Microminiature Connectors
With an increasing number of MDM connec-
tors being used in avionics and military equip-
ment and with increasing emphasis being put
on EMI, RFI and EMP shielding, Cannon have
developed a range of filter connectors to suit
most applications.
The TMDM receptacle accommodates from 8
to 37 sizes, 24 AWG socket contacts on 1,27
(.050) centres and mates with the standard
MDM plugs.
Features
Filter-TMDM
• Transverse monolith filter for EMI and RFI
shielding.
• Rugged aluminum one piece shell.
• Silicone interfacial environmental seal.
• Glass filled diallyl phthalate insulator.
• A variety of filter types for each pin.
Specifications
Standard materials & finishes
Shell
Insulator
Contact, socket
Interfacial seal
ELECTRICAL DATA
No. of contacts
Dielectric withstanding voltage
Insulation resistance
Voltage rating (working)
Current rating
Maximum capacitance
Filter type
MECHANICAL FEATURES
Size or length
Coupling
Polarization
Contact spacing
Shell style
Aluminum alloy per QQ-A-200/8 with electroless nickel finish per QQ-N-290
Glass filled diallyl phthalate per MIL-M-14. Type SDGF
Copper alloy, 50 microinch gold per MIL-G-45204, Type ll, Class l
Silicone base rubber
9 to 37
300 VAC
5000 Mohm at 100 VDC
100 VDC
3 amps max.
250, 500, 1000, 2000 picofarads
C
6 sizes
Friction/jackscrews
Keystone shaped shell
.050 (1,27) centers
Single piece receptacle
How to Order
TMDM – C1
Series
Filter type
Number of contacts
Contact style
Termination type
Termination/modifier code
Mounting code
Modification code
Series:
Filter TMDM - Micro “D” - Metal housing
Filter type:
“C” capacitor type
C1
150 - 250 pF capacitance
300 - 500 pF capacitance
C2
C3
700 - 1000 pF capacitance
C4
1300 - 2000 pF capacitance
Number of contacts:
9, 15, 21, 25, 31, 37 only
Contact style:
S - socket (receptacle)
P - Pin (plug)
Dimensions shown in inch (mm)
Specifications and dimensions subject to change
Termination type:
H - harness, insulated solid or stranded wire
L - lead, solid uninsulated wire
Termination:
Consult standard wire termination code for lead
material and lead length
Mounting code:
A - Flange mounting, Ø.125 (3,18)
mounting holes
B - Flange mounting, Ø.092 (2,34)
mounting holes
L - Low profile (slotted head)
M2 - Allen head jackscrew assembly,
low profile
M3 - Allen head jackscrew assembly,
high profile
M5 - Slot head jackscrew assembly,
low profile
M6- Slot head jackscrew assembly,
high profile
M7 - Jacknut assembly
P - Jackpost
Modification code:
Shell finish MOD. Codes. *
To be assigned as required
* No number = Standard tin/lead finish
15
S
H
001 B-
*
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Microminiature Connectors
Guaranteed Minimum Attenuation
Filter
designation
C1
C2
C3
C4
Capacitance
range (pF)
150 - 250
300 - 500
700 - 1000
1300 - 2000
5
3
8
3
7
13
10 MHz
15 MHz
30 MHz
Minimum Insertion Loss-decibels
50 MHz
100 MHz
200 MHz
4
6
13
18
6
12
17
23
15
18
25
30
Filter-TMDM
500 MHz
20
25
38
40
1 GHz
35
40
48
50
Standard Wire Termination Codes
Cannon Modification Codes – (Not Mil Spec)
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) #26 AWG per
MIL-W-16878/4 Type E Teflon, stranded
Length
(76.2)
3
6 (152.4)
8 (203.2)
10 (254.0)
12 (304.8)
18 (457.2)
20 (508.0)
24 (509.6)
30 (762.0)
36 (914.4)
48 (1219.2)
72 (1828.8)
120 (3048.0)
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
Solid Uninsulated Type (L)
#25 AWG gold plated copper.
Code
L61
L56
L57
L39
L58
L1
L14
L2
L7
L6
L6
L10
Length
.125
(.18)
.150 (3.81)
.190 (4.83)
.250 (5.35)
.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)
Shell Dimensions
A
F
B
7,60
10,90 (.299)
(.500)* MAX
MAX
5,06
(.199)
MAX
D
G
E
2 HOLES
Ø2,32 (.091)
± 0,08 (.003)
Part Number
by shell size
MDMT-9S*
MDMT-15S*
MDMT-21S*
MDMT-25S*
MDMT-31S*
MDMT-37S*
A
max
.785 (19,94)
.935 (23,75)
1.085 (27,60)
1.185 (30,10)
1.335 (33,90)
1.485 (37,70)
B
max
.400 (10,16)
.550 (13,97)
.700 (17,78)
.800 (20,32)
.950 (24,13)
1.100 (28,00)
C
max
.400 (10,16)
.550 (13,97)
.700 (17,78)
.800 (20,32)
.950 (24,13)
1.100 (28,00)
D
max
.270 (6,86)
.270 (6,86)
.270 (6,86)
.270 (6,86)
.270 (6,86)
.270 (6,86)
E
max
.308 (7,83)
.308 (7,83)
.308 (7,83)
.308 (7,83)
.308 (7,83)
.308 (7,83)
C
*.750 max for pre-wired versions (H modifier above)
F max
±0,13 (.005)
.565 (14,36)
.715 (18,17)
.865 (21,98)
.965 (24,52)
1.115 (28,30)
1.265 (32,20)
G
max
.251 (6,38)
.251 (6,38)
.251 (6,38)
.251 (6,38)
.251 (6,38)
.251 (6,38)
Dimensions shown in inch (mm)
Specifications and dimensions subject to change
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