The part number **HT-10V221MF80EN-R2** refers to a specific Surface Mount (SMD) Aluminum Electrolytic Capacitor. This component is designed for high-temperature stability and general-purpose filtering in electronic circuits. ### 1. Part Number Breakdown Analyzing the nomenclature helps identify the physical and electrical characteristics of the component: | Segment | Meaning | Specification | | :--- | :--- | :--- | | **HT** | Series Code | High Temperature / Standard SMD | | **10V** | Voltage Rating | 10 Volts (DC) | | **221** | Capacitance | 220 µF (22 x 10^1) | | **M** | Tolerance | ±20% | | **F80** | Case Size | 6.3mm (Diameter) x 7.7mm (Height) | | **EN** | Terminal Style | Standard SMD leads | | **R2** | Packaging | Tape & Reel (RoHS compliant) | --- ### 2. Technical Specifications This capacitor is typically used for power decoupling and noise suppression. * **Type:** Aluminum Electrolytic (Polarized). * **Capacitance:** 220 microfarads (µF). * **Rated Voltage:** 10V DC (Maximum working voltage). * **Operating Temperature:** Generally rated up to **105°C** (Standard for the HT series). * **Mounting Type:** Surface Mount Device (SMD/SMT). * **ESR/Ripple Current:** Designed for moderate ripple current handling in DC-DC converters. --- ### 3. Physical Dimensions (F80 Case) The "F80" designation specifically identifies the physical footprint on a PCB: | Dimension | Measurement (Approx.) | | :--- | :--- | | **Diameter (D)** | 6.3 mm | | **Height (L)** | 7.7 mm | | **Footprint (W x H)** | ~6.6 mm x 6.6 mm | --- ### 4. Common Applications Due to its 10V rating and 220µF capacity, it is ideal for: 1. **5V or 3.3V Rail Filtering:** Providing a buffer for digital logic circuits. 2. **Audio Circuits:** Coupling and decoupling in low-voltage audio paths. 3. **Consumer Electronics:** Used in routers, monitors, and IoT devices where space is limited. 4. **DC-DC Converters:** Output smoothing for small power supplies. --- ### 5. Implementation Notes * **Polarity:** As an electrolytic capacitor, it is polarized. Ensure the negative stripe on the top of the can matches the PCB marking. * **Reflow Soldering:** Being an SMD component, it is designed for automated reflow ovens. Check the specific thermal profile to avoid "dry out" or venting during assembly. * **Voltage Derating:** For long-term reliability, it is recommended to run this 10V capacitor at a maximum of 8V in continuous operation.