The **LPX331M350E5P3** is a high-performance radial leaded aluminum electrolytic capacitor. It belongs to the **LPX series** manufactured by **Cornell Dubilier (CDE)**. This series is designed for high voltage applications requiring long life and high ripple current capability. --- ### 1. Technical Specifications The part number can be broken down to understand its core electronic characteristics: | Parameter | Value | Description | | :--- | :--- | :--- | | **Capacitance** | 330 µF | The "331" code (33 x 10^1) | | **Voltage Rating** | 350 VDC | Maximum operating DC voltage | | **Tolerance** | ±20% | Labeled as "M" | | **Case Size** | 30mm x 35mm | Diameter x Length | | **Mounting Type** | Snap-In | Designed for PCB mounting with stiff pins | | **Temperature** | -40°C to +85°C | Operating temperature range | | **Life Expectancy** | 1,000 Hours | At rated voltage and 85°C | --- ### 2. Physical Design and Dimensions The "E5P3" suffix refers to the physical dimensions and terminal style of the component: * **Case Diameter:** 30.00 mm. * **Case Length:** 35.00 mm. * **Termination:** Standard 2-pin snap-in terminals. This design ensures that the capacitor remains securely seated on the PCB during the soldering process and provides mechanical stability against vibration. --- ### 3. Key Electronic Features * **High Ripple Current:** Engineered to handle significant AC currents superimposed on the DC voltage, which is essential for power supply filtering. * **Low ESR:** It features low Equivalent Series Resistance, which minimizes internal heating and improves efficiency. * **Polarity:** As an electrolytic capacitor, it is polarized. Reversing the voltage can lead to component failure or venting. --- ### 4. Common Applications Due to its high voltage rating (350V) and capacitance, this part is typically found in: 1. **Switch Mode Power Supplies (SMPS):** Used in the input filtering stage (bulk storage). 2. **Motor Drives:** Provides DC bus stabilization. 3. **Uninterruptible Power Supplies (UPS):** Energy storage and smoothing. 4. **Industrial Controls:** High-power circuitry requiring robust voltage stabilization.