2M Hermetic Micro-Miniature Connectors

Product 2M Hermetic Product 2M Hermetic


Joe Ryder
Product Manager


Amphenol 2M Hermetic micro-miniature connectors offer a superior hermetic seal while offering the same durability of MIL-DTL-38999 connectors but with less than half the size and weight.

The small and lightweight 2M Hermetic connector provides an exceptional airtight seal without sacrificing ruggedness and meets or exceeds most MIL-DTL-38999 environmental and performance requirements.

2M Hermetics come in a variety of coupling technologies, including tri-start, push-pull, bayonet, and dual start.

Features & Benefits:

  • Provide superior sealing of 1x10-8 cc/sec helium, 100% tested prior to shipping
  • Low profile shells for minimum box protrusion
  • Less than half the weight and size of similar MIL-DTL-38999
  • Multiple coupling technologies, including tri-start, push-pull, bayonet, and dual start
  • Intermateable with Glenair's Mighty Mouse
  • "Anti-Decoupling" ratchet mechanism and ground spring for military airframes and avionics boxes. Fast Mating
  • Shell Standoffs for PC Board washout
Tips for Customizing Hermetics

  1. How many Contacts?
    Consider including a number of redundant contacts to accommodate any system developments you have planned for the future, or to comply with specified growth provisions.

  2. What are the electrical requirements?
    Work out a steady state and peak requirement for both the current and voltage.

  3. Will your Glass-to-Metal Sealing be under any pressure?
    Depending on the medium (for example, oil, water, or a vacuum) there may be a pressure differential to consider. Glass-to-Metal Sealing (GTMS) can be supplied in multi-pin preforms or, for high pressure applications in individual glass beads.

  4. How will your GTMS be attached?
    Will it be secured with a standard O-ring, for example, or welded in place?

  5. What are your cable interface requirements?
    Be sure to include any instructions for screen termination, potting requirements, and/or cable strain relief.

  6. Do you require custom functionality?
    If you have any specific requirements, such as electromagnetic compatibility (EMC) filters or printed circuit board (PCB) mounting, make sure they are included in your design specification.

  7. What are your plating requirements?
    We offer a wide range of in-house plating options, including tin, nickel, and hard and soft gold. We can also customize the plating to meet any special requirements. Note that gold-plated solder contacts should either be desoldered before installation or appropriate plating thickness specified, to avoid solder embrittlement.

  8. Are there any environmental factors?
    If your application will be operating in a harsh or hostile environment (exposed to shock, vibration, thermal changes or extreme temperatures, for example) these will need to be factored into the design.

  9. What are the qualification requirements?
    If qualification tests are required, these should be discussed and specified during the design phase. We are able to perform most qualification tests on the appropriate levels of assembly.

  10. What testing will you need?
    Examples include leak testing, pressure testing, and geometrical and electrical testing; including breakdown, voltage, and insulation resistance of finished parts.

  11. Cabling and wiring too?
    If you would like to extend your brief to include your cabling and wiring requirements, we can address those as well.
How to Order

Insert Arrangements

Straight PCB Footprints

2M801 Dimensions

2M803 Dimensions

Flange Mount and Jam Nut 

2M804 Dimensions

2M805 Dimensions

2M Hermetic Catalog Section
2M Hermetic Connectors offer superior sealing in a smaller and lighter package while offering the same durability of MIL-DTL-38999 connectors.
Hermetic Solutions Catalog
Hermetic connectors are essential to maintain system integrity in applications where the reliability and performance of electrical connectors are critical, such as gas-tight barriers or areas with high-pressure differentials.
2M Micro38999 Catalog
The 2M Micro38999 Connector Series product line is designed for interconnect applications requiring high performance and reduced size and weight.
2M Filters
The versatility of standard 2M connectors with EMI protection to meet the demands of your application.
2M Accessories
Complete line of accessories for all 2M connectors
Amphenol Advantage IconComplementary External Product Electro-Mechanical Integration
Electro-Mechanical Integration
Building complex assemblies requires a robust quality system, strong engineering support, and world class operators.
Amphenol Advantage IconComplementary External Product Flex/Rigid Flex
Flex/Rigid Flex
Flex and rigid-flex circuitry offer many advantages when considering the most effective means to transmit signals or power within your system.
Amphenol Advantage IconComplementary External Product Advanced Assemblies
Advanced Assemblies
Large format, high component count, complex assemblies for the aerospace and communication industries that require surface mount, thru-hole or press-fit assembly processes.
Amphenol Advantage IconComplementary External Product Pressure Sensors
Pressure Sensors
Use piezoresistive technology for its sensor signal processing to measure pressure.
Amphenol Advantage IconComplementary External Product Aerospace Sensors
Aerospace Sensors
An array of standard and customized sensing solutions to provide the most reliable and accurate performing solutions for the most stringent of Aerospace applications.
Is FAI Required?
Have you ordered from us before?

Part Number
Min Qty
Max Qty
Target Price
Delivery Date
Add Part