Micro-D Metal Shell - .050" Contact Spacing
MDM
MDM connectors are used in applications
requiring highly reliable, extremely small, light-
weight connectors with higher density contact
configurations than available in traditional rec-
tangular connectors. They are available in 8
shell sizes accommodating from 9 to 100 con-
tacts, and special arrangements of power and
coaxial contacts.
employs size 24 MICROPINTM/MICROSOCKETTM
contacts on .050 (1.27) centers in a contact
density identical to the standard MICRO-D con-
nector series, but with these additional features:
• Aluminum shells to provide greater
strength, prevent chipping, cracking or
breaking, offer electromagnetic (EMI) and
RFI shielding.
These connectors are designed to meet the rap-
idly increasing demands for an environmental,
high performance, rugged, moisture-sealed
microminiature connector. This connector
• Silicone elastomer compression interfacial
seal to provide a moisture and humidity
seal between each contact and between
contacts and shell.
Specifications
STANDARD MATERIALS AND FINISHES
MECHANICAL FEATURES
Shell
- 6061-T6 Aluminum alloy per
QQ-A-200/8, yellow chromate/
cadmium, Type II, Class 3 over
electroless nickel per SAE
AMS-C-26074, Class 4.
- Liquid Crystal Polymer per MIL-M-24519,
Type GLCP-30F (9-100)
Coupling
- Friction/jackscrews
- Keystone-shaped shells
- .050 (1.27)
Polarization
Contact Spacing
Centers
Shell Styles
- Plug and receptacle
Insulator
No. of Contacts
- 9 thru 100 signal;
5 signal/2 coaxial;
5 signal/2 power;
11 signal/5 coaxial;
11 signal/5 power;
0 signal/10 coaxial;
0 signal/10 power;
20 signal/4 coaxial;
20 signal/4 power
- Glass filled diallyl phthalate per
MIL-M-14, Type SDGF (7*2 and 24*4)
- Polyphenylene sulfide per
MIL-M-24519, Type GST-40F (16*5)
- Polyester per MIL-M-24519, Type
GPT-30F (10*10)
Contacts
- Copper alloy, gold plate
Mounting Hardware - 300 Series stainless steel, passivate
Kit, Jackpost (3) items - 300 Series stainless steel, passivate
Coaxial Cable
Wire Size
- RG - 178/U
- #24 thru #32 AWG
Washer
- 400 Series stainless stell, passivate
Contact Termination - Multiple indent crimp
Standard Epoxy
- Hysol EE4215/HD3561, color black
or Hysol EE4198/HD3561, color green
Performance Data
The table below summarizes the results of key tests performed in accordance with MIL-STD-1344, where
applicable. Data is applicable to standard connectors with standard termination. Variations may affect this
data, so please consult customer service for further information on your requirements.
Test
Method
Criteria of Acceptanc
e
Dielectric Withstand
Voltage
ing
Method 3001:
600 VAC at sea leve
150 VAC at 70,00' a
l
No b
No b
reakdown
reakdown
ltitude
Insulation Resistanc
e
Method 3003
5,000 megohms min
No physical damage
imum
Thermal Shock
Method 1003. Cond
- 55˚C to +125˚C
ition A:
Physical Shock
Method 2004, Cond
50 G's, 3 axes, 6 mi
duration sawtooth p
ition E:
llisecond
ulse
No physical damage
No loss of continuity
> 1 µsec
Vibration
Durability
Method 2005, Cond
20 G's, 10-2,000 Hz
ition IV:
No physical damage
. 12 hrs
No loss of continuit
y > 1 µsec
500 cycles of matin
unmating, 500 CPH
g and
No mechanical or el
ectrical defects
max.
Moisture Resistance
Method 1002, Type II,
omit steps 7a & 7b
ition B:
Insulation resistance
Shall be capable of m
and meet contact res
> 100 megohms
ating and unmating,
istance requirements
Salt Spray
Method 1001, Cond
48 hours
Contact Resistance
(MIL-STD-202)
Method 1001, Cond
At 3 amps
At 1 milliamp
ition B:
8 milliohms maximu
10 milliohms maxim
m
um
Contact Retention
Per MIL-DTL-83513
5 lb. minimum axial
load
Dimensions shown in inch (mm)
Specifications and dimensions subject to change
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