The **YB226CWCPG01-5F-JS** is a high-quality, panel-mounted push-button switch manufactured by **NKK Switches**. It belongs to the YB2 series, specifically designed for applications requiring a tamper-resistant, flush-mount, and illuminated interface. --- ### 1. Part Number Breakdown Understanding the electronic specifications through its nomenclature: | Code Segment | Description | Specification | | :--- | :--- | :--- | | **YB2** | Series Name | 22mm Diameter Panel Cutout | | **26** | Circuit Configuration | DPDT (Double Pole Double Throw) | | **CW** | Mounting Type | Panel Mount, Splashproof (IP65) | | **CP** | Switch Action | Momentary (On) - Spring return | | **G** | Contact Material | Gold Contacts (Logic Level) | | **01** | Terminals | Solder Lug | | **5F-JS** | Illumination | Green LED with Silver Bezel / Clear Cap | --- ### 2. Key Electronic Specifications The "G" in the part number signifies that this switch is designed for **low-energy logic level circuits**. * **Contact Rating:** 0.4VA maximum @ 28V AC/DC maximum. * **Circuitry:** **DPDT**. This allows the switch to control two separate circuits simultaneously. * **Operating Force:** 1.5 Newtons (Standard touch sensitivity). * **Mechanical Life:** 1,000,000 operations minimum. * **Electrical Life:** 200,000 operations minimum. * **Insulation Resistance:** 1,000 Megohms minimum @ 500V DC. --- ### 3. LED & Illumination Characteristics The **5F** suffix denotes the specific LED configuration used for the backlight. * **LED Color:** Green. * **Forward Voltage ($V_f$):** Typically 2.1V (Requires a series resistor if used with 5V, 12V, or 24V power supplies). * **Forward Current ($I_f$):** 20mA (Recommended). * **Cap Style:** Flat, clear cap with a green filter to diffuse light evenly across the surface. --- ### 4. Physical & Environmental Construction * **Sealing:** Rated **IP65** (Dust-tight and protected against water jets). This makes it suitable for industrial control panels or outdoor kiosks. * **Panel Cutout:** 22mm (Standard large-format size). * **Material:** The housing is typically made of Polyamide (UL94V-0 rated), ensuring high flame resistance. * **Terminals:** Solder lugs, which provide a secure mechanical and electrical connection for wiring harnesses. --- ### 5. Typical Application Wiring Because this is a **Momentary DPDT Gold-Contact** switch, it is most often used as an input device for: 1. **PLC Inputs:** Sending a "start" or "reset" signal to a controller. 2. **Microcontrollers:** Interfacing with 3.3V or 5V logic systems (Gold contacts prevent oxidation at low voltages). 3. **Safety Interlocks:** Monitoring the state of two independent systems at once.