The **HT-35V470MF61Q-R2** is a specific part number for a surface-mount (SMD) aluminum electrolytic capacitor. This component is designed for high-temperature stability and general-purpose filtering in electronic circuits. ### Component Specifications | Parameter | Specification | Details | | :--- | :--- | :--- | | **Capacitance** | 47 μF | The amount of electrical charge it can store. | | **Voltage Rating** | 35V | The maximum DC voltage it can safely handle. | | **Tolerance** | ±20% (M) | The allowable variation in capacitance value. | | **Case Size** | F61 (6.3 x 5.8 mm) | Physical dimensions (Diameter x Height). | | **Series** | HT | High-temperature / standard long-life series. | | **Mounting Type** | SMD / V-Chip | Designed for automated pick-and-place soldering. | --- ### Part Number Breakdown Based on standard industry naming conventions for aluminum electrolytic capacitors, the code can be decoded as follows: * **HT**: Series prefix (typically signifies high-temperature or long-life characteristics). * **35V**: Rated working voltage (35 Volts DC). * **470**: Capacitance code. The "47" is the base value, and "0" indicates the multiplier ($10^0$). Result: **47μF**. * **M**: Tolerance code ($M = \pm 20\%$). * **F61**: Case size code (Diameter 6.3mm x Length 5.8mm). * **Q-R2**: Packaging and compliance suffix (usually denotes Taping & Reel for assembly lines and RoHS compliance). --- ### Key Applications 1. **Power Management**: Used in DC-DC converters to smooth out voltage ripples. 2. **Filtering**: Decoupling high-frequency noise in automotive or industrial control boards. 3. **Space-Constrained Electronics**: Because of its SMD (V-Chip) design, it is ideal for compact PCBs where through-hole components are too bulky. 4. **Automotive/Industrial**: The "HT" series is often rated for **105°C**, making it suitable for environments with moderate heat exposure. --- ### Technical Characteristics * **Polarity**: This is a **polarized** component. The negative terminal is usually marked with a black or colored stripe on the top of the aluminum can. * **ESR (Equivalent Series Resistance)**: While not listed in the part number, standard HT series capacitors offer moderate ESR suitable for general-purpose bypass applications. * **Reflow Soldering**: Designed to withstand the heat profiles of infrared and convection reflow soldering processes.