MIL-DTL-38999 Series I, II, and III Connectors, 38999 Derivatives, and Custom Accessories
The Original MIL-SPEC Connectors for Modern Harsh Environments
Amphenol was one of the initial developers of MIL-DTL-38999 when the specification was developed in the 1970s. It was then that the Scintilla division of the Bendix Corporation, later incorporated into Amphenol Aerospace, was a key player in the development of MIL-C-38999, which evolved into MIL-DTL-38999 Series I. Bendix also developed the low-profile Bendix JT connectors that became standardized as MIL-DTL-38999 Series II and was instrumental in the development of MIL-DTL-38999 Series III.
The breakthroughs in miniaturization, high-density contact arrangements, and environmental sealing achieved through these connectors became industry-standard features in interconnect technology that are used throughout high-performance military and aerospace applications to this day. Our MIL-SPEC Qualified Connectors, including MIL-DTL-38999 Series I, Series II, and Series III; MIL-DTL-26482 Series II; MIL-DTL-83723; MIL-DTL-5015; and MIL-DTL-22992 Class L connectors, are designed to meet the most rigorous standards for performance and reliability in harsh environments.
With a major role in the development of modern interconnect systems, Amphenol circular MIL-SPEC connectors have been trusted to deliver harsh environment connectivity solutions for mission-critical systems for decades.
Mil-Spec Derivatives
Printed Circuit Board Connectors
High Speed
EMI/EMP Filter Protection
Hermetic/Sealed
Lanyard Release / Quick Disconnect Connectors
Custom Designs and Accessories
38999 Plus Offers Endless Options
This includes, but isn’t limited to:
Options |
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EMI Filter Connectors |
Our Filter Connectors are optimized for electromagnetic interference (EMI) shielding and radio frequency interference (RFI) shielding and are based on the most popular MIL-SPECs: D38999 Series I, II, III; 26482; 5015; and 2M Micro 38999. We also build Filter Adapters for retrofitting existing systems with EMI/RFI shielding, as well as Transient Voltage Suppression (TVS) Diode Connectors and Metal Oxide Varistor (MOV) Connectors for protection against EMP and transient voltage events |
Hermetic Connectors |
Our Hermetic and Sealed Connectors are available in the same MIL-SPECs, with numerous QPL versions. Amphenol hermetically sealed connectors feature glass or epoxy seals, offering superior leak-rate performance in a ruggedized package.
Both Filter, Hermetic, and Sealed Connectors come with various customization options, including special shell geometries, printed circuit board (PCB) contacts, and high-speed contacts. |
Miniature and Micro-Miniature Connectors |
Our collection of Miniature and Micro-Miniature Circular Connectors includes the 2M Micro 38999 series, which delivers the performance of a D38999 Series III connector but in a more compact and lighter form. We also offer the Bantam Micro-Bayonet Series, an economical and lightweight option for general-purpose use in commercial aerospace. Our miniature and micro-miniature solutions also include the Multi-Media Ruggedized (MRC) connectors and the Warrior Grip Series, which is specifically designed for soldier-worn systems, including the U.S. Army's Nett Warrior system. |
High Power Options |
Amphenol’s High Power and High Voltage Connectors and Contacts are capable of handling higher currents and voltages for applications that demand extensive power distribution. |
Waterproof Connectors |
Our Aquacon High Pressure Immersible Connectors are thoroughly sealed against water ingress and incorporate 316 stainless steel shells for corrosion resistance. With the ability to withstand 1500 PSI, Aquacon provides a secure waterproof connection for applications facing extensive fluid immersion or hazardous deep ocean environments. Also available in a hermetic option for an airtight seal that provides extra protection. |
Quick Disconnect Connectors |
Our D38999 Breakaway Fail-Safe Connectors feature a highly durable, lightweight non-metallic lanyard designed to enable rapid quick disconnection. Many other Amphenol connectors such as our 2M Micro-Miniature Series and Push-Pull Connectors incorporate quick disconnect features. |
Dualok High-Vibration Connectors |
Our Dualok High Vibration Connectors are enhanced for severe high-vibration environments and exceed MIL-DTL-38999 Series III vibration resistance. |
Bulkhead Feedthrough Connectors |
Our bulkhead feedthrough connectors simplify installations by eliminating discrete wire termination and achieving a secure and reliable power or signal connection through a bulkhead or panel. Also available in a fiber-optic connector configuration. |
Jam Nut Connectors |
Our Jam Nut connectors allow you to save space and weight in your PCB applications due to a reduced flange design, which has a smaller profile than standard jam nut receptacles. |
Extensive Contact Options |
Our MIL-SPEC connectors utilize our complete line of crimp, solder, printed circuit tail (PC tail), printed circuit board (PCB), and compliant pin contacts from size 0 to size 22D. |
Connector Savers |
Protect your connectors from the wear and tear of repeated mating and extend their service life with our 38999 Connector Savers. |
RoHS-Compliant Plating |
Environmentally friendly, cadmium-free plating finishes that meet ROHS compliance include gold, electroless nickel, stainless steel, black zinc nickel, our new AP-93 plating, and more. |
Accessories and Custom Options |
We carry a large selection of Accessories and Custom Options for our entire catalog of circular connectors including 38999 integral accessory features, backshells, strain reliefs, caps, and dummy receptacles. |
MIL-SPEC Connector Derivatives
Amphenol doesn’t just offer connectors within standard MIL-SPEC boundaries; customization beyond MIL-SPEC standards to craft any interconnect solution to meet your unique needs is available through our 38999 Plus catalog. Whether it’s power connectors, signal connectors, or high-speed connectors, 38999 Plus presents a massive inventory of MIL-SPEC styles and options to overcome any interconnect challenges.
Applications
- Military Aircraft
- Commercial Aircraft
- Naval Surface Ships
- Submarines
- Ground Vehicles
- Missile Systems
- Unmanned Vehicles
- Electric Military Vehicles
- Satellites
- Spacecraft
- Avionics Systems
- In-Flight Entertainment Systems
- Landing Systems
- Environmental Control Systems
- Fuel Management Systems
- Refueling Systems
- Power Distribution Systems
- Aircraft Braking Systems
- Communication Systems
- Cabin and Exterior Lighting
- Battery Management Systems