The **HTX-25V561MHC5X-R2** is a high-performance surface-mount (SMD) aluminum electrolytic capacitor, specifically designed for high-temperature and high-reliability environments. It belongs to the **HTX series**, which is known for its low ESR (Equivalent Series Resistance) and long life. --- ### 1. Part Number Breakdown Based on standard industry naming conventions for this series, here is the functional breakdown of the part number: | Segment | Meaning | Specification | | :--- | :--- | :--- | | **HTX** | Series Name | High temperature, low ESR, long life | | **25V** | Voltage Rating | 25 Volts DC | | **561** | Capacitance | 560 µF (56 x 10^1) | | **M** | Tolerance | ±20% | | **HC5** | Case Size | Specific diameter and height (e.g., 10x10.5mm) | | **X-R2** | Packaging/Special | Tape and Reel / RoHS compliant | --- ### 2. Technical Specifications The HTX series is a "Hybrid" or advanced electrolytic type often used in automotive or industrial power supplies. * **Capacitance:** 560 microfarads (µF). * **Voltage:** 25V DC (Maximum surge voltage is typically 1.15x the rated voltage). * **Temperature Range:** -55°C to +125°C (designed for extreme environments). * **Endurance:** Often rated for 2,000 to 5,000 hours at 125°C (lifespan increases significantly as operating temperature drops). * **ESR:** Low ESR, which minimizes heat generation during high ripple current conditions. --- ### 3. Key Applications Because of its durability and compact SMD form factor, this part is commonly found in: 1. **Automotive Electronics:** Engine Control Units (ECUs), ADAS sensors, and infotainment systems where vibration and heat are constant. 2. **DC/DC Converters:** Used for smoothing and filtering in high-frequency power supplies. 3. **Industrial Automation:** Power boards for robotics and PLC systems. 4. **LED Drivers:** Where heat management is critical for the longevity of the circuit. --- ### 4. Comparison Table: Hybrid vs. Standard Electrolytic | Feature | Standard Electrolytic | HTX (Hybrid Type) | | :--- | :--- | :--- | | **Lifespan** | Moderate | Very High | | **ESR Stability** | Fluctuates with temp | Highly stable | | **Size** | Larger | Compact (High energy density) | | **Cost** | Low | Premium | ---