The part number **RVR-4V331MG68U-R2** refers to a specific Surface Mount (SMD) Aluminum Electrolytic Capacitor. This component is designed for power management and filtering in compact electronic circuits. --- ### 1. Technical Specifications Table Based on standard industry nomenclature for this series, here are the primary technical parameters: | Parameter | Specification | | :--- | :--- | | **Capacitance** | 330 µF (Microfarads) | | **Voltage Rating** | 4V DC | | **Capacitance Tolerance** | ±20% (Standard M tolerance) | | **Temperature Range** | -40°C to +85°C (Standard) / +105°C (High Temp) | | **Package / Case** | SMD (V-Chip) | | **Dimensions (D x L)** | Approximately 6.3mm x 7.7mm | | **Termination** | Radial Lead-less (Surface Mount) | --- ### 2. Breakdown of the Part Number The alphanumeric code can be decoded as follows: * **RVR**: Series prefix (typically indicating a specific manufacturer series like Elna or similar equivalents focusing on low profile/low ESR). * **4V**: Rated Voltage (4 Volts). * **331**: Capacitance value in pF. The first two digits are significant figures, the third is the multiplier. ($33 \times 10^1 = 330$ µF). * **M**: Tolerance code (M = ±20%). * **G68**: Case size code (Standardized dimensions for diameter and height). * **U-R2**: Packaging/Tape and Reel suffix (indicates how the parts are wound for automated assembly). --- ### 3. Key Applications This capacitor is commonly used in low-voltage digital circuits where space is limited. Typical use cases include: 1. **Bypassing/Decoupling:** Removing noise from power supply lines near ICs. 2. **Smoothing:** Reducing ripple current in DC-DC converters. 3. **Consumer Electronics:** Found in laptops, tablets, and peripheral devices due to the low-profile SMD design. --- ### 4. Installation & Handling * **Polarity:** As an electrolytic capacitor, it is **polarized**. The top of the casing usually features a dark mark (usually black or blue) indicating the **negative (-)** terminal. * **Soldering:** Designed for Lead-Free Reflow soldering processes. Ensure the thermal profile does not exceed the component's maximum heat rating to avoid electrolyte leakage.