The **YB216CWCKW01-5D-EB** 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 flexibility. --- ### 1. Part Number Breakdown Understanding the electronic specifications requires decoding the manufacturer's nomenclature: | Code Segment | Meaning | Detailed Specification | |:---|:---|:---| | **YB** | Series | YB Series Pushbutton Switches | | **2** | Pole | DPDT (Double Pole, Double Throw) | | **16** | Circuitry/Action | ON-ON (Latching/Maintained) | | **CW** | Seal Type | Panel Seal (IP65 Rated) | | **CK** | Body Type | Rectangular Mounting, Bushing Mount | | **W01** | Contact Material | Silver Contacts (Rated for Power) | | **5D** | LED Color | Amber LED (2V to 2.8V typical) | | **EB** | Cap Type/Color | Rectangular Cap, Yellow Insert with White Diffuser | --- ### 2. Key Electronic Specifications This switch is designed to handle both signal and power-level applications. * **Electrical Capacity:** * 3A @ 125V AC * 3A @ 250V AC * 3A @ 30V DC * **Contact Resistance:** 50 milliohms maximum. * **Insulation Resistance:** 200 megohms minimum @ 500V DC. * **Dielectric Strength:** 1,000V AC minimum between contacts; 1,500V AC minimum between contacts and case. * **Mechanical Life:** 1,000,000 operations minimum (Momentary) or 200,000 (Maintained). --- ### 3. Physical & Environmental Features The "CW" designation indicates that this component is built for harsh or industrial environments. * **Ingress Protection:** **IP65** (Dust-tight and protected against water jets). * **Mounting:** Requires a 16mm (0.630") diameter hole. * **Termination:** Solder Lug (can also be used with quick-connect sockets). * **LED Circuitry:** The LED is independent of the switch circuit, allowing it to be wired as a status indicator or a permanent backlight. --- ### 4. Typical Wiring Example Since this is a **DPDT** switch, it has 6 terminals for the switch and 2 for the LED. ```text Switch Terminals: [1] [2] [3] <-- Pole A (Common, NC, NO) [4] [5] [6] <-- Pole B (Common, NC, NO) LED Terminals: (+) [-] <-- Requires a current-limiting resistor if used above 2.1V DC. ``` ---