The part number **HTX-25V331MH10XQ-R2** refers to a specific Aluminum Electrolytic Capacitor, likely manufactured by a company like **Lelon** or a similar electronic component brand. This component is designed for high-temperature stability and surface-mount applications. --- ### Technical Specifications | Parameter | Specification | Details | | :--- | :--- | :--- | | **Capacitance** | 330 µF | The energy storage capacity. | | **Voltage Rating** | 25V | The maximum DC voltage it can handle safely. | | **Series** | HTX | Usually indicates High Temperature / Low ESR series. | | **Case Size** | 10 x 10.2 mm | Typically denoted by the "10XQ" code (Diameter x Length). | | **Tolerance** | ±20% (M) | Standard industry tolerance for electrolytic caps. | | **Mounting Type** | SMD (V-Chip) | Surface mount design for PCB assembly. | | **Packaging** | Tape & Reel (R2) | Standard packaging for automated pick-and-place. | --- ### Part Number Breakdown Understanding the nomenclature helps in identifying the component features: 1. **HTX**: This is the **Series Code**. HTX series capacitors are generally "Hybrid" or high-temp electrolytic capacitors designed for long life (often 2,000 to 5,000 hours at 125°C). 2. **25V**: The **Rated Voltage** (25 Volts). 3. **331**: The **Capacitance Code**. The first two digits (33) are the base value, and the third (1) is the multiplier (10^1). Thus, 330 µF. 4. **M**: The **Tolerance Code**. M stands for ±20%. 5. **H**: Often represents a specific **Temperature Grade** or terminal style (High Temp). 6. **10XQ**: Represents the **Physical Dimensions** (10mm diameter). 7. **R2**: Indicates the **Packaging Format**, specifically a 13-inch or 15-inch reel for automated assembly. --- ### Key Features & Applications * **Hybrid Technology:** Many HTX series utilize a conductive polymer and liquid electrolyte (Hybrid). This provides extremely low **ESR** (Equivalent Series Resistance) and high ripple current capability. * **AEC-Q200 Compliance:** Parts with this naming convention are frequently used in **Automotive electronics**, where vibration resistance and wide temperature ranges (-55°C to +125°C) are required. * **Applications:** * DC/DC Converters in automotive ECUs. * Power supply filtering in industrial equipment. * Smoothing circuits in LED lighting drivers. --- ### Comparison with Standard Electrolytics | Feature | Standard Electrolytic | HTX (Hybrid/High Temp) | | :--- | :--- | :--- | | **Lifespan** | Moderate | Very High at elevated temps | | **ESR** | High | Low to Ultra-Low | | **Stability** | Fluctuates with temp | Very stable across temp range |