The **W5MS-BC-R/K** refers to a high-quality, professional-grade **waterproof connector system**, typically manufactured by brands like **Chogori**. These connectors are widely used in industrial automation, LED lighting, and marine electronics due to their "Bayonet" locking mechanism and environmental protection. --- ### 1. Key Technical Specifications | Feature | Specification Details | | :--- | :--- | | **Series** | Middle Series (W5) | | **Locking Type** | Bayonet (1/4 turn to lock/unlock) | | **Connector Type** | Field Installable / Panel Mount options | | **Contact Gender** | Male/Female (Indicated by R/K suffix) | | **Current Rating** | Typically 5A to 15A (depending on pin count) | | **IP Rating** | IP67 / IP68 (Dust-tight and waterproof) | | **Material** | Nylon + GF (Housing), Gold-plated Copper Alloy (Contacts) | --- ### 2. Breakdown of the Part Number Components * **W5**: Represents the series size (Middle size). * **MS**: Usually denotes the body style (e.g., Male Socket or specific mounting configuration). * **BC**: Refers to the **Bayonet Coupling** mechanism, which provides a secure, vibration-resistant connection. * **R / K**: These are typically gender or orientation indicators: * **R**: Often signifies a "Plug" or "Receptacle" configuration. * **K**: Often signifies the specific keyway or contact type (e.g., Solder or Screw terminal). --- ### 3. Electronic & Mechanical Features #### A. Environmental Protection The "BC" series is designed for harsh environments. The internal O-rings and gaskets prevent water ingress even when submerged (IP68), making it ideal for outdoor electronics. #### B. Contact Materials The pins are generally made of a **Copper Alloy with Gold Plating**. This ensures: 1. **Low Contact Resistance:** Minimal power loss. 2. **Anti-Corrosion:** Prevents oxidation in humid or salty environments. #### C. Safety & Durability * **Flame Retardant:** The plastic shell usually meets **UL94V-0** standards. * **Mating Cycles:** Designed for 500+ cycles of plugging and unplugging without mechanical failure. --- ### 4. Common Applications * **Outdoor LED Displays:** Power and data transmission for large screens. * **Industrial Sensors:** Connecting PLC units to remote sensors in factories. * **Marine Equipment:** GPS, Sonar, and lighting on boats. * **Renewable Energy:** Connections for solar panel monitoring systems. ---