Hermetic D-Sub Connectors

Hermetic D-Sub Connectors & Vacuum Feedthroughs

Reliable Sealed Interconnect Solutions for Vacuum, Pressure, and Harsh-Environment Systems

Our hermetic D-sub connectors and bulkhead vacuum feedthroughs help you pass signals and power through vacuum chambers, pressure vessels, aerospace hardware, and other sealed systems. In this way, you reduce leakage risk, contamination, and unexpected downtime.

We offer two proven sealing technologies. First, we use glass-to-metal sealing for demanding vacuum and ultra-high-vacuum environments. In addition, we use epoxy hermetic sealing for applications that need stronger resistance to mechanical stress and thermal cycling. We can helium leak test each assembly to help ensure stable hermetic performance in critical systems.

As a connector manufacturer serving aerospace, defense, semiconductor, and industrial vacuum markets, we support custom pin layouts, low minimum order quantities, and dependable lead times. Therefore, you can source a cost-effective alternative to imported sealed feedthrough products without sacrificing engineering quality or supply stability.

Why Choose Our Hermetic D-Sub Feedthroughs

Helium Leak-Tested Hermetic Performance

We individually helium leak test every finished connector against your required acceptance criteria. As a result, you protect vacuum integrity and reduce the risk of air, moisture, and contaminant ingress across the bulkhead.

Low-Outgassing Material Options

For vacuum and space-related projects, we support low-outgassing material selection aligned with ASTM E595 screening requirements and NASA outgassing data needs. This makes our feedthroughs suitable for contamination-sensitive systems, thermal vacuum chambers, and satellite hardware.

Rugged Mechanical and Electrical Reliability

We offer hermetic D-sub connectors with stainless steel, titanium, or aluminum alloy shells. We also use gold-plated copper alloy contacts to support stable conductivity. Moreover, the assemblies work well in repeated mating cycles, wide operating temperature ranges, and harsh industrial conditions.

Ready-to-Install Mounting Options

To simplify integration, we supply pre-tested feedthrough assemblies with bulkhead, jam nut, or flange mounting options, including KF, CF, and ISO interfaces. You can also choose pre-terminated harness options to reduce in-house assembly time.

Hermetic D-Sub Connectors Specifications

Product Configurations

Standard Density D-Sub

We offer common shell sizes and contact arrangements for general signal and power transmission.

High Density (HD) D-Sub

We provide higher pin-count options in a compact footprint for systems that need more channels in limited space.

Custom Mixed Combo Layouts

We design custom pin-out configurations that combine signal contacts, power contacts, and shielded RF contacts in one housing. Therefore, you can build a more efficient bulkhead architecture for specialized systems.

Built for Quality and Traceability

We manage production under ISO 9001 and, where required, AS9100 aerospace quality system requirements. In addition, we can include material certificates, compliance documents, and test data with each shipment to support customer QA review and program traceability.

We understand the needs of aerospace, defense, and semiconductor buyers. They need consistent quality, clear documentation, and dependable delivery. That is why we focus on process control and shipment-level traceability.

Typical Applications of Hermetic D-Sub Connectors

Hermetic D-sub connectors and vacuum feedthroughs are widely used in:

• Vacuum chambers and thermal vacuum systems
• Aerospace and satellite hardware
• Semiconductor processing equipment
• Pressure vessels and sealed instrumentation systems
• Laboratory and test environments
• Industrial automation in harsh or sensitive environments

Frequently Asked Questions

What are hermetic D-sub connectors used for?

Hermetic D-sub connectors carry electrical signals and power through vacuum chamber walls, pressure vessel bulkheads, and other sealed interfaces. At the same time, they help maintain environmental isolation.

What sealing technologies do you offer?

We offer glass-to-metal sealed versions for demanding hermetic applications. We also offer epoxy hermetic sealed versions for systems that need added mechanical stress resistance.

Are your bulkhead D-subs compatible with standard mating plugs?

Yes. We can design the mating interface to follow standard D-sub dimensional conventions, depending on the selected shell and mounting style.

Do you offer RoHS and REACH compliant versions?

Yes. We can supply compliance documents according to project and material requirements.

What mounting styles are available?

We support bulkhead weld mount, jam nut panel mount, and flange-based vacuum integration. In addition, we can provide KF, CF, and ISO options where required.

Request Drawing Review & RFQ

No need to redesign your vacuum system around generic catalog feedthroughs. Instead, send us your project requirements for a free drawing review and a manufacturable quotation.

To speed up your RFQ, please include:

• Shell size and pin layout
• Standard density, high density, or mixed combo configuration
• Operating vacuum level and pressure differential
• Continuous temperature range
• Mounting interface requirement
• Target order quantity
• Required delivery timeline
• Special compliance needs such as low-outgassing, AS9100 traceability, or military testing