The **YB226CWCKG01-5F-JS** is a high-quality, illuminated pushbutton switch manufactured by **NKK Switches**. It belongs to the YB2 Series, which is known for its compact design and high reliability in panel-mount applications. --- ### 1. Technical Specifications | Feature | Specification | | :--- | :--- | | **Manufacturer** | NKK Switches | | **Circuit** | DPDT (Double Pole Double Throw) | | **Switch Function** | ON-ON (Alternate Action/Latching) | | **Contact Rating** | 0.4VA Max @ 28V AC/DC (Logic Level) | | **Illumination** | LED (Green) | | **Actuator Type** | Round, Flush Mount | | **Panel Cutout** | 16mm Diameter | | **Termination Style** | Solder Lug | | **Ingress Protection** | IP65 (Dust Tight, Water Resistant) | --- ### 2. Breakdown of the Part Number To understand the electronic components of this specific model, we can decode the nomenclature: | Code Segment | Description | | :--- | :--- | | **YB2** | Series name (16mm Panel Cutout) | | **26** | DPDT (Double Pole Double Throw) Circuit | | **CW** | Special "Splashproof" / "Tamper Resistant" bezel design | | **CK** | Silver contacts with Gold plating (best for low-power logic) | | **G** | Gold contact material (0.4VA rating) | | **01** | Solder Lug terminals | | **5F** | LED Color: **Green** | | **JS** | Cap/Diffuser Style: Silver/Gray Cap with LED insert | --- ### 3. Key Electronic Characteristics #### A. Logic Level Performance Unlike standard power switches, this model uses **Gold-plated contacts**. This makes it ideal for "Logic Level" applications (low voltage and low current), as the gold prevents oxidation and ensures signal integrity for microcontrollers or PLCs. #### B. DPDT Configuration This switch features a **Double Pole Double Throw** configuration. This means it controls two separate circuits simultaneously. When the button is pressed: 1. Circuit A toggles from its Normally Closed (NC) to Normally Open (NO) state. 2. Circuit B toggles identically. 3. Because it is **Alternate Action**, the switch stays in the new position until pressed again (Latching). #### C. Integrated Illumination The "5F" designation indicates a Green LED. The LED is electrically independent of the switch contacts, meaning you can wire the light to be "Always On" or to only light up when the switch is activated. #### D. Environmental Sealing The **CW** designation and **IP65 rating** indicate that the front of the switch is protected against water jets and dust, making it suitable for industrial control panels or outdoor-exposed kiosks. ---