The part number **HT-63V100MF61EQ-R2** refers to a high-temperature, surface-mount (SMD) aluminum electrolytic capacitor. This component is designed for power management and filtering in demanding environments. --- ### 1. Specification Breakdown The part number follows a specific nomenclature that defines its electrical and physical properties: | Feature | Specification | Description | | :--- | :--- | :--- | | **Type** | Aluminum Electrolytic | Uses electrolyte liquid/gel for high capacitance density. | | **Mounting** | SMD (V-Chip) | Designed for automated surface mount assembly. | | **Capacitance** | 100 µF | The storage capacity of the component. | | **Voltage Rating** | 63V DC | Maximum continuous voltage it can withstand. | | **Size Code** | F61 / 6.3x7.7mm | Typically refers to the diameter (6.3mm) and height (7.7mm). | | **Tolerance** | ±20% (M) | Standard tolerance for electrolytic capacitors. | | **Temp Range** | Up to 105°C | Rated for standard industrial/automotive temperature peaks. | --- ### 2. Key Technical Characteristics * **Low ESR / High Ripple Current:** Parts in the "HT" or similar high-temp series are often optimized for low Equivalent Series Resistance, allowing them to handle higher ripple currents without overheating. * **Polarity:** As an electrolytic capacitor, this is a polarized component. The negative terminal is usually marked with a black stripe on the top of the "V-chip" casing. * **Lifetime:** Usually rated between **2,000 to 5,000 hours** at its maximum rated temperature (105°C). --- ### 3. Common Applications Due to its 63V rating and SMD form factor, this part is commonly found in: 1. **DC-DC Converters:** Input/Output filtering for power supplies converting 24V or 48V rails. 2. **Automotive Electronics:** Used in infotainment or body control modules where vibration resistance is needed. 3. **Industrial Automation:** Power smoothing for PLC (Programmable Logic Controller) modules. 4. **LED Drivers:** Filtering high-frequency noise in lighting power circuits. --- ### 4. PCB Footprint (General Dimensions) ```text [ 6.3mm ] +-----------+ _ | | | | Capacitor | | 7.7mm (Height) | Body | | +-----------+ - | | | | [Pad] [Pad] (SMD Terminals) ```