Dsub Connector assembly

Mechanical Components

D-Sub IDC Connector Dimensions

This page provides the mechanical out-line and Mechanical Dimensions for all the different styles of
Insulation Displacement Subminiature D connectors, commonly called D-Sub connectors. Insulation Displacement Definition [IDC].
This is the cable side of a cable assembly and not the board or PWB side of an interface.

D-Subminiature Out-line
D-Subminiature Connector
IDC Dsub Physical Size

An IDC connector is used with either a Flat cable or ribbon cable.

The graphic above gives the mechanical dimensions for a Insulation Displacement D-Subminiature connector. D-Sub Connector manufacturers
Use the table below to obtain the absolute dimensions based on the size and number of pins used with the connector. Note the Number of contacts allowed; 9-pin, 15-pin, 25-pin, and 37-pins.

Insulation Displacement D-Subminiature Connector Size
IDC Dsub Dimensions

DOD Reference Documents [Revisions omitted]
Connectors, Electric, Rectangular, Non-environmental, Miniature, Polarized Shell, Rack and Panel, Insulation Displacement, Pin Contacts , Class G
Connectors, Electric, Rectangular, Non-environmental, Miniature, Polarized Shell, Rack and Panel, Insulation Displacement, Socket Contacts

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 [not available in an IDC version]
Power 3W3, 3WK3, 5W5, 8W8; 3, 5, 8 single row High Power Contacts [not available in an IDC version]

D-Sub Connector Insert Arrangements

D-Sub Connector types: all shell sizes

Cable D-Sub Connectors:
...IDC D-Sub Connector; Discrete Wire
...IDC D-Sub Connector; Flat Ribbon Cable
...Crimp Snap-in D-Sub Connector; Discrete Wire [Reference only]
...Solder Cup D-Sub Connector; Discrete Wire [Reference only]
----- Listed for Reference only -----
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

Possible DSub Shell Sizes
Standard Density High Density
DA Shell 15 position HD DA Shell 26 position
DB Shell 25 position HD DB Shell 44 position
DC Shell 37 position HD DC Shell 62 position
DD Shell 50 position HD DD Shell --
DE Shell 9 position HD DE Shell 15 position

D-Sub connector common usage in personal computers;
None, IDC connectors are normally not found in commercial usage
Molded cable assemblies are preferred. However there are two interfaces that use Ribbon cable;
Both are hard drive cables: IDE Interface, and SCSI Interface.

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 [IDC Definition]
MIL: Military, as in Department of Defense Standard 'DOD'
MIL-C-24308/20: 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

D-sub connector vendors:
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

PC motherboard

Distributor rolodex Electronic Components Electronic Equipment EDA CDROM Software Engineering Standards, BOB card Cabled Computer Bus Electronic Engineering Design Table Conversion DB9-to-DB25.
DistributorsComponents Equipment Software Standards Buses Design Reference

Modified 6/13/15
Copyright © 1998 - 2016 All rights reserved Larry Davis