The **JN2FS04FK1-R** is a high-performance, waterproof circular connector manufactured by **JAE (Japan Aviation Electronics)**. It belongs to the **JN2 Series**, which is specifically designed for industrial applications requiring durability and space-saving designs. --- ### ## Technical Specifications Below are the primary electronic and physical characteristics of the component: | Feature | Specification | | :--- | :--- | | **Connector Type** | Circular Plug (Straight) | | **Number of Positions** | 4 Pins | | **Termination Method** | Solder | | **Rated Current** | 5A per contact | | **Rated Voltage** | 200 VAC | | **Waterproof Rating** | IP67 (when mated) | | **Coupling Mechanism** | One-touch push-twist lock | | **Shell Material** | Synthetic Resin (High strength) | | **Operating Temperature** | -20°C to +125°C | --- ### ## Key Electronic Features #### 1. One-Touch Locking Mechanism The connector features a user-friendly "push-to-click" locking system. This ensures a secure electrical connection even in high-vibration environments, preventing accidental disconnection. #### 2. Environmental Protection (IP67) The "FK" designation indicates that the connector is waterproof and dustproof. When mated, it can withstand immersion in water up to 1 meter for 30 minutes, making it ideal for outdoor or wash-down industrial environments. #### 3. Compact and Lightweight Because the shell is constructed from high-grade synthetic resin rather than heavy metal, it reduces the overall weight of the cable assembly without sacrificing structural integrity. #### 4. Safety and Grounding In many configurations of the 4-pin JN2 series, one pin is specifically designed to be a "First-to-make, Last-to-break" ground contact, protecting the electronic circuits from static or surges during mating. --- ### ## Common Applications * **Industrial Robotics:** Connection for sensors and small actuators. * **Machine Tools:** Control panels and power supply lines. * **Medical Equipment:** Portable devices requiring robust circular interfaces. * **Telecommunications:** Outdoor base station equipment. --- ### ## Pinout and Assembly Note When soldering the JN2FS04FK1-R, it is critical to use heat-shrink tubing or the appropriate backshell accessories to maintain the IP67 rating. The **"FK1"** variant typically refers to a specific cable exit diameter range; ensure your cable outer diameter (OD) matches the bushing size to maintain the waterproof seal.