The **HV-6V331MF80-R2** is a surface-mount (SMD) aluminum electrolytic capacitor. This specific part number follows the naming convention typical of manufacturers like **Elna** or **Lelon**, often used in automotive and industrial high-reliability applications. --- ### 1. Key Technical Specifications Based on the part number coding, here are the primary electrical characteristics: | Parameter | Specification | | :--- | :--- | | **Capacitance** | 330 µF (indicated by "331") | | **Voltage Rating** | 6.3V DC (indicated by "6V") | | **Type** | Aluminum Electrolytic (Surface Mount) | | **Series** | HV Series (High Voltage/High Reliability/Low Impedance) | | **Size Code** | F80 (Typically refers to 6.3mm diameter x 7.7mm or 8mm height) | | **Tolerance** | ±20% (Standard for electrolytic caps) | | **Operating Temp** | Usually -40°C to +105°C | --- ### 2. Breakdown of the Part Number * **HV**: Represents the series name. In the SMD capacitor world, the "HV" series usually denotes a high-temperature, long-life, or low-impedance line. * **6V**: The working voltage (6.3 Volts). This is the maximum continuous DC voltage the capacitor can withstand. * **331**: The capacitance value in picofarads (pF). The first two digits are the significant figures (33) and the third is the multiplier ($10^1$). So, $33 \times 10^1 = 330$ µF. * **MF80**: This identifies the case size and packaging dimensions. "F80" corresponds to a specific physical footprint (e.g., 6.3mm x 8.0mm). * **R2**: Usually denotes the packaging style (Tape & Reel) and RoHS compliance status. --- ### 3. Common Applications Due to its low voltage and relatively high capacitance, this part is commonly found in: 1. **Power Decoupling:** Smoothing out voltage fluctuations on 3.3V or 5V logic rails. 2. **DC-DC Converters:** Used on the output stage of buck converters. 3. **Automotive Electronics:** Infotainment systems or sensor modules where space is limited and SMD mounting is required. 4. **Consumer Electronics:** Laptop motherboards or telecommunications equipment. --- ### 4. Footprint Representation If you are designing a PCB (Printed Circuit Board), the physical layout usually looks like this: ```markdown [+] ------- [-] | | | (Cap) | <-- 6.3mm diameter | | ------- / \ <-- Square base (approx 6.6mm x 6.6mm) ``` ---