Connector: Solder-less
Cable D-Sub Connectors:
...IDC D-Sub Connector; Discrete Wire
...IDC D-Sub Connector; Flat Ribbon Cable [Insulation Displacement D-Sub Connector Dimensions]
...Crimp Snap-in D-Sub Connector; Discrete Wire
...Solder Cup D-Sub Connector; Discrete Wire

D-Sub connector common usage in personal computers;
9-pin DE D-Sub connectors are used as an RS232 Serial port
15-pin DA D-Sub connectors are used as a Video port
25-pin DB D-Sub connectors are used as a parallel / printer port
Note that most people just use the term 'DB'; DB9, DB15, DB25.

D-Sub Connector Terms:
HD: High Density. Pack 3 rows of pins into the next smaller 2-row shell size, 15-pins into a 9 pin shell size
Filtered: Suppress electro-magnetic interference (EMI) or radio frequency (RFI)
IDC: Insulation Displacement Connection
IEC: (International Electrotechnical Commission) ~ International Standards Body
MIL: Military, as in Department of Defense Standard 'DOD'
MIL-C-24308: Connectors, Electrical, Rectangular, Miniature, Polarized Shell, Rack and Reel, Shield, Straight, Deep
MIL-DTL-24308; A sub-standard and replacement of MIL-C-24308. DTL stands for Detail Specification Sheet
RoHS: Restriction of Hazardous Substances
SMT: Surface Mount Technology
THR: Thru Hole Reflow, 'Pin in Paste'

17W2 Insert Placement

The graphic above is an example of a composite D-sub connector, called a 17W2.
Indicating 17 signal pins and 2 RF or power pins.
The connector takes the standard keystone shape of a Dsub connector.

D-Subminiature connectors are listed on the D-Sub Connector manufacturers page.
Military D-Sub Connector manufacturers, Mil-C-24308, and may also list companies which manufacturer Dsub connector styles.
Military Connector Specifications

Editor note; the original standard, MIL-C-24308, that defined the Dsub style connectors was canceled and superseded by MIL-DTL-24308.

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