Home ITT Cannon Micro-D Connectors MDM Series MIL-DTL-83513 Micro-D

ITT Cannon MDM Series MIL-DTL-83513 Micro-D Connectors

ITT Cannon MDM Series MIL-DTL-83513 Micro-D Connectors

HIGHLY-RELIABLE MINIATURE D-SUB-TYPE TWIST PIN CONNECTOR

ITT Cannon MDM series MIL-DTL-83513 micro-D connectors are small, high-density connectors used where standard d-sub connectors had typically been used, but size and weight are of concern. The MDM series is engineered with a strong yet lightweight aluminum shell and a high-reliability twist pin contact system with Pos-A-Line Alignment. ITT Cannon’s MDM series are excellent medical connectors and are also perfect for instrumentation and satellite system applications. Mil spec part numbers begin M83513; ITT Cannon part numbers begin MDM. For full details on ITT Cannon MDM series MIL-DTL-83513 micro-D connectors, see the product specifications below.
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FEATURES

ITT CANNON MDM SERIES FEATURES

  • High-Strength, Light-Weight Aluminum Shells
    These connectors use aircraft/space grade aluminum shells that are capable of withstanding the rigors of space, including ballistic launching into space and the environmental extremes of space.

  • Extremely Small Interconnect
    Micro-D connectors are designed with contacts on .050" (1.27) centers and size 24 contacts, providing ultra-high density connectors in half the space typically needed for standard D-Subminiature connectors. These connectors are typically used where small space and lightweight are of primary concern.

  • Unique Twist Pin and Solid Tube Socket
    Micro-D’s use ITT Industries twist pins that are constructed by welding seven wires together to form a strong rounded tip. Then, slightly twist the wires to form a birdcage before crimping them into the body of the pin contact. Micro-D’s differ from standard D-Subminiature connectors in that the pin contacts are protectively housed in the insulator and the solid tube socket contacts are visibly extended from the socket insulator. This unique design protects the twist pin from damage. The pin contact bird cage gets compressed, elongates and twists inside the smaller diameter of the solid tube socket providing excellent wiping action and extremely low contact bounce, even under high vibration.

  • Total Environmental-Sealing Silicone Interfacial Seals and Epoxy-Potted Contacts
    The silicone interfacial seal prevents the entrance of environmental contaminants, humidity and moisture from entering the contact area when mated. The wire side of the connectors are potted with high quality epoxy that encapsulates the wire side of the connector and locks the contacts into the insulator, preventing any contact pullout.

  • Pre-wired Connectors for Fast, Easy Assembly
    Micro-D connectors are available in three basic styles: solder, printed circuit and the popular pre-wired connector version. This version comes in a wide variety of lengths from short .500” (12.70) solid 25#AWG wires up to 72” (3048.0) Teflon-insulated, stranded 26 AWG wires that can be trimmed down to suit your application and prevents the tedious process of having to solder many fine wires onto the tightly spaced terminals.



MATERIALS & FINISHES

ITT CANNON MDM SERIES MATERIALS & FINISHES
Shell
Aluminum alloy per QQ-A-200/8 (6061-T6)
Plating
Yellow chromate over cadmium per QQ-P-416, Type II, Class 3 over electroless nickel underplate or for Zero cadmium and space applications, electroless nickel per MIL-C-26074, Class 3 of 4, Grade B
Contacts
Pins - outer strands BeCu alloy per QQ-C-530
Inner strands - copper alloy per QQ-W-343, Type S
Sleeve - copper alloy per ASTM B75
Sockets - copper alloy per ASTM B140
Plating
Minimum 50 microinches gold per MIL-G-45204, Type II, Grade C, Class 1, over copper flash
Insulator
Liquid Crystal Polymer (LCP) A130 or C130 color black per MIL-M-24519, Type GLCP-30
Epoxy Wire Seal
Pre-wired harnesses - Hysol EE4215/HD3561 (black)
Printed circuit - Hysol MG8F-0134 (black)
Wire
25 AWG Solid copper per QQ-W-343, Type S, Plated Tin 100 microinches or gold 10 microinches MDM - 26 AWG Teflon wire 7/34 per MIL-W-16878/4, Type E Yellow or Color Coded per MIL-STD-681 System 1 M83513 - 26 AWG Teflon wire 19/38 per MIL-W-22759 White or Color Coded per MIL-STD-681 System 1 except wire number equals contact cavity number minus 1, and 10 colors repeating

ELECTRICAL DATA

ITT CANNON MDM SERIES ELECTRICAL DATA
Test Voltage
600 Vac at sea level
150 Vac at 70,000 feet (23410 meters)
Current Rating
2.5 Amps (test)
Contact Resistance
8 milliohms maximum at 3 amps
10 milliohms maximum at 1 milliamps: MIL-STD-202 Method 307
Insulation Resistance
5000 megohms minimum at 500 Vdc
1000 megohms minimum after condition; MIL-STD-1344 Method 1002
Magnetic Permeability
2.0μ (connectors less hardware)
Thermal Vacuum Outgassing
per NASA SP-R-0022 (space class only)
Printed circuit - Hysol MG8F-0134 (black)
Total Mass Loss
1.0 percent maximum
Volatile Condensable Material (VCM) 0.1 percent maximum

MECHANICAL

ITT CANNON MDM SERIES MECHANICAL
Operating Temperature
-55°C to +125°C (-67°F to +257°F)
Sealing
Humidity
Mating Life
500 cycles minimum
Salt Spray
48 hours MIL-STD-1344 Method 1001 Condition B
Chemical Resistance
Cleaning solvents: Perchloroethylene US practical grade, 2 hours Lubricating oil aircraft turbine engine, synthetic base 20 hours Coolant (coolanol 25 or equivalent) 1 hour +/- 1 minute
Vibration
20g’s MIL-STD-1344 Method 2005 Condition IV
Shock
50g’s MIL-STD-1344 Method 2004 Condition C
Contact Type
Pre-wired, solder, printed circuit board (gold-plated)
Number of Circuits
9 to 100
Contact Retention
5 pounds minimum
Polarization
D-shaped shells
Approvals
MIL-DTL-83513

 
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