M12 bulkhead connectors
straight PG type male cable plug, 90° angled PG type female cable plug, molded female plug.
View productBuilt around the MCIL3F MCBH3M micro circular set, this page pairs the 3-pin female cable connector and male bulkhead seat with the details buyers ask for first: depth rating, materials, pin configuration and batch terms. As an underwater connector manufacturer, Leaka builds the bulkhead shell in 316L stainless steel with a chloroprene rubber insert, rated to a 7000 m working depth and IP69 protection, and supplies it through a wholesale underwater connector program where MOQ, samples and customization are agreed per order. Use the sections below to move from series choice to a written quotation.
Female cable connector plus male bulkhead seat in the 3-pin micro circular series — a harness mating into a panel-mounted receptacle.
Every figure below belongs to this series, so you can check a panel drawing or a harness specification without opening a second document.
| Parameter | Detail |
|---|---|
| Series / format | MCIL3F MCBH3M, 3-pin micro circular; female cable connector + male bulkhead seat |
| Working depth | 7000 m |
| Protection | IP69 watertight |
| Bulkhead shell material | 316L stainless steel |
| Insert material | Chloroprene rubber |
| Contact material | Brass with gold plating |
| Contact block | Teflon body with silver-plated pure copper |
| Cable construction | Polyether seabed cable with aluminium foil shielding |
| Coupling | Threaded |
| Termination | Solder |
| Mating cycles | More than 500 |
| Working temperature | −50 °C to +100 °C |
| Pin configuration | Unified contact design supports 2–21 core configuration |
Each application below points to a fixed feature of the MCIL3F MCBH3M series and the one decision that usually decides the order.
The 3-pin micro circular set carries signal and power across a threaded, solder-terminated joint rated to a 7000 m working depth.
Decide: pin count and whether your harness is soldered in-house or supplied pre-terminated.A 316L stainless steel bulkhead shell with a chloroprene rubber insert is built for continuous immersion and saltwater exposure.
Decide: threaded-hole mounting or lock-nut mounting, based on your panel drawing.The cable-end female connector and bulkhead male seat form a detachable joint that can be re-mated more than 500 times.
Decide: cable length and bend requirements for the polyether seabed cable with aluminium foil shielding.The series is specified from −50 °C to +100 °C and built for deep-sea pressure service, with shell material options beyond 316L where corrosion demands it.
Decide: standard 316L shell or a titanium alloy substitution for your environment.Commercial terms are quoted per series and per order mix rather than published as a flat list, because pin count, cable assembly and documentation change the batch. Here is what each term covers and what we need from you to price it.
Set per series and per order, not per page. A single-series micro circular order and a mixed order of micro circular, M12 and M8 formats can carry different thresholds.
What we need: series, pin count and the split across models.
Samples are released for fit and panel checks before a batch is committed, so a mounting tolerance issue is caught on the bench rather than on a vessel.
What we need: the quantity of samples and your application context.
Tiers exist and are quoted on request. Price steps follow order quantity, the number of series in one shipment, and whether cable assemblies are bundled with the connectors.
What we need: annual forecast and the expected first-order volume.
Timing is confirmed in the written quotation, because stock models and built-to-order harnesses run on different schedules.
What we need: required on-site date and the destination port.
Freight cost and Incoterms are agreed with the quotation so the landed cost is visible before you commit to the batch.
What we need: destination and your preferred Incoterm.
Material and test documentation can travel with the shipment, which keeps procurement and quality records complete on arrival.
What we need: the document list your quality team requires.
Send the series, quantity and mounting drawing in one message and you get a single written quotation back.
Six things can change on this connector family once the series is chosen. Each one has a practical limit worth knowing before you specify it.
Cut and terminated to your assembly drawing, including the polyether seabed cable with aluminium foil shielding.
Solder-terminated harnesses built to your pinout, with the joint protected for immersion service.
The unified contact layout supports 2 to 21 cores, so the count is fixed before tooling rather than after.
316L stainless steel is the standard bulkhead shell; titanium alloy is quoted where corrosion resistance has to go further.
Shell and cable marking are agreed at drawing approval, so the marking matches the rest of your product line.
Material and test documents supplied with the batch for your own quality file and customer handover.
Customization is confirmed on a drawing before production, so the sample you approve is the batch you receive.
Four points cover most of the questions a procurement or quality team raises on a subsea connector order.
The ordering path is quote-based: there is no cart, because pin count, cable build and documentation all sit inside the quotation.
Series, pin count, quantity and the environment the connector works in.
Mounting drawing, cable type, termination and any shell substitution.
Fit the connector on your panel before the batch is released.
Batch build with the material and test paperwork you asked for.
Freight and Incoterms handled on the terms agreed in the quotation.
Keep adjacent product options together for a faster catalog comparison.
straight PG type male cable plug, 90° angled PG type female cable plug, molded female plug.
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We face customers all over the world, specializing in the production of power connectors, signal connectors, heavy duty connector, RJ45 connector, usb
View productreview the product details, images, and specifications presented on the official product page.
use the application and use-case information published on the official product page.
confirm the specifications and options listed for the exact product variant before placing an order.
check the official product page or ask the supplier about options shown for the selected product.
use the official contact or inquiry path provided on the site.
include the product page, intended use, required quantity, and any specifications you need the supplier to review.
