MDM Datasheet, PDF (1/11 Pages) ITT Industries – Micro-D Metal Shell - .050 Contact Spacing

Micro-D Metal Shell - .050" Contact Spacing
MDM
Specifications
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.
These connectors are designed to meet the rap-
idly increasing demands for an environmental,
high performance, rugged, moisture-sealed
microminiature connector. This connector
employs size 24 MICROPIN^TM/MICROSOCKET^TM
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.
• Silicone elastomer compression interfacial
seal to provide a moisture and humidity
seal between each contact and between
contacts and shell.
STANDARD MATERIALS AND FINISHES
Shell
Insulator
- 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)
- 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
Washer
- 400 Series stainless stell, passivate
Standard Epoxy
- Hysol EE4215/HD3561, color black
or Hysol EE4198/HD3561, color green
MECHANICAL FEATURES
Coupling
- Friction/jackscrews
Polarization
- Keystone-shaped shells
Contact Spacing - .050 (1.27)
Centers
Shell Styles
- Plug and receptacle
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
Coaxial Cable
- RG - 178/U
Wire Size
- #24 thru #32 AWG
Contact Termination - Multiple indent crimp
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
Dielectric Withstanding
Voltage
Insulation Resistance
Thermal Shock
Physical Shock
Vibration
Durability
Moisture Resistance
Salt Spray
Contact Resistance
(MIL-STD-202)
Contact Retention
Method
Criteria of Acceptance
Method 3001:
600 VAC at sea level
150 VAC at 70,00' altitude
No breakdown
No breakdown
Method 3003
5,000 megohms minimum
Method 1003. Condition A:
- 55˚C to +125˚C
No physical damage
Method 2004, Condition E:
50 G's, 3 axes, 6 millisecond
duration sawtooth pulse
No physical damage
No loss of continuity > 1 µsec
Method 2005, Condition IV:
20 G's, 10-2,000 Hz. 12 hrs
No physical damage
No loss of continuity > 1 µsec
500 cycles of mating and
unmating, 500 CPH max.
No mechanical or electrical defects
Method 1002, Type II, omit steps 7a & 7b _{Insulation resistance > 100 megohms}
Method 1001, Condition B:
48 hours
Method 1001, Condition B:
At 3 amps
At 1 milliamp
Shall be capable of mating and unmating,
and meet contact resistance requirements
8 milliohms maximum
10 milliohms maximum
Per MIL-DTL-83513
5 lb. minimum axial load
Dimensions shown in inch (mm)
Specifications and dimensions subject to change
www.ittcannon.com
7