Connectors for harsh environments

38999-type, subsea, hermetic, high-temperature, high-voltage and Micro-D connectors — designed and made in our own factory in Shenyang, China, since 1957.

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  • 23 product families
  • 94 series with full specifications
  • Since 1957 in-house manufacturing
Subsea rubber-molded connectors, 38999-type receptacle and hermetic connectors

Product families

J599 Series III square-flange receptacle, jam-nut receptacle and plugs

38999-Type Circular Connectors

38999-type circular connectors in all four coupling styles — bayonet (Series I), low-profile bayonet (Series II), threaded (Series III) and quarter-turn (Series IV) — plus hermetic, double-flange PCB and IP67 waterproof versions.

J599S5 square-flange receptacle and plug with blue colour bands

Miniature Circular Connectors

Smaller, lighter circular connectors: 38999 Series III-type miniatures, lightweight micro circular XY2, IP67 push-in XY1 and subminiature J599S and JYS.

PBH push-pull plug and cable receptacle

Push-Pull Circular Connectors

Circular connectors that mate and unmate with a straight push and pull — PBH push-pull and XY1 push-in IP67 miniatures.

HMS31 MIL-DTL-5015 type threaded plug and square-flange receptacle

Industrial Circular Connectors

MIL-DTL-5015-type circular connectors for rail vehicles, machine tools and industrial power — threaded and reverse-bayonet, IP65 and IP67, contacts up to 150 A.

SHX33 rubber-molded underwater cable plug and bulkhead receptacle with red rubber body

Subsea & Underwater Connectors

Rubber-molded connectors rated to 7000 m, metal-shell and glass-sealed connectors, load-bearing and hybrid connectors, and watertight cable assemblies.

CT-M glass-sealed hermetic receptacles, round-flange and square-flange

Hermetic Connectors

Glass-sealed and hermetic receptacles that keep gas and moisture out of sealed equipment — 38999-type, 26482-type, bulkhead feed-through and miniature designs.

GRT stainless-steel high-temperature connectors and receptacles

High-Temperature Connectors

Circular connectors for hot zones — up to +500 °C — and thermocouple connectors with compensating-alloy contacts.

38999 Series III-type filter connector receptacle, filter insert and planar filter array

EMI Filter Connectors

38999-type connectors with a low-pass filter or transient suppression in every contact — EMI/RFI and surge protection at the enclosure wall.

J599E8 expanded-beam fiber-optic plug and receptacle

Fiber Optic & Hybrid Connectors

Connectors that carry optical fiber alongside power and signal — 38999-type fiber and hybrid connectors, and subsea optical-electrical hybrids.

J30J metal-shell Micro-D plug and receptacle with pre-wired leads

Micro-D Connectors

1.27 mm pitch rectangular connectors with gold-plated twist-pin contacts — metal-shell, stainless-steel, high-speed and pre-wired versions.

J7245 Nano-D connector mounted on a printed circuit board

Nano-D Connectors

0.635 mm pitch ultra-miniature connectors with twist-pin contacts, for the tightest spaces on boards and in harnesses.

SYRM 1.905 mm pitch rectangular PCB connectors

Rectangular Connectors

Rectangular board-to-board and board-to-cable connectors for rugged electronics — 55302 type, DIN 41612 type, mixed power, zero insertion force and modular.

VPX rugged backplane connectors

Backplane Connectors

VPX hybrid and VITA 46 high-speed backplane connectors for rugged embedded computing — differential, RF, fiber and power in one interface.

FBG flameproof square-flange receptacle

Explosion-Proof Connectors

Flameproof and increased-safety circular connectors for oil, gas, chemical and offshore hazardous areas, with Ex component certificates to GB 3836.

LTK-T liquid-cooling quick connector plug and square-flange receptacle

Liquid Cooling Connectors

Push-pull bayonet fluid connectors that connect liquid-cooling modules and pipework in rugged electronics, with double seals and low spillage.

POGO spring-pin connector with three spring pins

Pogo Pin Connectors

Spring-loaded pin connectors with zero insertion force and 10,000-cycle life, designed to your layout.

NPT-sealed high-current feedthrough stud with copper stud and nuts

Electrical Feedthroughs

Sealed power feedthroughs that carry 105 to 1000 A through vacuum chambers and pressure vessels — NPT-sealed, O-ring sealed and custom designs.

Energy-storage power harness with high-power connectors and orange cable

Cable Assemblies

Cable assemblies and harnesses built around our own connectors, from samples to series production.

J1784 straight cable-clamp, 90° cable-clamp and 90° shielded backshells

Backshells & Accessories

Backshells and caps that complete a 38999-type connector: strain relief, shield termination and protection for unmated connectors.

Why engineers work with us

Specifications you can design with

Every series page publishes ratings, ordering codes and insert arrangements — no login, no request needed.

Made in our own factory

Shells, contacts and insulators are machined, moulded and plated in-house in Shenyang, where we have built connectors since 1957.

Customized to your equipment

Contact counts, cable lengths, materials and finishes are all configurable; new designs are built to your drawing.

Samples before series production

Configuration and quotation, samples built to order, third-party testing on request, then series production.

Applications

Selection guides

Practical notes on 38999 series, subsea depth ratings, sealing, contact current and more — all guides.

How we work with you

From sample to production

  1. Send your requirement

    Part number, drawing, pin-out or a short description of your application.

  2. Configuration and quote

    Our engineers match the configuration and reply with a drawing and quotation.

  3. Samples

    Samples are made to your order. Third-party testing to your specification is available on request.

  4. Your approval

    You test the samples in your own equipment and approve them.

  5. Series production

    Production follows the approved sample configuration.

Need a quote or a drawing?

Send your part number, pin-out or drawing. An engineer will reply by email.

Request a quote