The **M5TS-41-R/BL** is a specific type of industrial-grade illuminated push-button switch, typically manufactured by companies like **MARU** (often used in arcade machines, industrial control panels, and automation). Below is a breakdown of its electronic and physical components. --- ### 1. Technical Specifications The part number indicates a specific configuration regarding the mounting size, action type, and illumination color. | Feature | Specification | | :--- | :--- | | **Mounting Hole Size** | 16mm (Standard M5 Series) | | **Operation Type** | Momentary (Spring return) | | **Contact Configuration** | SPDT (1NO + 1NC) | | **Illumination Color** | Red/Blue (R/BL indicator) | | **Lamp Type** | LED (Standard) | | **Voltage Rating** | Typically 12V or 24V (depending on internal resistor) | --- ### 2. Internal Electronic Parts The switch assembly is composed of several modular electronic components: #### A. The Microswitch (The Logic Core) The "business end" of the unit is a microswitch attached to the base. - **Terminals:** Usually features three pins: **COM** (Common), **NO** (Normally Open), and **NC** (Normally Closed). - **Rating:** Generally rated for 3A to 5A at 125/250VAC. #### B. The LED Module Located inside the translucent plunger: - **Light Source:** High-brightness LED. - **Polarity:** Marked with (+) and (-) terminals. Unlike the switch contacts, these are polarity-sensitive. - **Protection:** Includes a built-in current-limiting resistor so it can be connected directly to the rated DC voltage. #### C. The Actuator Mechanism - **Plunger:** The part you press. In the **R/BL** model, this is usually a split-color or dual-function translucent plastic. - **Spring:** Provides the tactile feedback and ensures the "Momentary" action (returns to top position when released). --- ### 3. Pinout Connection Guide When wiring the M5TS-41-R/BL, you will typically find 5 terminals: | Pin Type | Function | Description | | :--- | :--- | :--- | | **C / COM** | Common | The input power/signal for the switch. | | **NO** | Normally Open | Circuit closes when the button is pressed. | | **NC** | Normally Closed | Circuit opens when the button is pressed. | | **(+) LED** | Anode | Positive power for the illumination. | | **(-) LED** | Cathode | Ground/Negative for the illumination. | --- ### 4. Key Applications * **Arcade Cabinets:** Used for "Start" or "Select" buttons where visual feedback is required. * **Control Panels:** Small-form factor industrial interfaces. * **DIY Electronics:** Popular in Raspberry Pi or Arduino projects due to the integrated LED and 16mm footprint.