Micro-D Plastic Shell - .050" Contact Spacing
Microminiature Rectangular Connectors
with MICRO-Pin Contacts on .050 (1.27)
centers.
MICRO-D microminiature rack/panel connec-
tors are used in applications requiring highly
reliable, extremely small, lightweight connec-
tors. These connectors are available in 2 insu-
lator materials, 2 mounting variations, 7 shell
sizes accommodating from 9 to 51 contacts
and a special arrangement of 5 micro contacts
and 2 coaxials. The insulator materials listed
give the MICRO-D connector wide versatility
in most applications required by industry.
ITT can also terminate a wide variety of
stranded or solid wire directly to MICRO-D
contacts, which is often desirable in high den-
sity arrangements.
MICRO-D connectors can also be custom har-
nessed to meet any customer requirement of
single or multiple connectors. Pigtail lead and
harness description must be given by the cus-
tomer. A typical description would be: .5" #25
AWG, gold plated copper leads or 18" of #26
yellow, Teflon-insulated, Type E wire. Shown
below are various methods of termination.
Consult customer service for any routine or
complex harnessing of MICRO-D connectors.
MD**
• Glass-filled diallyl phthalate thermoset
material used in high temperature applica-
tions that is immune to cleaning solvents.
It also has excellent dielectric properties.
Temperature range: -65˚F to +300˚F
(-55˚C to +149˚C).
• Glass-filled polyester thermoplastic that is
not affected by cleaning solvents and
exhibits excellent dielectric properties.
Temperature range: -55˚F to +257˚F
(-65˚C to +125˚C).
Specifications
MATERIALS AND FINISHES
Shell/Insulator (One Piece) MD/MDB: Glass-filled
thermoset plastic
MDV/MDVB:
Thermoplastic
Contacts
- Copper alloy, gold plate
Wire Size
Contact Termination
ELECTRICAL DATA
No of Contacts
- 9 to 51: (1 arrangement of 5
contacts and 2 coaxials - for
screw mount only)
- RG-178/U (Not available for
MD clip mount)
- #24 thru #32 AWG
- Multi-indent crimp
Coaxial Cable
MECHANICAL FEATURES
Size or Length
Coupling
Polarization
Contact Spacing
Centers
Shell Styles
- 7 sizes
- Friction/jackscrews
- Keystone-shaped shells
-.050 (1.27mm)
- Plug and receptacle
Consult factory for availabilty.
How to Order
PCB ordering information - page 30
RoHS COMPLIANCE
SERIES-INSULATOR STYLE-MATERIAL
CONTACT SPACING
CONTACT ARRANGEMENT
CONTACT TYPE
TERMINATION TYPE
TERMINATION CODE
LOCKING HARDWARE
SERIES-INSULATOR STYLE-MATERIAL
MDB - Screw mounting-Diallyl phthalate
MDVB - Screw mounting-Polyester
CONTACT SPACING
1 - .050 (1.27) centers
CONTACT ARRANGEMENT
9-15-21-25-31-37-51. See page 9
CONTACT TYPE
P - Pin
S - Socket
TERMINATION TYPE
H - Insulated solid or stranded wire
L - Uninsulated solid wire
S - Solder pot to accept #26 AWG max.
harness wire.
TERMINATION CODE
See page 79 and 81 for additional codes
(H) 001 - 18", 7/34 strand, #26 AWG,
MIL-W-16878/4, Type E Teflon, Yellow.
(H) 003 - 18", 7/34 strand, #26 AWG,
MIL-W-16878/4, Type E Teflon, color
coded to MIL-STD-681 System I.
(L) 1 - 1/2" uninsulated solid #25 AWG gold plated copper.
(L) 2 - 1" uninsulated solid #25 AWG gold plated copper.
LOCKING HARDWARE (SCREW MOUNTING ONLY)
P - Jackpost
K - Jackscrew-standard
L - Jackscrew-low profile
F - Float mount
M - Military specification hardware, see page 13.
No designator - No hardware - standard mounting
.091 (2.31) hole diameter
R
MD**
1-
9
P
H
001
P
Dimensions shown in inch (mm)
Specifications and dimensions subject to change
www.ittcannon.com
28
Micro-D Plastic Shell - .050" Contact Spacing
Standard Wire Termination Codes
MDB/MDVB
The following termination codes are listed for your information. For additional codes please refer to Appendix
on page 79 and 81.
All wire lengths are minimum.
Harness Type (H)
Solid Uninsulated Type (L)
#26 AWG per MIL-W-16878 Type E Teflon, stranded.
#25 AWG Gold Plated Copper
Length
3 (76.2)
6 (152.4)
8 (203.2)
10 (254.0)
12 (304.8)
18 (457.2)
20 (508.0)
24 (609.6)
30 (762.0)
36 (914.4)
48 (1219.2)
72 (1828.8)
120 (3048.0)
* Cavity #1 black
All Yellow
H020
H019
H026
H029
H028
H001
H038
H009
H010
H011
H013
H017
H042
Color Coded*
H027
H016
H034
H025
H002
H003
H023
H004
H005
H006
H048
H046
H041
Termination Code
L61
L56
L57
L39
L58
L1
L14
L2
L7
L6
L16
L10
Length
.125 (3.18)
.150 (3.81)
.190 (4.83)
.250 (6.35)
.375 (9.52)
.500 (12.70)
.750 (19.05)
1.000 (25.40)
1.500 (38.10)
2.000 (50.80)
2.500 (63.50)
3.000 (76.20)
With Screw Mounting Holes (Conforms to MIL-DTL-83513)
MDB
Glass-filled Diallyl Phthalate
Plastic Insulator
B
.304 (7.72)
MAX.
.395 (10.03)
MAX.
.204 (5.18)
MAX.
MDVB
Glass-filled Polyester
Plastic Insulator
.110
(2.79)
MAX.
D
TWO MTG. HOLES .091 ± .003
(2.31 ± 0.08)
F
R
C
.100 (2.54)
MAX.
Solder Pot
B
.285 (7.24)
MAX.
.375 (9.92)
MAX.
C
.100 (2.54)
MAX.
.185 (4.70)
MAX.
.200
(5.08)
MAX.
+
A
F
+
E
.154
(3.91)
MAX.
D
+
.200
(5.08)
MAX.
A
+
E
Solder Pot
Part Number by Shell Size
MDB1-9P**
MDVB1-9P**
MDB1-9S**
MDVB1-9S**
MDB1-15P**
MDVB1-15p**
MDB1-15S**
MDVB1-15S**
MDB1-21P**
MDVB1-21P**
MDB1-21S**
MDVB1-21S**
MDB1-25P**
MDVB1-25P**
MDB1-25S**
MDVB1-25S**
MDB1-31P**
MDVB1-31P**
MDB1-31S**
MDVB1-31S**
MDB1-37P**
MDVB1-37P**
MDB1-37S**
MDVB1-37S**
MDB1-51P**
MDVB1-51P**
MDB1-51S**
MDVB1-51S**
A
Max.
.788 (20.02)
.788 (20.02)
.938 (23.82)
.938 (23.82)
1.088 (27.64)
1.088 (27.64)
1.188 (30.18)
1.188 (30.18)
1.338 (33.98)
1.338 (33.98)
1.488 (37.80)
1.488 (37.80)
1.438 (36.52)
1.438 (36.52)
B
Max.
.292 (7.42)
.380 (9.65)
.442 (11.23)
.530 (13.46)
.592 (15.04)
.680 (17.27)
.692 (17.58)
.780 (19.81)
.842 (21.39)
.930 (23.62)
.992 (25.20)
1.080 (27.43)
.942 (23.93)
1.030 (26.16)
C
Max.
.408 (10.36)
.408 (10.36)
.588 (14.17)
.588 (14.17)
.708 (17.98)
.708 (17.98)
.808 (20.56)
.808 (20.56)
.958 (24.33)
.958 (24.33)
1.108 (28.14)
1.108 (28.14)
1.058 (26.87)
1.058 (26.87)
D
Max.
.173 (4.39)
.173 (4.39)
.173 (4.39)
.173 (4.39)
.173 (4.39)
.173 (4.39)
.173 (4.39)
.173 (4.39)
.173 (4.39)
.173 (4.39)
.173 (4.39)
.173 (4.39)
.220 (5.59)
.220 (5.59)
E
Max.
.218 (5.54)
.218 (5.54)
.218 (5.54)
.218 (5.54)
.218 (5.54)
.218 (5.54)
.218 (5.54)
.218 (5.54)
.218 (5.54)
.218 (5.54)
.218 (5.54)
.218 (5.54)
.260 (6.60)
.260 (6.60)
F
±.005
.565 (14.35)
.565 (14.35)
.715 (18.16)
.715 (18.16)
.865 (21.97)
.865 (21.97)
.965 (24.51)
.965 (24.51)
1.115 (28.32)
1.115 (38.32)
1.265 (32.13)
1.265 (32.13)
1.215 (30.86)
1.215 (30.86)
Avg.
Weight***
±5% (oz.)
±5% (gm.)
.026 (0.73)
.025 (0.70)
.038 (1.10)
.035 (1.00)
.053 (1.50)
.050 (1.40)
.063 (1.80)
.056 (1.60)
.080 (2.30)
.073 (2.10)
.086 (2.45)
.076 (2.15)
.109 (3.10)
.093 (2.64)
** Add lead type and length, see Part Number Explanation.
*** Weight given is with 1/2", uninsulated solid #25 AWG gold plated copper pigtails.
Dimensions shown in inch (mm)
Specifications and dimensions subject to change
www.ittcannon.com
29
Micro-D Plastic Shell - .050" Contact Spacing
MD*B-PCB connectors use standard MD*B all
plastic shells and are designed for use with
flex circuitry, printed circuit and multi-layer
boards. They are easily mounted and soldered
and provide high density/high reliability in
board-to-board and board-to-cable applica-
tions. While being similar to the MDM-PCB
connectors, the MD*B-PCB connectors are all
plastic, extremely small, and lightweight yet
rugged enough for use in the most demanding
applications.
MD*B-PCB connectors are available in
seven shell sizes with 9 to 51 contacts in the
popular 90° narrow profile PCB termination,
with a variety of tail lengths for varying board
thickness.
Jackpost mounting for use with locking hard-
ware is also available.
If the connectors shown in the catalog do
not meet the requirements of your applica-
tions, a special shape, size or layout using
the basic all plastic shell can be made avail-
able. For further technical and applications
information, contact customer service.
MD*B-PCB
How to Order
R
RoHS COMPLIANCE
SERIES
CONTACT ARRANGEMENT
CONTACT TYPE
TERMINATION TYPE
HARDWARE
TERMINATION TAIL LENGTH
MODIFICATION CODES
(Consult Factory)
C
CONNECTOR SERIES
M
MDVB, MDB
CONNECTOR ARRANGEMENT
9, 15, 21, 25, 31, 51
C
CONTACT TYPE
S = Socket
P = Pin
T
TERMINATION TYPE
CBR = 90° Narrow Profile PCB Terminations
H
HARDWARE
P = Jackpost
M7 = Jackposts, M635135-07
No Letter = Less Hardware
TERMINATION TAIL LENGTH CODES
NONE – .109 (2.77) ± 0.15 (0.38) Standard
L61
– .125 (3.18)
L66
– .150 (3.81)
L57
– .190 (4.83)
– .250 (6.35)
L39
L58
– .375 (9.52)
MD*B
- 37 S CBR * L39
-
***
T
Dimensions shown in inch (mm)
Specifications and dimensions subject to change
www.ittcannon.com
30
Micro-D Plastic Shell - .050" Contact Spacing
CBR Series (90˚ Mounting Narrow Profile)
LAST
CAV
.109 + .015
_
_
(3.77 + 0.38)
+
MD*B-PCB
A
C
+
JACKPOST 2-56 UNC-2B
TYP.
E
D
B
CAV.
#1
G
F
H
.186 (4.72) PLUG
.199 (5.05) RECEPTACLE
*
* FOR 31: 1.085 (27.56) MAX.
FOR 37: 1.185 (30.10) MAX.
FOR 51: 1.225 (31.12) MAX.
F
G
H
9-15-21-25 VIEW
_
.096 + .005
(2.44 + 0.31) DIA. TYP
_
PCB Termination Arrangements (Viewed from bottom of connector, on PCB solder side.)
Indentification number shown for plug connector, use reverse order for socket connector.
.083
(2.11)
5
4
2
1
15
9
8
3
7
6
.108
(2.73)
7
8
14
6
5
.100 (2.54)
TYP.
4
12
13
11
3
10
2
1
9
.020
(0.51)
.083
(2.11)
11
21
.083 (2.11)
10
9
20
19
8
7
18
6
17
16
5
4
3
14
15
13
2
1
12
.020
(0.51)
12
13
25
11
24
10
22
9
8
7
6
5
19
4
17
18
3
15
16
2
1
14
23
21 20
9 Contacts
.020
(0.51)
.050 (1.27)
TYP.
.020
(0.51)
21 Contacts
25 Contacts
15 Contacts
17
15
16
13
14
11
12
10
27
9
43
45
44
42
8
7
41
26
40
6
5
25
4
3
23
24
38
22
2
1
21 19
20
36
.158 (4.00)
15
16
30
14
29
31
28
13
12
27
11
10
25
26
9
24
23
22
8
7
21
20
6
5
19
18
4
3
17
2
1
19
18
17
16
35
34
18
15
.183
(4.65)
13
14
33
32
12
31
30
35
11
10
29
9
8
28
27
26
25
7
6
5
4
24
23
3
2
22
21
20
1
34
33
32
31
30
29 46
28
47
51 50
49
48
39
37
.050
(1.27)
.108
(2.73)
.020
(0.51)
37
31 Contacts
.020
(0.51)
36
51 Contacts
37 Contacts
All Termination Configurations .100 (2.54) x .100 (2.54) Grid Pattern, Offset .050 (1.27)
Part Number
By Shell Size
MD*B-9PCBR*
MD*B-9SCBR*
MD*B-15PCBR*
MD*B-15SCBR*
MD*B-21PCBR*
MD*B-21SCBR*
MD*B-25PCBR*
MD*B-25SCBR*
MD*B-31PCBR*
MD*B-31SCBR*
MD*B-37PCBR*
MD*B-37SCBR
MD*B-51PCBR*
MD*B-51SCBR
A
Max.
.788 (20.01)
.788 (20.01)
.938 (23.82)
.938 (23.82)
1.088 (27.63)
1.088 (27.63)
1.188 (30.17)
1.188 (30.17)
1.338 (33.98)
1.338 (33.98)
1.488 (37.79)
1.488 (37.79)
1.438 (36.52)
1.438 (36.52)
B
± .005 (0.13)
.565 (14.35)
.565 (14.35)
.715 (18.16)
.715 (18.16)
.865 (21.97)
.865 (21.97)
.965 (24.51)
.965 (24.51)
1.115 (28.32)
1.115 (28.32)
1.265 (32.13)
1.265 (32.13)
1.215 (30.86)
1.215 (30.86)
C
Max.
.292 (7.42)
.375 (9.52)
.442 (11.23)
.525 (13.34)
.592 (15.04)
.675 (17.14)
.692 (17.58)
.775 (19.68)
.842 (21.39)
.925 (23.50)
.994 (25.25)
1.075 (27.30)
.942 (23.93)
1.026 (26.06)
D
Max.
.218 (5.54)
.218 (5.54)
.218 (5.54)
.218 (5.54)
.218 (5.54)
.218 (5.54)
.218 (5.54)
.218 (5.54)
.218 (5.54)
.218 (5.54)
.218 (5.54)
.218 (5.54)
.258 (6.55)
.258 (6.55)
E
Max.
.134 (3.40)
.218 (5.54)
.134 (3.40)
.218 (5.54)
.134 (3.40)
.218 (5.54)
.134 (3.40)
.218 (5.54)
.134 (3.40)
.218 (5.54)
.134 (3.40)
.218 (5.54)
.177 (4.50)
.258 (6.55)
F
Max.
.420 (10.67)
.420 (10.67)
.420 (10.67)
.420 (10.67)
.420 (10.67)
.420 (10.67)
.420 (10.67)
.420 (10.67)
.420 (10.67)
.420 (10.67)
.520 (13.21)
.520 (13.21)
.550 (13.97)
.550 (13.97)
G
± .010 (0.25)
.250 (6.35)
.250 (6.35)
.250 (6.35)
.250 (6.35)
.250 (6.35)
.250 (6.35)
.250 (6.35)
.250 (6.35)
.250 (6.35)
.250 (6.35)
.250 (6.35)
.250 (6.35)
.300 (7.62)
.300 (7.62)
H
± .010 (0.25)
.230 (5.84)
.230 (5.84)
.130 (3.30)
.130 (3.30)
.130 (3.30)
.130 (3.30)
.130 (3.30)
.130 (3.30)
.130 (3.30)
.130 (3.30)
.130 (3.30)
.130 (3.30)
.150 (3.81)
.150 (3.81)
* For jackpost locking add letter "P" or "M7".
NOTE: Standard lead termination is #24 AWG, solid copper, solder or tin dipped.
Dimensions shown in inch (mm)
Specifications and dimensions subject to change
www.ittcannon.com
31
Micro-D Plastic Shell - .050" Contact Spacing
MDB Coaxial Series with Screw Mounting Holes
MDB connectors with two coaxial and five MICRO-
PIN
TM
/MICROSOCKET
TM
contacts. Crimp-type coaxial
contacts accommodate RG-178/U cables. A plastic
insertion/extraction tool is supplied with each connec-
tor assembly having removable coaxial assembly.
MDB Coaxial
How to Order - MDB Coaxial
R
RoHS COMPLIANCE
SERIES
SIGNAL CONTACT SPACING
TOTAL CONTACT CAVITIES
NUMBER OF COAXIALS
COAXIAL TYPE
SIGNAL CONTACT TYPE
SIGNAL CONTACT LEAD TYPE
SIGNAL CONTACT LEAD LENGTH
MODIFICATION
HARDWARE
SERIES
Micro-D Coaxial
SIGNAL CONTACT SPACING
1 - .050 (1.27) centers
TOTAL CONTACT CAVITIES
. . . . . . . . . . . . . . . . . .7
.
NUMBER OF COAXIALS
. . . . . . . . . . . . . . . . . . . . .
2
SIGNAL CONTACT TYPE
P - Pin
S - Socket
SIGNAL CONTACT LEAD TYPE
L - Uninsulated, solid wire
H - Insulated, solid or stranded
S -Solder pot*
COAXIAL TYPE
No Letter - Coaxial assembly
installed and nonremovable
RO - coaxial assembly ordered
serparately
RA - Coaxial shipped assembled
but uninstalled
SIGNAL CONTACT LEAD LENGTH
See Standard Wire Termination
Code on page 29. Coaxial cable will be
RG-178U unless otherwise specified; length
will be same as wire modification.
MODIFICATION
Consult customer service
HARDWARE
No letter - No hardware
standard mounting. 091 (2.31) hole diameter
F - Float
K - Jackscrew (standard)
L - Jackscrew (low profile)
P - Jackpost
* Not available with removalbe coax cable type
connectors RO and RA.
MDB
1
-7
C2
*
S
H
**
*
K
How to Order - Coaxial Cable Assemblies
R
RoHS COMPLIANCE
SERIES
COAXIAL CABLE
CONTACT TYPE
COAXIAL CABLE TYPE
SERIES
MD
COAXIAL CABLE
CC
COAXIAL CABLE LENGTH
CONTACT TYPE
P - Pin
(used with socket side connection)
S - Socket
(used with pin type connection)
COAXIAL CABLE TYPE
1 - RG178/U
Dimensions shown in inch (mm)
COAXIAL CABLE LENGTH
See Standard Wire Termination
Codes on page 29. Coaxial cable will be
RG-178U unless otherwise specified; length
will be the same as wire modfication.
MD
CC
S
*
***
www.ittcannon.com
32
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