D38999 Connectors | MIL-DTL 38999 Connectors

Tell us your preference of 38999 connector
Confirm details on your application
Let us know if you have any mechanical interface requirements (bulkhead fitting, custom housing, etc.)
Confirm the best electrical connection – we hermetically seal virtually any conductor or optical fiber

Douglas Electrical Components’ hermetic MIL-DTL-38999 connectors are designed for power, signal, networking, and fiber optic applications across various industries. Its compact and lightweight design, coupled with robust metal housing and various pin counts, offers design flexibility without compromising durability in harsh environments.

We specialize in customizing standard MIL-DTL-38999 connectors and converting them into hermetically sealed assemblies to meet your precise needs. Select from a variety of 38999 series, and trust Douglas to deliver hermetic sealing tailored to your requirements. Our offerings include simple drop-in replacements with integrated pins or terminals, as well as complete wire, cable, or fiber assemblies to streamline installation and integration.

Discover our extensive product range, including Backpotted Connectors (BPC Series), Hermetically Sealed Connector Assemblies (RFW/PFW), Circuit Board Assemblies (CircuitSeal), and Bulkhead Connectors (PotCon). Compatible with 38999 connectors, our PotCon hermetic bulkhead connectors provide plug-to-plug, plug-to-wire, and plug-to-receptacle interfaces, simplifying installation through various mechanical interfaces like threads, flanges, and O-ring seals.

Start Designing

To get started with your custom hermetic 38999 connector solution, provide us with information about the connector you’d like to hermetically seal, the desired electrical interface (pins, wires, cables, optical fibers, etc.), and any custom mechanical interface requirements. Trust Douglas Electrical Components for all your hermetic MIL-DTL-38999 connector needs.

FEATURES

Series I, II, III, and IV Circular Connectors for signal, fiber, networking, and power applications customized to your hermetic needs
Choose a standard, Commercial-Off-The-Shelf (COTS) 38999 connector and customize it to the hermetic properties and mounting configuration you need
Tell us your requirements (series, shell type, finish, insert arrangement, contact type, and keying) and combine it with any mechanical or electrical configuration you need
Create lightweight, assemblies with integral wire, cable, or bulkheads as needed
Customize the design regardless of order volume

BACKPOTTING ADVANTAGES

Protects against moisture and dust, but creates a true hermetic seal to a standard leak rate of
< 1X10^-8 cc He/sec.
A back-potted MIL-spec connector can be integrated into a larger cable harness and designed with other hermetic connections.
Simplify installation and reduces potential failure points within the wiring.
Available in different materials
Suitable for OEM applications
Lightweight

What is a hermetic 38999 connector?

A hermetic 38999 connector is a type of electrical connector that is designed for use in applications where it is important to maintain a hermetic seal. A hermetic seal is a barrier that prevents the exchange of gases or liquids between the inside and outside of an enclosure, and is often used to protect components or devices from external factors such as moisture, dust, or contamination. The MIL-DTL-38999 connector is a specific type of circular connector that is widely used in military and aerospace applications.

What are the different types of hermetic 38999 connectors?

There are several different types of hermetic 38999 connectors available, including standard, high-density, and high-speed connectors. Standard hermetic 38999 connectors are designed for general-purpose applications and have a moderate density of contacts. High-density hermetic 38999 connectors are designed for applications where space is limited and a large number of contacts are required. High-speed hermetic 38999 connectors are designed for applications where high-speed data transmission is required and have special features to improve signal integrity. Douglas Electrical can integrate virtually any option including optical fiber connectors into a hermetic assembly or as a backpotted connector.

Does Douglas Electrical Components manufacture the 38999 connector?

No. We source standard D38999 connectors from the most trusted sources in the industry to meet MIL-DTL38999 standards. We then design using non-hermetic connectors to encapsulate the electrical termination in low out-gassing epoxy to hermetically seal it.

What types of terminations are available?

Our epoxy grants us design flexibility to terminate a variety of types of electrical connections to the D38999 connector including pins, terminals, and wires. For fiber connections, we can integrate fiber cable assemblies directly to the connector, protecting the termination.

Can you offer this for any other MIL-spec connectors?

Yes. Douglas Electrical Components has been servicing the MIL/Aero industry for decades, hermetically sealing MIL-spec connectors for land, sea, and air applications. We are ITAR registered to support military programs.

Popular series include: