The **LPX331M450H7P3** is a high-performance aluminum electrolytic capacitor manufactured by **Cornell Dubilier (CDE)**. It belongs to the **LPX series**, which is characterized by high voltage ratings and high ripple current capability in a compact "snap-in" form factor. --- ## 1. Technical Specifications Below are the primary electrical and physical characteristics of the component: | Parameter | Specification | | :--- | :--- | | **Capacitance** | 330 µF (Microfarads) | | **Voltage Rating** | 450 VDC | | **Tolerance** | ±20% (M) | | **Operating Temperature** | -40°C to +85°C | | **Life Time** | 2,000 Hours @ 85°C | | **Mounting Type** | Through Hole (Snap-In) | | **Termination** | 2-Lead (Standard Pin length) | | **Dimensions (D x L)** | 35mm x 40mm | --- ## 2. Key Features * **Snap-In Terminals:** Designed for easy PCB mounting, ensuring the part stays in place during the soldering process. * **High Voltage Range:** Rated for 450V, making it suitable for applications involving rectified AC line voltages (common in 220V/240V systems). * **High Energy Density:** The LPX series provides large capacitance in a relatively small cylindrical package. * **Safety Vent:** Includes a built-in safety vent to prevent explosion in the event of internal pressure buildup or failure. --- ## 3. Part Number Breakdown Understanding the SKU helps in identifying variations of the product: | Code Segment | Meaning | | :--- | :--- | | **LPX** | Series Name (85°C High Voltage Snap-In) | | **331** | Capacitance Code (33 + one zero = 330 µF) | | **M** | Tolerance (M = ±20%) | | **450** | Voltage Rating (450 Volts DC) | | **H7P3** | Case Size and Packaging Code | --- ## 4. Typical Applications Due to its high voltage and capacitance, this part is commonly found in: * **Switch-Mode Power Supplies (SMPS):** Used as a bulk input filter capacitor. * **Uninterruptible Power Supplies (UPS):** Energy storage for battery-to-AC inversion. * **Variable Speed Drives:** DC link filtering for motor controllers. * **Inverters:** Essential for solar or industrial power conversion. ---