The Micro Line - .050" Contact Spacing
The Cannon MICRO Series established the stan-
dards for performance and reliability in mircominia-
ture interconnects. Exceptionally versatile, MICRO
connectors are available in rectangular, circular, and
strip configurations, with 3 amp MICROPIN™/
MICROSOCkET™ contacts on .050(1.27) centers,
or with special arrangements of power and coaxial
contacts.
The heart of the Cannon MICROPIN/MICROSOCK-
ET contact system is a multi-element Twist Pin
Contact recessed with and insulating housing. The
rugged, cylindrical sockets are mounted in the
exposed half of the connector. When connector
halves are mated, the chamfered sockets are first
aligned by the connector body, then guide the spiral
MICROPIN contacts into proper and positive align-
ment, even under worst-case tolerance conditions.
This is Cannon's POS-A-LINE connectors design.
The multiple spring elements of the MICROPIN,
then under compression, form a multi-point contact
system of high mechanical and electrical integrity.
Contacts will provide a high degree of reliability
over hundreds of mating and unmating cycles, and
have proven themselves in applications that range
from commercial products to equipment that has
been landed on the moon.
• Contact rating - 3 amps max.
• Contacts centers - .050(1.27).
• Wire sizes - #24 thru #32 AWG, stranded or
solid.
• Contact termination - multiple indent crimp.
• Contact retention -fixed via epoxy.
• Contact materials and finish - Copper alloy,
gold-plated per MIL-G-45204, Type II, Grade C,
Class 1 over copper flash.
• Mating/unmating force - 8 oz. per contact,
max./0.5 oz. per contact min.
Test Data
The table below summarizes the results of key tests
performed in accordance with MIL-STD-1344,
where applicable. Data is applicable to standard
Test
Dielectric Withstanding
Voltage
Method
Method 3001:
900 VAC at sea level
300 VAC at 70,00' altitude
Solder Pots and Shielded
Cable 600 VAC at sea level
150 VAC at 70,000' altitude
Method 3003
Method 1003. Condition A:
- 55˚C to +125˚C
Method 2004, Condition E:
50 G's, 3 axes, 6 millisecond
duration sawtooth pulse
Method 2005, Condition IV:
20 G's, 10-2,000 Hz. 12 hrs
500 cycles of mating and
unmating, 500 CPH max.
Method 1002, Type II omit steps 7a & 7B
Method 1001, Condition B:
48 hours
Method 307
At 3 amps
At 1 milliamps
Per MIL-C-83513
connectors with standard termination. Variations
may affect this data, so please consult the factory
for further information on your requirements.
Criteria of Acceptance
No breakdown
No breakdown
No breakdown
No breakdown
5,000 megohms minimum
No physical damage
No physical damage
No loss of continuity > 1
µsec
No physical damage
No loss of continuity > 1
µsec
No mechanical or electrical defects
Insulation resistance > 100 megohms
Shall be cable of mating and unmating,
and meet contact resistance requirements
8 milliohms maximum
10 milliohms maximum
5 lb. minimum axial load
Insulation Resistance
Thermal Shock
Physical Shock
Vibration
Durability
Moisture Resistance
Salt Spray
Contact Resistance
(MIL-STD-202)
Contact Retention
Dimensions are shown in inches (millimeters).
Dimensions subject to change.
www.ittcannon.com
231
Micro-D Metal Shell - .050" Contact Spacing
MDM connectors are used in applications requiring
highly reliable, extremely small, lightweight connec-
tors with higher density contact configurations than
available in traditional rectangular connectors. They
are available in 8 shell sizes accommodating from 9
to 100 contacts, and special arrangements of power
and coaxial contacts.
These connectors are designed to meet the rapidly
increasing demands for an environmental, high per-
formance, rugged, moisture-sealed microminiature
connector. This connector employs size 24 MICRO-
MDM
PINª/MICROSOCKETª contacts on .050(1.27_
centers in a contact density identical to the stan-
dard MICRO-D connector series, but with these
additional features:
¥ Aluminum shells to provide greater strength,
prevent chipping, cracking or breaking, offer
electromagnetic (EMI) and RFI shielding.
¥ Silicone elastomer compression interfacial seal
to provide a moisture and humidity seal between
each contact and between contacts and shell.
How to Order
MIL-C-83513 ordering information- pages 240 and 241
SERIES
CONTACT ARRANGEMENTS
CONTACT TYPE
TERMINATION TYPE
TERMINATION CODE
HARDWARE
SHELL FINISH MOD CODES
SERIES
TERMINATION CODE*
MDM
-
51
P
H
001
P
-
XXX
MDM (size 9-100): Liquid Crystal Ploymer (LCP)
MDM (Combo Layout): Diallyl Phthalate insulator
Material
CONTACT ARRANGEMENTS
9-15-21-25-31-37-51-100 (standard)
7C2, 24C42 (coaxial)
or combination of
7P2, 24P4 (power)
coax and power
}
CONTACT TYPE
P - Pin
S - Socket
TERMINATION TYPE
(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.
HARDWARE
F - Float mount
B - No hardware standard
.091 (2.31) dia. hole for sizes 9-51;
.120 (3.05) dia. hole for size 100.
A - .125 (3.18) dia. mounting holes fo
sizes 9-51;
.166 (4.22) dia. hole for size 100.
B1 - .1475 (3.75) dia. hole for size 100
(Per MIL-C-83513)
SHELL FINISH MOD CODES**
H - Harness-insulated wire.
L - Solid-uninsulated wire.
S - Solder pot to accept #26 AWG MAX.
harness wire. (Not available with power
contact arrangements.)
M - Military specification hardware, see
page 237.
P - Jackpost
K - Jackscrew-standard
L - Jackscrew-low profile
No
Number - Standard Cadmium/yellow chromate
A174 - Electroless nickel
A172 - Gold over nickel
A141 - Irridite/alodine
A30 - Black anodize
*See Termination Codes page 233 for additional length
Modification codes.
**For other modifications not listed, consult the factory.
Performance and Material Specifications
STANDARD MATERIALS AND FINISHES
Shell
- Aluminum alloy per QQ-A-200/8
(6061-T6), yellow chromate/cadmium
per QQ-P-416, Type II, class 3.
- MIL-M-24519, Type GLCP-30F
Glass-filled diallyl phthalate per
MIL-M-14, Type SDGF
- Copper alloy, gold plate
- 300 Series stainless steel, passivate
- 300 Series stainless steel, passivate
- 400 Series stainless stell, passivate
- Hysol EE4198 with HD3561 hardener,
color green or EE4215 with HD3561,
color black
Coaxial Cable
Wire Size
Contact Termination
MECHANICAL FEATURES
Coupling
Polarization
Contact Spacing
Centers
Shell Styles
No. of Contacts
- Friction/jackscrews
- Keystone-shaped shells
- .050 (1.27)
- Plug and receptacle
- 9 thru 100 standard;
5 signal/2 coaxial;
5 signal/2 power.
20 signal/4 coaxial;
20 signal/4 power
- RG - 178/U
- #24 thru #32 AWG
- Multiple indent crimp
Insulator
Contacts
Mounting Hardware
Kit, Jackpost (3) items
Washer
Standard Epoxy
ELECTRICAL DATA - page 231
Dimensions are shown in inches (millimeters).
Dimensions subject to change.
www.ittcannon.com
232
Micro-D Metal Shell - .050" Contact Spacing
Standard Wire Termination Codes
Cannon Modification Code (Not MS)
The following tetmination codes are listed for your
information. For lengths not shown, consult factory
for proper modification code. All wire lengths are
minimum.
Harness TYPE (H)
#26 AWG per MIL-W-16878/4, 7/34 strand, type E Teflon, stranded.
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
MDM
Solid Uninsulated Type (L)
#25 AWG gold plated copper
Termination Code
L61
L56
L57
L39
L58
L1
L14
L2
L7
L6
L16
L10
Milimeters are in parentheses.
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)
Contact Arrangements
(Face View of Pin insert - Use Reverse Order for Socket Side)
Standard
.050
(12.70)
TYP.
.043
(10.92)
1
2
3
4
5
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
9
10
11
6
7
8
9
9
10 11 12 13 14 15
12
13 14 15 16 17 18 19 20 21
9 Contacts
1
2
3
4
5
6
7
8
9
10
11 12 13
1
2
3
4
5
6
15 Contacts
7
8
9
10
11 12 13 14 15 16
1
2
3
4
5
6
7
21 Contacts
8
9
10
11 12 13 14 15 16 17 18 19
14
15 16 17 18 19 20 21 22 23 24
25
17
18 19 20 21 22 23
24 25 26 27 28 29 30 31
20 21 22 23
24 25 26 27 28 29 30 31 32 33 34 35 36 37
25 Contacts
31 Contacts
1
2
3
4
5
6
7
8
37 Contacts
9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26
46 47 48 49 50 51
27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45
1
2
3
4
5
6
7
8
9
10 11 12 13 14 15 16 17 18
19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35
36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51
52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75
76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100
51 Contacts
Contact identification numbers are for reference only and do not appear on insulator or connector body.
100 Contacts
Coaxial
.320
(8.13)
A1
1
4
2
5
3
A2
A1
A2
1
8
.714 (18.14)
.460 (11.68)
2
3
4
5
6
7
A3
A4
9 10 11 12 13
14 15 16 17 18 19 20
Size 25 Shell
5 Micro contact
2 Coax or 2 Power
Size 51 Shell
20 Micro Contacts
4 Coax or 4 Power
(Not MS)
.007
(0.18)
Dimensions are shown in inches (millimeters).
Dimensions subject to change.
www.ittcannon.com
233
Micro-D Metal Shell - .050" Contact Spacing
Shell Dimensions (Conforms to MIL-C-83513)
Plug
TWO MTG. HOLES
.009 + .003(2.31 + 0.008)
_
_
F
E
.416 (10.57)
MAX.
C
A
.284 (7.21)
MAX.
B
MDM
.186 (4.72)
MAX.
.093
(2.36)
REF.
.110 (2.79)
MAX.
G
D
.200 (5.08)
MAX.
Solder Pot
Receptacle
.296 (7.52)
MAX.
.110 (2.79)
MAX.
G
D
.200 (5.08)
MAX.
TWO MTG. HOLES
.009 + .003(2.31 + 0.008)
_
_
F
.429 (10.09)
MAX.
E
C
A
.198 (5.03)
MAX.
B
.093
(2.36)
REF.
Solder Pot
Receptacle (MDM-100 only)
TWO MTG. HOLES
.120 + .003(2.31 + 0.08)
_
_
.394 (10.01)
MAX.
.394 (10.01)
MAX.
.198 (5.03)
MAX.
B
.093 (2.36)
REF.
G
D
E
.296 (7.52)
MAX.
Pigtail termination
F
A
C
Part Number
By Shell Size
MDM-9P*
MDM-9S*
MDM-15P*
MDM-15S*
MDM-21P*
MDM-21P*
MDM-25P*
MDM-25S*
MDM-31P*
MDM-31S*
MDM-37P*
MDM-37S*
MDM-51P*
MDM-51S*
MDM-100P*
MDM-100S*
A
Max.
.785 (19.94)
.785 (19.94)
.935 (23.75)
.935 (23.75)
1.085 (27.56)
1.085 (27.56)
1.185 (30.10)
1.185 (30.10)
1.335 (33.91)
1.335 (33.91)
1.485 (37.72)
1.485 (37.72)
1.435 (36.45)
1.435 (36.45)
2.170 (55.12)
2.170 (55.12)
B
Max.
.334 (8.48)
.402 (10.21)
.484 (12.29)
.552 (13.97)
.634 (16.10)
.702 (17.83)
.734 (18.64)
.802 (20.37)
.884 (22.45)
.952 (24.18)
1.034 (26.26)
1.102 (27.99)
.984 (24.99)
1.052 (26.72)
1.384 (35.15)
1.508 (38.10)
C
Max.
.400 (10.16)
.400 (10.16)
.550 (13.97)
.550 (13.97)
.700 (17.78)
.700 (17.78)
.800 (20.32)
.800 (20.32)
.950 (24.13)
.950 (24.13)
1.100 (27.94)
1.100 (27.94)
1.050 (26.67)
1.050 (26.67)
1.442 (36.63)
1.442 (36.63)
D
Max.
.270 (6.86)
.270 (6.86)
.270 (6.86)
.270 (6.86)
.270 (6.86)
.270 (6.86)
.270 (6.86)
.270 (6.86)
.270 (6.86)
.270 (6.86)
.270 (6.86)
.270 (6.86)
.310 (7.87)
.310 (7.87)
.360 (9.14)
.360 (9.14)
E
Max.
.308 (7.82)
.308 (7.82)
.308 (7.82)
.308 (7.82)
.308 (7.82)
.308 (7.82)
.308 (7.82)
.308 (7.82)
.308 (7.82)
.308 (7.82)
.308 (7.82)
.308 (7.82)
.351 (8.92)
.351 (8.92)
.394 (10.01)
.394 (10.01)
F
+.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)
1.800 (45.72)
1.800 (45.72)
G
Max.
.185 (4.70)
.253 (6.43)
.185 (4.70)
.253 (6.43)
.185 (4.70)
.253 (6.43)
.185 (4.70)
.253 (6.43)
.185 (4.70)
.253 (6.43)
.185 (4.70)
.253 (6.43)
.228 (5.79)
.296 (7.52)
.271 (6.88)
.394 (10.01)
Average Weights**
oz. (gm.) +5%
_
.063 (1.79)
.063 (1.79)
.084 (2.39)
.083 (2.37)
.105 (2.99)
.104 (2.97)
.119 (3.39)
.118 (3.36)
.140 (3.99)
.139 (3.96)
.161 (4.59)
.160 (4.56)
.193 (5.50)
.188 (5.35)
.500 (14.3)
1.040 (29.5)
*Add lead type and length; see How To Order.
***Weight given is 1/2", uninsulated, solid, #25 AWG gold plated copper pigtails.
Panel Mounting Dimensions (Sizes 9 - 100)
.200 + .005
_
(5.08+
_0.13)
.300 + .005
_
(7.62+
_0.13)
.395 + .005
_
(10.03+
_0.13)
Plug and Receptacle
Rear Mounted
Plug and Receptacle
Front Mounted
Plug Front Mounted
Receptacle Rear Mounted
Dimensions are shown in inches (millimeters).
Dimensions subject to change.
www.ittcannon.com
234
Micro-D Metal Shell - .050" Contact Spacing
Panel Cutouts
NOTE: See page 237 for rear panel mounting configuration.
Shell Sizes 9 thru 51
.450+ .002
_
(11.43+ 0.05)
_
C
.030 (0.76) TYP.
MDM
C
D
TYP.
C
D
TYP.
A
.100
(2.54)
R TYP.
+.005
-.000
+0.13
-0.00
)
D
B
FULL R. (TYP.)
26˚/27˚TYP
FULL R.
(TYP.)
PANEL REF.
B
+ +
+ +
FULL R.
(TYP.)
A
.015 (0.38)R.
MAX.(TYP)
Figure 1
Front Mounting
Figure 2
Rear Mounting
Figure 3
Edgeboard Mounting
Shell Size 100
.450+ .002
_
(11.43+ 0.05)
_
.118
(3.00
+.005
-.000
+0.13
-0.00
1.805
.030
(0.76) TYP.
+.005
-.000
+0.13
-0.00
(45.85 )
.118
(3.00
+.005
-.000
+0.13
-0.00
1.805
+.005
-.000
+0.13
-0.00
.118
(3.00
.361
(9.17
+.004
-.000
+0.10
-0.00
+.005
-.000
+0.13
-0.00
1.805
+.005
-.000
+0.13
-0.00
)
)
(45.85 )
)
(45.85 )
.401
(10.18
1.520
+.004
-.000
+0.10
-0.00
+.004
-.000
+0.10
-0.00
)
)
+ +
+ +
1.456
(36.98
.015 (0.38)
R. MAX (TYP.)
+.004
-.000
+0.10
-0.00
)
FULL R. (TYP.)
.125
(3.18
+.005
-.000
+0.13
-0.00
(38.61
)
FULL R. (TYP.)
FULL R. (TYP.)
PANEL REF.
)
Figure 1
Front Mounting
Figure 2
Rear Mounting
Figure 3
Edgeboard Mounting
For 9-51 Shell Sizes
NOTES:
1. Front mounting (figure 1) and rear mounting
(figure 2) accommodates #2-56 screws
2. Front mounting is preferred. However, when
rear mounting is necessary, use figure 2 dimen-
sions when jackscrews are used. See detail on
page 24 when jackpost are used.
3. Edgeboard mounting bracket (figure 3) uses
#2-56
screws.
Dimension
.450+
_.002
(11.43+ 0.05) locates the MDM receptacle
_
flush with the end of the board.
Shell
Size
Cutout
Figure
1
9
2
3
1
15
2
3
1
21
2
3
1
A
+.004 (0.10)
-.000 (0.00)
.408 (10.36)
.401 (10.19)
-
.558 (14.17)
.551 (14.00)
-
.708 (17.98)
.701 (17.81)
-
.808 (20.52)
.801 (20.34)
-
.958 (24.33)
.951 (24.16)
-
1.108 (28.14)
1.101 (27.97)
-
1.058 (26.87)
1.051 (26.70)
-
B
+.004 (0.10)
-.000 (0.00)
.271 (6.88)
.252 (6.40)
-
.271 (6.88)
.252 (6.40)
-
.271 (6.88)
.252 (6.40)
-
.271 (6.88)
.252 (6.40)
-
.271 (6.88)
.252 (6.40)
-
.271 (6.88)
.252 (6.40)
-
.315 (8.00)
.295 (7.49)
C
+.005 (0.13)
-.000 (0.00)
.570 (14.48)
.570 (14.48)
.570 (14.48)
.720 (18.29)
.720 (18.29)
.720 (18.29)
.870 (22.10)
.870 (22.10)
.870 (22.10)
.970 (24.64)
.970 (24.64)
.970 (24.64)
1.120 (28.45)
1.120 (28.45)
1.120 (28.48)
1.270 (32.26)
1.270 (32.26)
1.270 (32.26)
1.220 (30.99)
1.220 (30.99)
1.220 (30.99)
D
+.005 (0.13)
-.000 (0.00)
.089 (2.26)
.089 (2.26)
.089 (2.26)
.089 (2.26)
.089 (2.26)
.089 (2.26)
.089 (2.26)
.089 (2.26)
.089 (2.26)
.089 (2.26)
.089 (2.26)
.089 (2.26)
.089 (2.26)
.089 (2.26)
.089 (2.26)
.089 (2.26)
.089 (2.26)
.089 (2.26)
.089 (2.26)
.089 (2.26)
.089 (2.26)
For 100 Shell Size
NOTES:
1. Front mounting (figure 1) and rear mounting
(figure 2) accommodates #4-40 screws.
2. Edgeboard mounting bracket (figure 3) uses
#4-40
screws.
Dimension
.450+
_.002
(11.43+
_0.05) locates the MDM receptacle
flush with the end of the board.
3. Front mounting is prefered. However, when
rear mounting is necessary, use figure 2 dimen-
sions.
25
2
3
1
31
2
3
1
37
2
3
1
51
2
3
Dimensions are shown in inches (millimeters).
Dimensions subject to change.
www.ittcannon.com
235
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