Combination (or Hybrid) D-Subminiature connectors are made to standard d-sub sizes.  For the most part, standard d-sub backshells will fit a Combo-D.  ITT Cannon and Amphenol both have tables in their catalogs that give the shell sizes for the more popular layouts.  The table below is a condensed version.  For full details please refer to the connector manufacture's documentation. Approximate equivelant collumn refrences standard size d-sub connectors (not high density types).  Links to ITT's and Amphenol's D-Sub catalogs are below.

 

 

D-Sub Shell size code

Approximate

Arangment

ITT code

Amphenol code

Equivelant

2W2

DE

9 Pin

5W1

DE

E

9 Pin

3W3

DA

A

15 Pin

7W2

DA

A

15 Pin

11W1

DA

A

15 Pin

5W5

DB

B

25 Pin

9W4

DB

B

25 Pin

13W3

DB

B

25 Pin

17W2

DB

B

25 Pin

21W1

DB

B

25 Pin

8W8

DC

C

37 Pin

13W6

DC

C

37 Pin

17W5

DC

C

37 Pin

21W4

DC

C

37 Pin

25W3

DC

C

37 Pin

27W2

DC

C

37 Pin

24W7

DD

D

50 Pin

36W4

DD

D

50 Pin

43W2

DD

D

50 Pin

47W1

DD

50 Pin

 

 

 

 

 

ITT Cannon: Combo D section , D-SUB Full Line (4.3Mb and 9.75Mb respectively)

 

 

 

Amphenol: D-Sub full catalog  (40Mb download)