The **RV2-50VR47MU-R** is a specific part number for a surface-mount (SMT) Aluminum Electrolytic Capacitor. These components are primarily used for energy storage, filtering, and decoupling in electronic circuits where space is at a premium. --- ### 1. Technical Specifications Based on the standard naming conventions for electronic components (likely manufactured by brands like **Elna** or **ELNA America**), here is the breakdown of its specifications: | Parameter | Specification | Description | | :--- | :--- | :--- | | **Type** | Aluminum Electrolytic | Uses an electrolyte liquid/gel for high capacitance. | | **Mounting Type** | SMD/SMT | Designed for automated "pick and place" assembly. | | **Capacitance** | 0.47 µF | The amount of electrical charge it can store. | | **Voltage Rating** | 50V | The maximum continuous DC voltage it can handle. | | **Tolerance** | ±20% (M) | The allowable deviation from the nominal capacitance. | | **Series** | RV2 | Indicates a standard vertical chip type (85°C rated). | | **Packaging** | Tape & Reel (-R) | Provided on a reel for high-speed manufacturing. | --- ### 2. Part Number Deciphering To understand the component better, we can break down the alphanumeric code: * **RV2**: Series name (Vertical Chip type, general purpose). * **50**: Rated Voltage (50 Volts). * **V**: Voltage Code. * **R47**: Capacitance value (R acts as a decimal point, so 0.47µF). * **M**: Tolerance code (±20%). * **U**: Case size/Dimension code. * **-R**: Packaging suffix (Reel). --- ### 3. Key Characteristics and Applications * **Size:** As a "Vertical Chip" (V-Chip), it has a small cylindrical body sitting on a square plastic base. * **Temperature Range:** Typically rated for operation between **-40°C and +85°C**. * **Polarity:** Like most electrolytic capacitors, this is a **polarized** component. The negative terminal is usually marked with a black stripe on the top of the casing. * **Usage:** * **Coupling/Decoupling:** Blocking DC while allowing AC signals to pass. * **Filtering:** Removing noise from power supply lines in consumer electronics. * **Timing Circuits:** Used in circuits where a specific discharge rate is required. --- ### 4. Comparison with Alternatives | Feature | RV2 (Electrolytic) | Ceramic (MLCC) | | :--- | :--- | :--- | | **Stability** | Moderate | High | | **Polarity** | Polarized (Must be correct) | Non-polarized | | **Cost** | Low for high voltage | High for high voltage | | **Lifetime** | Limited (Electrolyte dries out) | Very Long |