The **YB216CWCKW01-5F-JS** is a high-quality, panel-mounted push-button switch manufactured by **NKK Switches**. It belongs to the YB series and is specifically designed for high-end aesthetic appeal and durability. --- ### 1. Technical Specifications Table | Feature | Specification | | :--- | :--- | | **Manufacturer** | NKK Switches | | **Circuit Type** | DPDT (Double Pole Double Throw) | | **Switch Function** | ON-ON (Latching/Maintained) | | **Current Rating** | 3A @ 125VAC / 3A @ 250VAC | | **Illumination** | LED - Green (5F) | | **Actuator Style** | Round, Flush Mount | | **Cap Material/Color** | Polycarbonate, Silver/Clear (JS) | | **Ingress Protection** | IP65 (Dust-tight and Water-resistant) | | **Termination Style** | Solder Lug | --- ### 2. Breakdown of the Part Number The alphanumeric code describes every physical and electrical characteristic of the component: * **YB2**: Series designation (YB series pushbuttons). * **16**: Represents the electrical capacity and circuit configuration (DPDT). * **CW**: Indicates a "Panel Seal" version with a circular mounting nut. * **CK**: Designates the "Flush Mount" housing style. * **W01**: Indicates Silver Contacts (rated for power applications). * **5F**: Specifies the LED voltage/color. In this case, it is a **Green LED**. * **JS**: Refers to the cap type—a Metallic Silver insert with a Clear lens. --- ### 3. Key Electronic Features #### A. DPDT Switching (Double Pole Double Throw) This switch controls two separate circuits simultaneously. Because it is an **ON-ON** (Latching) switch, it stays in the depressed position after being pushed and returns only after being pushed again. This is ideal for power toggles. #### B. Integrated LED Illumination The "5F" designation indicates a Green LED. This LED is independent of the switch circuit, allowing it to be wired as: 1. **Always On:** To act as a pilot light. 2. **Switched On:** To indicate that the device is currently active. #### C. IP65 Rating The "CW" part of the code means it is supplied with an O-ring. This makes the front panel **IP65 rated**, protecting the internal electronics from dust and low-pressure water jets, making it suitable for industrial or outdoor panels. #### D. Solder Lug Terminals The rear of the switch features epoxy-sealed solder lugs. This prevents flux or contaminants from entering the contact area during the soldering process. --- ### 4. Connection Diagram (Simplified) ```text TERMINAL SIDE VIEW ------------------------ | (L+) [LED] (L-) | <-- LED Power | | | (1) (4) (7) | <-- Common Pins | (2) (5) (8) | <-- NO (Normally Open) | (3) (6) (9) | <-- NC (Normally Closed) ------------------------ ```