The **RVT-25V331MIET-R5** is a specific part number for a Surface Mount (SMD) Aluminum Electrolytic Capacitor. This component is typically manufactured by brands like **Lelon** or other manufacturers following similar naming conventions. --- ## 1. Part Number Breakdown Understanding the code helps in identifying the specific technical parameters of the component: | Code Segment | Specification | Meaning | |:---|:---|:---| | **RVT** | Series | Vertical Chip Type (Standard, 105°C) | | **25V** | Rated Voltage | 25 Volts DC | | **331** | Capacitance | 330 µF (33 + one '0') | | **M** | Tolerance | ±20% | | **I** | Case Size (Dia) | 8 mm | | **ET** | Case Size (Length) | 10.2 mm or 10.5 mm | | **R5** | Packaging | Tape & Reel (Usually 500 pcs) | --- ## 2. Key Technical Specifications These are the physical and electrical characteristics critical for circuit design: - **Type:** Aluminum Electrolytic (Polarized) - **Mounting Style:** SMD/SMT (Surface Mount Technology) - **Operating Temperature:** -55°C to +105°C (High-temperature rating suitable for industrial use) - **Lifetime:** Usually 2,000 hours at 105°C - **Capacitance:** 330 Microfarads (µF) - **Leakage Current:** Low (typically $0.01CV$ or $3\mu A$ after 2 minutes) --- ## 3. Physical Dimensions The "IET" designation refers to the physical footprint on the PCB: | Dimension | Measurement | |:---|:---| | **Diameter (ΦD)** | 8.0 mm | | **Height (L)** | 10.2 mm or 10.5 mm | | **Platform Size** | 8.3 mm x 8.3 mm | --- ## 4. Common Applications Due to its 25V rating and 330µF capacity, this part is commonly found in: 1. **Power Filtering:** Smoothing output voltage in DC-DC converters. 2. **Decoupling:** Reducing noise in power supply rails for integrated circuits. 3. **Consumer Electronics:** Used in LED drivers, telecommunication equipment, and computer motherboards. 4. **Automotive:** Often used in non-safety critical cabin electronics due to the 105°C temperature rating. --- ## 5. Usage Precautions * **Polarity:** This is a polarized component. Ensure the negative stripe on the top of the capacitor matches the PCB marking. * **Reflow Soldering:** Follow the JEDEC standard for lead-free reflow profiles to avoid damaging the internal electrolyte. * **Voltage Derating:** It is best practice to operate the capacitor at 80% or less of its rated voltage (e.g., use this 25V cap for a 12V or 16V rail).