When you need a reliable connection solution for critical marine and offshore applications, the YMC Series Marine Anti-Corrosion Waterproof Electrical Connectors stand out as the industry’s most robust choice. Our advanced connector series combines military-grade sealing with exceptional corrosion resistance, making it perfect for shipboard systems, subsea equipment, and harsh-environment industrial installations. With our deep expertise in high-performance interconnection systems, MXTD delivers proven solutions that meet the most demanding requirements for waterproof, corrosion-resistant, and vibration-stable marine equipment.
Our YMC Series connectors meet enterprise standard Q/21EJ184, engineered for the most demanding marine and offshore applications. Each unit features double-curved wire spring contacts, ensuring reliable electrical connections even in high-vibration, saltwater environments.
The robust design offers impressive sealing performance with 0–50m deep-water sealing after mating, far exceeding standard marine connector capabilities. Every connector includes a corrosion-resistant housing with optional stainless steel, copper alloy, or aluminum alloy construction for enhanced durability.
We offer comprehensive coverage with multiple contact specifications: Φ1.0, Φ1.5, Φ2.0, and Φ3.0mm, supporting rated currents from 5A to 40A. Our termination options feature crimp or solder plug designs and solder socket designs, specifically engineered for compatibility with shipboard and offshore equipment installation requirements.
The YMC Series Marine Anti-Corrosion Waterproof Electrical Connectors are precision-engineered components designed to deliver uninterrupted electrical performance in the most challenging marine environments. Built to meet the stringent requirements of enterprise standard Q/21EJ184, this series integrates a bayonet quick-locking mechanism and a double-curved wire spring contact system—a combination that ensures low contact resistance, high mating stability, and resistance to extreme shock (980m/s²) and vibration (196m/s²).
Engineered for maximum environmental resilience, the YMC Series features a fully sealed structure that achieves 50m deep-water sealing after mating, providing superior protection against seawater ingress. Its five-position orientation pins eliminate misplugging risks in complex shipboard systems, while the anti-slip design prevents accidental disconnection under dynamic loads.
The series offers premium housing materials: stainless steel (passivation treatment for maximum corrosion resistance), copper alloy (nickel-plated), or aluminum alloy (chemical plating for lightweight solutions). This material diversity ensures exceptional corrosion resistance—stainless steel variants withstand 1000 hours of salt spray, while copper alloy models endure up to 500 hours. With four contact sizes (Φ1.0–Φ3.0mm) covering rated currents from 5A to 40A, the YMC Series supports both low-power signal transmission and moderate-power power supply in a single connector.
Flexible installation is a core advantage: the connectors support both pin and hole mounting for plugs and sockets, with crimp or solder termination options for plugs and solder termination for sockets. Whether deployed in shipboard communication systems, offshore platform equipment, or subsea detection devices, the YMC Series guarantees long-term reliability with a mechanical life of 1000 mating cycles.
| Item | Specification |
| Housing Material | Stainless steel (passivated); Copper alloy (nickel-plated); Aluminum alloy (chemical plating) |
| Insulator | Thermoset material |
| Sealing Line & Sealing Ring | Silicone rubber |
| Contacts | Copper alloy (gold-plated) |
| Sine Vibration | Frequency: 10–2000Hz; Acceleration: 196m/s² |
| Shock | Acceleration: 980m/s² |
| Constant Acceleration | 980m/s² |
| Mechanical Life | 1000 mating cycles |
MXTD offers tailored customization for the YMC Series to fit your unique marine application requirements:



Q: What standards do the YMC Series connectors comply with?
A: They strictly comply with JONHON’s enterprise standard Q/21EJ184.
Q: What is the waterproof rating of the YMC Series?
A: The connectors achieve 0–50m deep-water sealing after proper mating, suitable for most underwater and marine applications.
Q: Can aluminum alloy connectors be used in long-term saltwater environments?
A: Aluminum alloy connectors have a 48h salt spray resistance rating, recommended for mild marine environments. For long-term saltwater immersion, we suggest stainless steel or copper alloy variants.
Q: What is the maximum rated current of the YMC Series?
A: The largest contact size (Φ3.0mm) supports a rated current of 40A, suitable for moderate-power applications.
Q: How to prevent misplugging of the connectors?
A: The series is equipped with 5-position orientation pins, ensuring correct alignment and preventing incorrect connections.
Q: What termination options are available for the YMC Series?
A: Plugs support crimp or solder termination, while sockets use solder termination for secure connections.
Q: Can I customize the contact configuration of the connector?
A: Yes, MXTD offers custom contact size combinations, layouts, and current ratings to meet your specific marine system needs.
Ready to discuss your connector requirements? Our technical team is here to help you find the perfect solution for your application.
When you choose our YMC Series Marine Anti-Corrosion Waterproof Electrical Connectors, you're investing in proven technology backed by comprehensive support. Contact us today to learn how we can enhance your next project.
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