The **HTX-35V391MHC5-R2** is a high-performance surface-mount (SMD) aluminum electrolytic capacitor. It belongs to the **HTX series**, which is specifically designed for high-temperature environments and low Impedance (ESR) applications. --- ### ## Technical Specifications | Parameter | Specification | Details | | :--- | :--- | :--- | | **Capacitance** | 390 µF | Rated storage capacity (±20% tolerance) | | **Voltage (DC)** | 35 V | Maximum working voltage | | **Series** | HTX | High temperature, Low ESR series | | **Case Size** | 8 x 10.5 mm | Diameter x Height (C5 size code) | | **Temperature Range** | -55°C to +125°C | Extreme operating environment capability | | **Endurance** | 2000 - 5000 hours | Rated life at maximum temperature | | **Mounting Type** | SMD (V-Chip) | Surface mount technology | --- ### ### Key Features and Construction 1. **High Temperature Resilience:** Unlike standard capacitors (rated at 85°C or 105°C), the HTX series is rated for **125°C**. This makes it ideal for automotive and industrial power supplies. 2. **Low ESR (Equivalent Series Resistance):** This part is designed to have very low internal resistance, which reduces heat generation during high ripple current conditions and improves efficiency. 3. **V-Chip Design:** The "MHC5" code indicates a specific SMD package with a vibration-resistant base, making it suitable for high-vibration environments. 4. **RoHS Compliant:** The "-R2" suffix typically denotes compliance with environmental regulations regarding lead and hazardous substances. --- ### ### Typical Applications Due to its specifications, this capacitor is commonly found in: * **Automotive Electronics:** Engine control units (ECUs), LED lighting drivers, and ADAS systems. * **Industrial Power Supplies:** DC-DC converters and switching regulators. * **Telecommunications:** Base stations and networking hardware requiring long-term reliability. ---