## B3W-9000-R2C Electronic Component Overview The **B3W-9000-R2C** is a high-quality, illuminated tactile switch manufactured by **Omron Electronic Components**. This specific part belongs to the B3W-9 series, which is designed for applications requiring compact, reliable switching with integrated visual feedback. ### 1. Key Technical Specifications | Feature | Specification | | :--- | :--- | | **Switch Type** | Tactile Switch (Momentary) | | **LED Color** | Single Red (High Brightness) | | **Cap Type** | Square (12mm x 12mm) | | **Actuation Force** | 1.57 N {160 gf} | | **Contact Form** | SPST-NO (Single Pole, Single Throw - Normally Open) | | **Switching Capacity** | 1 to 50 mA, 5 to 24 VDC | | **Mechanical Life** | 300,000 operations minimum | | **Mounting Type** | Through-hole (PCB) | --- ### 2. Internal Structure and Mechanics The device integrates two primary electronic functions into a single housing: * **The Switch Mechanism:** Utilizes a snap-action contact dome that provides a crisp "click" sensation (tactile feedback) to the user when the circuit is closed. * **The LED Circuit:** The LED is electrically independent of the switch circuit. This allows designers to program the LED to stay on, blink, or turn on only when the button is pressed. * **Diffusing Cap:** The R2C variant includes a specific cap design that ensures even distribution of the red light across the surface of the button. --- ### 3. Pinout and Circuit Layout The component generally features 6 pins: 4 for the switch (internally connected in pairs for stability) and 2 for the LED. ```text Pin 1 & 2: Switch Contact A Pin 3 & 4: Switch Contact B Pin 5: LED Anode (+) Pin 6: LED Cathode (-) ``` --- ### 4. Common Applications * **Industrial Controls:** Status indicators for machinery. * **Consumer Electronics:** Power buttons or mode selectors. * **Medical Equipment:** Interface buttons requiring high reliability and visibility. * **Test & Measurement:** Integrated reset or start buttons. ---