The part number **HTK-50V101MH10EXQ-R2** refers to a high-performance **Aluminum Electrolytic Capacitor** manufactured by **United Chemi-Con (UCC)**. This specific component is part of the **HTK series**, designed for high-temperature and high-reliability applications, often in the automotive or industrial sectors. --- ### 1. Technical Specifications | Parameter | Specification | |:---|:---| | **Capacitance** | 100 µF | | **Voltage Rating** | 50 VDC | | **Tolerance** | ±20% (M) | | **Temperature Range** | -55°C to +125°C | | **Endurance (Life)** | 2,000 to 5,000 hours at 125°C | | **Case Size (D x L)** | 8.00mm x 10.00mm | | **Mounting Type** | Surface Mount (SMD) | | **Series** | HTK (High Temperature / Low ESR) | --- ### 2. Part Number Breakdown To understand the specific features of this component, we can deconstruct the code: * **HTK**: Series name (High heat resistance, low ESR, SMD type). * **50V**: Rated Voltage (50 Volts). * **101**: Capacitance Code. The first two digits (10) are significant figures; the third (1) is the multiplier ($10^1$). $10 \times 10 = 100 \mu F$. * **M**: Tolerance (±20%). * **H10**: Case size code (approx. 8mm diameter). * **E**: Terminal/Plating type. * **XQ**: Packaging or internal production code. * **R2**: Tape and Reel packaging specification. --- ### 3. Key Features and Applications #### Features: * **High Temperature Stability:** Rated for operation up to **125°C**, which is significantly higher than standard 85°C or 105°C capacitors. * **Low ESR:** Designed to handle high ripple currents with minimal internal heating. * **AEC-Q200 Compliant:** Typically used in automotive environments where vibration and thermal cycling are common. #### Common Applications: 1. **Automotive ECU:** Engine Control Units and powertrain sensors. 2. **LED Lighting:** Drivers that operate in high-ambient temperature environments. 3. **Industrial Power Supplies:** DC-DC converters and filtering stages. --- ### 4. Footprint/Physical Layout (Typical SMD) The "H10" case code corresponds to a specific pad layout on a PCB: ```text [Top View] ____________ / \ | ( + ) | <-- Anode Mark (usually a bar) | 100 | | 50V | \____________/ |_| |_| <-- Solder terminals ```