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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.

Refer to MIL-DTL-24308/9H:
CONNECTORS, ELECTRIC, RECTANGULAR, MINIATURE, POLARIZED SHELL, RACK AND PANEL, PLUG, PIN CONTACTS, HERMETIC, CLASSES H AND K

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 Insert Arrangements .

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
Filtered: Suppress electro-magnetic interference (EMI) or radio frequency (RFI)
High Density, HD: Pack 3 rows of pins into the next smaller 2-row shell size, 15-pins into a 9 pin shell size
IDC: Insulation Displacement Connection
IEC: (International Electrotechnical Commission) ~ International Standards Body
MIL: Military, as in Department of Defense Standard 'DOD'
MIL-C-24308/20A: Connectors, Electrical, Rectangular, Miniature, Polarized Shell, Rack and Reel, Shield, Straight, Deep
MIL-DTL-24308; A sub-standard 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'

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

Electronic Engineering Key Words: Dsub, D-sub, D-Subminiature, Connector, DB9, DE9, DB15, DA15, Rectangular,
Coaxial, Manufacturers, 9-pin, 15-pin, 25-pin, Filtered, Vendors, miniature, Military, MIL Spec, miniature, Mini D-Sub.

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