The **HT-25V331MH10XN-R2** is a specific part number for a surface-mount (SMD) aluminum electrolytic capacitor. This component is typically manufactured by brands like **Lelon** or similar high-reliability electronic component manufacturers. --- ### Technical Specifications | Parameter | Value / Detail | | :--- | :--- | | **Component Type** | Aluminum Electrolytic Capacitor (V-Chip) | | **Capacitance** | 330 µF (Microfarads) | | **Rated Voltage** | 25V DC | | **Tolerance** | ±20% (Standard) | | **Temperature Range** | -55°C to +105°C | | **Case Dimensions** | 10.0mm (Diameter) x 10.2mm (Height) | | **Mounting Type** | Surface Mount Device (SMD/SMT) | | **Life Span** | Typically 2,000 to 5,000 hours at 105°C | --- ### Part Number Breakdown While manufacturer codes vary slightly, the breakdown for this specific string is generally as follows: 1. **HT**: Series Code. Usually represents a **High Temperature** or **Low Impedance** series. 2. **25V**: The Maximum Working Voltage (25 Volts). 3. **331**: Capacitance Value in pF (Picofarads). The first two digits are significant figures, the third is the multiplier. * `33` + `1 zero` = `330` µF. 4. **M**: Tolerance code (M = ±20%). 5. **H10XN**: Case Size code. * `H` often refers to a 10mm diameter. * `10` refers to the height (approx. 10.2mm). 6. **R2**: Packaging Code (usually refers to Tape & Reel for automated assembly). --- ### Key Applications Due to its 25V rating and 330µF capacity, this part is commonly found in: * **DC-DC Converters:** Filtering input/output noise. * **Power Supplies:** Smoothing rectified voltage in consumer electronics. * **Automotive Electronics:** Used in infotainment or dashboard systems where SMD parts are required for vibration resistance. * **Telecommunications:** General-purpose decoupling. --- ### Usage Considerations * **Polarity:** As an electrolytic capacitor, it is **polarized**. The negative terminal is usually marked with a black stripe on the top of the metal can. * **Reflow Soldering:** As an "SMD" type, it is designed to withstand infrared or convection reflow soldering temperatures, unlike leaded (through-hole) versions.