The part number **HTX-50V151MHC5X-R2** refers to a high-performance **Aluminum Electrolytic Capacitor**. These components are specifically designed for high-reliability applications, often within the automotive or industrial sectors, where high temperature and low impedance are critical. ### 1. Part Number Breakdown While naming conventions vary slightly by manufacturer (commonly associated with brands like **Lelon**), the code typically follows this logic: | Segment | Meaning | Specification | | :--- | :--- | :--- | | **HTX** | Series Name | High Temperature / Low ESR / Long Life | | **50V** | Voltage Rating | 50 Volts (Maximum working voltage) | | **151** | Capacitance | 150 µF (15 + 1 zero) | | **M** | Tolerance | ±20% | | **HC5X** | Case Size | Specific Diameter x Height (e.g., 8x10.5mm or 10x10.5mm) | | **R2** | Packaging | Reel / Tape & Reel (T&R) | --- ### 2. Technical Specifications The HTX series is known for its "Hybrid" or advanced electrolytic characteristics, providing a balance between high capacitance and stability. * **Type:** Surface Mount (SMD) V-Chip. * **Operating Temperature:** Usually rated up to **+125°C** or **+150°C**. * **Life Span:** Rated for 2,000 to 5,000 hours at maximum temperature (this equates to many years at normal operating temperatures). * **ESR (Equivalent Series Resistance):** Very low, allowing the part to handle high ripple currents without overheating. --- ### 3. Key Features and Applications #### Features * **Vibration Resistance:** The "HC" designation often implies an anti-vibration structure, essential for parts mounted on engines or moving machinery. * **AEC-Q200 Qualified:** Most parts in this category are tested against automotive stress standards. * **Reflow Soldering Compatible:** Designed to withstand the high temperatures of lead-free SMT production lines. #### Common Applications * **Automotive Electronics:** ECU (Engine Control Units), ADAS sensors, and LED lighting drivers. * **Power Supplies:** DC/DC converters and switching regulators requiring smoothing. * **Industrial:** Telecommunications infrastructure and ruggedized power tools. --- ### 4. Typical Footprint Example If you are designing a PCB for this part, the landing pattern usually follows the standard SMD Electrolytic "Square Base" footprint: ```markdown [+] _______ [-] | | | ( O ) | <-- Capacitor Body |_______| |_| |_| <-- Solder Terminals ``` ---