The **47DM-101A-R** is a specific type of electronic component, typically categorized as a **DIP (Dual In-line Package) Switch**. These components are widely used on printed circuit boards (PCBs) to manually configure settings or select operating modes for electronic devices. --- ### 1. General Specifications The part number follows a standard nomenclature used by manufacturers like **Dailywell** or similar switch specialists. | Feature | Specification | | :--- | :--- | | **Type** | DIP Switch | | **Actuator Style** | Raised or Recessed Slide | | **Number of Positions** | 1 (Single Pole Single Throw - SPST) | | **Pitch** | 2.54mm (0.1 inch) - Standard Breadboard Pitch | | **Mounting Type** | Through-Hole (THT) | | **Contact Plating** | Usually Gold-plated (for reliability) | | **Color** | Red or Blue housing (standard) | --- ### 2. Key Characteristics * **Mechanical Life:** Designed for high durability, often rated for 2,000 to 5,000 cycles. * **Seal Integrity:** The "-R" suffix often indicates **RoHS Compliance** (Restriction of Hazardous Substances) or, in some manufacturer catalogs, a specific **Tape/Reel** or **Recessed** actuator variant. * **Switching Capacity:** Usually rated for low voltage/current (e.g., 25mA at 24VDC). --- ### 3. Internal Circuitry The device functions as a simple mechanical bridge. When the slider is moved to the "ON" position, it completes the circuit between the two pins. ```text [ Top View ] +-----------+ | --- | <-- Slider | | ON| | +-----------+ | | Pin 1 Pin 2 (Connected when ON) ``` --- ### 4. Common Applications * **Industrial Controls:** Setting Modbus or CAN bus node addresses. * **Consumer Electronics:** Garage door opener frequency coding. * **Computing:** Configuring Master/Slave settings on legacy hardware. * **Prototyping:** Used on development boards to toggle pull-up/pull-down resistors. ---