The **YB215CWCKW01-6B-JB** is a high-quality, panel-mounted push-button switch manufactured by **NKK Switches**. It belongs to the YB series, which is known for its modular design, tactile feedback, and diverse illumination options. ### 1. Part Number Breakdown Understanding the specific electronic and mechanical properties requires decoding the manufacturer's suffix system: | Segment | Code | Description | | :--- | :--- | :--- | | **Series** | YB | Standard YB Series Pushbutton | | **Actuator** | 2 | Square Shape (Standard) | | **Circuit** | 15 | SPDT (Single Pole Double Throw) | | **Function** | CW | ON-(ON) Momentary Action | | **Sealing** | CK | CULus Recognized / IP65 Rated (Dust/Water resistant) | | **Contact Material** | W | Silver Contacts (Power rated) | | **Terminals** | 01 | Solder Lug Terminals | | **Illumination** | 6B | White High Brightness LED (6V) | | **Cap/Lens Color** | JB | Clear Lens with White Insert | --- ### 2. Key Electronic Specifications This component is designed for both signal-level and power-level switching. * **Electrical Capacity:** 3A @ 125V AC or 3A @ 250V AC. * **Contact Resistance:** 50 milliohms maximum. * **Insulation Resistance:** 200 megohms minimum @ 500V DC. * **Dielectric Strength:** 1,000V AC minimum between contacts for one minute. * **LED Voltage:** Typically requires a forward voltage (Vf) of approximately 2V to 3.5V depending on the resistor configuration, but the "6B" indicates an internal resistor for 6V DC operation. --- ### 3. Mechanical & Environmental Features The "CWCK" designation indicates this part is built for harsher environments compared to standard indoor switches. * **Ingress Protection:** **IP65 Rated**. This means the front panel is protected against dust and low-pressure water jets (splash-proof). * **Operating Force:** 1.5 Newtons (provides a crisp tactile "click"). * **Mechanical Life:** 1,000,000 operations minimum. * **Mounting Type:** Panel mount with a D-flat bush to prevent rotation. --- ### 4. Circuit Diagram (SPDT) The switch operates as a Single Pole Double Throw (SPDT) with momentary action. ```text Terminal 1 (NC) ----| |---- Common (Terminal 2) Terminal 3 (NO) ----| * LED Terminals are separate (Anode/Cathode) ``` ---