The **HTL-50V331MIE-R5** is a specific part number for an Aluminum Electrolytic Capacitor, typically manufactured by companies like **Man Yue (Samxon)** or similar vendors specializing in high-temperature, long-life components. ### 1. Part Number Breakdown The alphanumeric code provides specific details regarding the component's electrical and physical properties: | Segment | Meaning | Detail | | :--- | :--- | :--- | | **HTL** | **Series Code** | High Temperature, Low Impedance, Long Life series. | | **50V** | **Voltage Rating** | Maximum working voltage of 50 Volts DC. | | **331** | **Capacitance** | 330 $\mu$F (33 + 1 zero). | | **M** | **Tolerance** | $\pm$20% (Standard for electrolytic caps). | | **I** | **Case Size Code** | Typically refers to the diameter (e.g., 10mm). | | **E** | **Case Height Code** | Typically refers to height (e.g., 12.5mm or 16mm). | | **R5** | **Packaging/Lead** | Refers to lead spacing (5.0mm) or bulk/taped packaging. | --- ### 2. Key Technical Specifications Based on the HTL series standards, here are the typical performance characteristics: * **Type:** Radial Lead Aluminum Electrolytic Capacitor. * **Capacitance:** 330 microfarads ($\mu$F). * **Voltage:** 50V DC (Surge voltage usually 63V). * **Operating Temperature:** -40°C to +105°C. * **Load Life:** Usually rated for 2,000 to 5,000 hours at 105°C (depending on the specific manufacturer sub-series). * **Impedance:** Low ESR (Equivalent Series Resistance), designed for high-frequency applications. --- ### 3. Applications and Usage This part is commonly found in power conversion and filtering circuits where reliability and heat resistance are required. * **Switching Power Supplies (SMPS):** Used on the output stage for ripple current filtering. * **LED Drivers:** Provides stabilization for constant current output. * **Industrial Motherboards:** Decoupling high-frequency noise near power rails. * **DC-DC Converters:** Managing energy storage and smoothing voltage spikes. --- ### 4. Circuit Symbol and Orientation As an electrolytic capacitor, this component is **polarized**. ```text (Positive Lead) + ----| |---- - (Negative Lead) (Anode) (Cathode) ``` * **Note:** The negative side is marked on the physical body with a light-colored stripe (usually white or grey) and has a shorter lead. ---