## Electronic Component Overview: YB216CWCKW01-5D-JB The **YB216CWCKW01-5D-JB** is a high-quality, illuminated pushbutton switch manufactured by **NKK Switches**. It belongs to the YB series and is specifically designed for panel-mount applications requiring durability and clear visual feedback. --- ### 1. Technical Specifications | Parameter | Specification | | :--- | :--- | | **Manufacturer** | NKK Switches | | **Switch Type** | Pushbutton (Illuminated) | | **Circuitry** | DPDT (Double Pole Double Throw) | | **Switch Function** | On-On (Alternate Action / Latching) | | **Current Rating** | 3A @ 125V AC / 3A @ 250V AC | | **Voltage Rating (DC)** | 3A @ 30V DC | | **Illumination Source** | LED (Amber) | | **Voltage (LED)** | 2.0 VDC (requires external resistor) | | **Mounting Type** | Panel Mount, Front (Threaded 16mm) | | **IP Rating** | IP65 (Dust Tight, Water Resistant) | --- ### 2. Part Number Breakdown Understanding the nomenclature helps identify the physical and electrical characteristics: * **YB216**: Series identifier (16mm diameter, square or round options). * **CW**: Splashproof/Dust-tight (IP65) with a circular bezel. * **CK**: Latching/Alternate action (stays down when pressed). * **W01**: Silver contacts (Standard power rated). * **5D**: LED illumination color (5 = LED, D = Amber). * **JB**: Cap/Filter color (Clear lens with White filter). --- ### 3. Key Features 1. **Latching Mechanism**: Unlike momentary switches, this "On-On" switch stays in its actuated position until pressed again, making it ideal for power toggles. 2. **DPDT Configuration**: Allows the control of two separate circuits simultaneously. It can be used to switch both the positive and negative lines or control two different devices. 3. **Environmental Sealing**: The "CW" designation indicates it is built to resist moisture and dust, suitable for industrial or outdoor-exposed panels. 4. **Tactile Feedback**: Provides a crisp, "clicky" actuation to confirm the switch has been engaged. --- ### 4. Circuit Diagram (Internal) ```text DPDT Configuration ------------------------ (Common) 1 o----o 2 (NC) | o 3 (NO) (Common) 4 o----o 5 (NC) | o 6 (NO) (LED +) (+)--[LED]--(-) (LED -) ``` ---