The part number **RVC-35V100ME61U-R2** refers to a high-quality surface-mount (SMD) aluminum electrolytic capacitor. This component is typically manufactured by brands like **Elna** or companies following similar Japanese naming conventions for electronic components. Below is the detailed breakdown of its specifications and electronic properties. ### 1. Technical Specifications | Parameter | Specification | Notes | | :--- | :--- | :--- | | **Component Type** | Aluminum Electrolytic Capacitor | Polarized component | | **Mounting Type** | SMD (Surface Mount Device) | Vertical chip type (V-Chip) | | **Capacitance** | 10 $\mu$F | Indicated by "100" | | **Voltage Rating** | 35 V DC | Maximum operating voltage | | **Tolerance** | ±20% (M) | Standard industry tolerance | | **Case Size (D x L)** | 5mm x 5.8mm (Approx.) | Case code E61 | | **Temp Range** | -40°C to +105°C | High-temperature rating | | **Series** | RVC | Low impedance / Standard long life | --- ### 2. Decoding the Part Number The alphanumeric string follows a specific logic used in passive component manufacturing: * **RVC**: The **Series Name**. RVC series are typically designed for surface mounting and often feature low impedance or vibration resistance. * **35V**: The **Rated Voltage**. This capacitor can handle up to 35 Volts. It is recommended to run it at ~80% of this rating for longevity. * **100**: The **Capacitance Code**. The first two digits are the significant figures (10), and the third is the multiplier (0). $10 \times 10^0 = 10 \mu F$. * **M**: The **Tolerance Code**. M stands for ±20%. * **E61**: The **Case Size Code**. This identifies the physical dimensions (Diameter and Height) for the PCB footprint. * **U-R2**: The **Packaging/Plating Code**. Usually indicates Tape & Reel packaging (R2) and RoHS compliance (U). --- ### 3. Electronic Characteristics * **Polarity:** As an electrolytic capacitor, it is polarized. The negative terminal is usually marked with a black stripe on the top of the aluminum can. * **ESR (Equivalent Series Resistance):** The RVC series generally offers moderate to low ESR, making it suitable for filtering noise in power supplies. * **Lifetime:** Rated for approximately 1,000 to 2,000 hours at 105°C. In real-world conditions at lower temperatures (e.g., 45°C), the lifespan extends significantly (Arrhenius Law). --- ### 4. Common Applications * **DC-DC Converters:** Used for smoothing output voltage. * **Bypass/Decoupling:** Filtering high-frequency noise near ICs in automotive or industrial electronics. * **Consumer Electronics:** Found in thin devices where vertical space is limited but high capacitance is required. ---