The **YB216CWCPG01-12-CB** is a specific part number for a high-quality, illuminated pushbutton switch manufactured by **NKK Switches**. This component belongs to the YB Series, which is known for its compact design and modular options. Below is a detailed breakdown of its electronic and mechanical specifications. --- ### 1. Component Specifications | Feature | Specification | | :--- | :--- | | **Manufacturer** | NKK Switches | | **Switch Type** | Pushbutton (Momentary Action) | | **Circuitry** | DPDT (Double Pole, Double Throw) | | **Contact Rating** | 3A @ 125V AC / 3A @ 250V AC / 3A @ 30V DC | | **Illumination** | LED (Red) | | **Supply Voltage (LED)** | 12V DC | | **Mounting Type** | Panel Mount (16mm hole diameter) | | **Termination Style** | Solder Lug | | **Ingress Protection** | IP65 (Dust tight, water-resistant) | --- ### 2. Breakdown of the Part Number To understand the electronic behavior of this part, we can decode the nomenclature used by NKK: * **YB2**: Series identifier (Compact Pushbutton). * **16**: Circuit configuration (**DPDT** - Double Pole, Double Throw). This means it can control two separate circuits simultaneously. * **CW**: Special "Splashproof" or "Waterproof" designation (IP65 rated). * **CP**: Gold-plated silver contacts (Provides reliability for both power and logic-level switching). * **G01**: Standard term for solder lug terminals. * **12**: Internal LED voltage rating (**12 Volts**). No external resistor is typically required for this specific model if used with a 12V source. * **CB**: Cap and Bezel combination (C = Red LED/Cap color; B = White/Clear lens). --- ### 3. Electrical Characteristics #### Circuit Configuration (DPDT) As a **Double Pole, Double Throw** switch, it has six terminals for the switch function and two additional terminals for the LED. - **Momentary Action:** The switch only remains in the "on" position while it is being pressed. Once released, it springs back to its original state. #### Contact Material The **Gold over Silver** contacts (CP) are versatile. They allow the switch to handle: 1. **High Power:** Up to 3 Amps for standard AC/DC loads. 2. **Low Logic Level:** The gold plating prevents oxidation, making it suitable for low-current digital signals (e.g., PLC inputs or microcontrollers). #### LED Illumination The integrated LED is rated for **12V DC**. It is isolated from the switch contacts, meaning you can wire the LED to be "Always On" to find the switch in the dark, or "Switched On" only when the button is pressed. --- ### 4. Physical Construction - **Bushing:** 16mm diameter, circular. - **Sealing:** Includes an internal o-ring and external rubber washer to meet **IP65** standards, protecting the electronics behind the panel from moisture and dust.