ITT Cannon MDM Micro-D MIL-DTL-83513 Selection Guide
ITT Cannon MDM Micro-D MIL-DTL-83513 Selection Guide
ITT Cannon MDM is a metal-shell Micro-D connector series designed for aerospace, defense, space, avionics, instrumentation and other applications where connector size, weight and reliability are critical.
The MDM series uses contacts on a 0.050-inch (1.27 mm) pitch and is available with 9 to 100 signal contacts. Compared with standard D-sub connectors, MDM connectors provide higher contact density in a much smaller enclosure while retaining metal-shell protection, positive polarization and locking hardware.
The series includes factory-wired connectors, solder-pot connectors and straight or right-angle PCB versions. Selected configurations are available under MIL-DTL-83513 military specifications.
ITT Cannon MDM Key Specifications
| Specification | MDM Series |
|---|---|
| Connector type | Metal-shell Micro-D |
| Contact spacing | 0.050 in / 1.27 mm |
| Standard contact counts | 9, 15, 21, 25, 31, 37, 51 and 100 |
| Additional catalog arrangement | 69 contacts, availability should be confirmed |
| Contact types | Pin or socket |
| Shell styles | Plug and receptacle |
| Contact material | Gold-plated copper alloy |
| Shell material | Aluminum alloy |
| Standard wire size | #24 to #32 AWG, depending on configuration |
| Maximum contact current | Up to 3 A |
| Dielectric withstand voltage | 600 VAC at sea level |
| Insulation resistance | 5,000 MΩ minimum |
| Contact resistance | 8 mΩ maximum at 3 A |
| Operating test temperature | −55°C to +125°C |
| Mechanical shock | 50 g |
| Vibration | 20 g |
| Durability | 500 mating cycles |
| Polarization | Keystone-shaped shell |
| Applicable specification | MIL-DTL-83513 for qualified configurations |
Actual performance and qualification depend on the complete part number. High-temperature, hermetic, filtered and mixed-contact versions may use different materials or specifications.
ITT Cannon MDM Contact Arrangements
The contact count determines the connector shell size and available circuit capacity.
| Contact count | Typical applications |
|---|---|
| 9 | Sensors, serial communication and compact control interfaces |
| 15 | Avionics modules, test instruments and navigation equipment |
| 21 | Monitoring systems and mixed control signals |
| 25 | High-density equipment I/O |
| 31 | Guidance, radar and communication systems |
| 37 | Aircraft wiring and industrial control equipment |
| 51 | Large signal harnesses and test systems |
| 100 | Maximum-density signal interconnection |
The current catalog ordering table also lists a 69-contact arrangement. Availability, qualification and mechanical dimensions should be confirmed before placing an order.
ITT Cannon also offers selected Micro-D arrangements combining signal contacts with coaxial or power contacts. These configurations require the complete contact layout and termination requirements to be specified.
Main ITT Cannon MDM Models
The following models illustrate common MDM connector configurations.
| Model | Contacts | Contact type | Termination | Hardware/configuration |
|---|---|---|---|---|
| MDM-9SSB | 9 | Socket | Solder pot | No hardware |
| MDM-9PSK | 9 | Pin | Solder pot | Standard jackscrew |
| MDM-9PSM7 | 9 | Pin | Solder pot | MIL-spec jackpost hardware |
| MDM-9SL2P | 9 | Socket | 1-inch solid wire | Jackpost |
| MDM-9PH006P | 9 | Pin | Insulated wire | Jackpost |
| MDM-9SH003B | 9 | Socket | Color-coded wire | No hardware |
| MDM-15PH003P | 15 | Pin | Color-coded wire | Jackpost |
| MDM-15PH006B | 15 | Pin | Insulated wire | No hardware |
| MDM-15PCBR | 15 | Pin | Narrow-profile right-angle PCB | PCB configuration |
| MDM-25SSB | 25 | Socket | Solder pot | No hardware |
| MDM-37PH003P | 37 | Pin | Color-coded wire | Jackpost |
| MDM-51SH003P | 51 | Socket | Color-coded wire | Jackpost |
Some wire-length codes and modification suffixes vary according to the drawing revision. The complete manufacturer part number should always be checked before purchase.
ITT Cannon MDM Part Number and Ordering Guide
MDM Related Series Comparison
| Series | Main feature | Typical application |
|---|---|---|
| MDM | Standard metal-shell Micro-D | Avionics, instrumentation and control systems |
| RMDM | RoHS-compliant configuration | Industrial and commercial high-reliability equipment |
| MDM-PCB | Straight or right-angle PCB termination | Board-to-cable and board-to-board connections |
| High-Temperature MDM | Elevated-temperature construction | Engines, downhole equipment and high-temperature instrumentation |
| MDMH | Hermetic Micro-D | Sealed enclosures and vacuum feedthroughs |
| TMDM | Filtered Micro-D | EMI-sensitive electronic equipment |
| MDM-C/P | Coaxial and power mixed contacts | RF, signal and power combined interfaces |
These related series may use similar shell dimensions but are not automatically interchangeable. Contact layout, sealing, termination, finish and qualification must be compared.
Typical Applications
ITT Cannon MDM Micro-D connectors are commonly used in:
Commercial and military avionics
Satellites and spacecraft
Radar and communication equipment
Missile and guidance systems
Navigation equipment
Unmanned aerial vehicles
Medical instruments
Handheld test equipment
Robotics
Geophysical instruments
Industrial control systems
Compact data-acquisition equipment
Request ITT Cannon MDM Pricing and Selection Support
DataStorageIC supplies ITT Cannon MDM Micro-D connectors for aerospace, defense, industrial and high-reliability applications.
Send us the complete part number, contact count, connector photos, mating model, required quantity and application requirements. We can assist with MDM model identification, mating-connector selection, cross-reference checking, availability and quotation.
