MDMH Hermetic Micro-D


Our MDMH Microminiature Connectors are ideal for applications that require more robust sealing than can be achieved with epoxy resins. The MDMH uses size 24 AWG contacts that are compression glass sealed through a steel shell and into a diallyl pthalate front-end insulator. When mated, an interfacial seal provides  environmental protection. We recommend MDMH receptacles be soldered to the chassis or container for a completely leak-proof joint. MDMH receptacles mate with standard MDM plugs.


  • Hermetically sealed connector designed for those applications where a vacuum, inert gas or a constant controlled pressure are required to eliminate adverse effects created by atmospheric changes
  • Steel shells provide greater strength & prevent chipping, cracking or breaking
  • Silicone elastomer compression interfacial seal to provide a moisture and humidity seal between each contact and between contacts and shell
  • Sealed with leak-proof compression glass 

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Product Specification


Sealing Hermetic
Operation Temperature -65°C to +125°C


Shape D Shape
Shell Style Receptacle, Solder p
Durability 250 Mating Cycles
Power & Signal In Same Layout No
Contact Style / Termination Crimp, Solder, Printed Circuit


Shell Steel
Shell Plating Electroless Nickel
Insulator Glass filled diallyl phthalate per MIL-M-14. Type SDG-F
Contact Plating Gold


Operating Voltage 100 VDC
Dielectric with Standing Voltage 300 VAC
Current Rating 5A
Number of Signal Contacts (MIN/MAX) 9 to 100
Gauge Wire Size 24 to 26 AWG