The part number **HT-25V101MF80-R2** refers to a high-temperature Surface Mount Device (SMD) Aluminum Electrolytic Capacitor. This specific component is designed for applications requiring stability and durability in compact electronic circuits. --- ### 1. Specification Breakdown Based on standard industry nomenclature for electrolytic capacitors, here is the technical breakdown of the part number: | Code Segment | Parameter | Detail | | :--- | :--- | :--- | | **HT** | Series | High Temperature / Low Impedance series | | **25V** | Rated Voltage | 25 Volts DC (Maximum working voltage) | | **101** | Capacitance | 100 µF (10 followed by 1 zero) | | **M** | Tolerance | ±20% | | **F80** | Case Size | Often corresponds to 6.3mm x 7.7mm or 8mm diameter | | **R2** | Packaging | Tape and Reel (for automated SMT assembly) | --- ### 2. Key Technical Characteristics * **Type:** Aluminum Electrolytic Capacitor (Polarized). * **Mounting Style:** SMD (Surface Mount Device) / V-Chip. * **Operating Temperature:** Typically rated up to **105°C** (Standard HT series) or **125°C** depending on the specific manufacturer sub-brand. * **Life Span:** Usually rated for 2,000 to 5,000 hours at its maximum temperature limit. * **ESR (Equivalent Series Resistance):** Designed with low impedance to handle ripple currents effectively in power conversion. --- ### 3. Applications and Use Cases This component is commonly found in the following environments: 1. **Power Management:** Used for filtering and decoupling in DC-DC converters. 2. **Automotive Electronics:** Suitable for infotainment systems or lighting control modules due to high-temperature resistance. 3. **Industrial Automation:** Used in PLC (Programmable Logic Controller) power stages. 4. **Consumer Electronics:** Found in LED drivers and telecommunication equipment. --- ### 4. Comparison Table: Aluminum vs. Tantalum If you are considering this part for a design, it is important to understand why an Aluminum SMD capacitor is chosen over other types: | Feature | HT-25V101 (Aluminum) | Tantalum Equivalent | | :--- | :--- | :--- | | **Cost** | Lower | Higher | | **Failure Mode** | Dries out over time (Open) | Can fail short/combust | | **Voltage Derating** | Minimal required | Significant (up to 50%) | | **Size** | Larger vertical profile | Very low profile | ---