The **SLP331M350H3P3** is a high-voltage, snap-in aluminum electrolytic capacitor manufactured by **Cornell Dubilier (CDE)**. This component is designed for power electronics where reliability and high ripple current handling are required. --- ## Technical Specifications | Parameter | Specification | | :--- | :--- | | **Capacitance** | 330 µF | | **Voltage Rating** | 350 VDC | | **Tolerance** | ±20% (M) | | **Temperature Range** | -40°C to +105°C | | **Termination Style** | Snap-In (2 Pins) | | **Case Size (D x L)** | 35mm x 30mm (H3P3 Package Code) | | **Life Expectancy** | 3,000 Hours @ 105°C | --- ## Component Breakdown ### 1. Part Number Decoding * **SLP:** Series name (Standard 105°C Snap-In Aluminum Electrolytic). * **331:** Capacitance value. The first two digits are significant figures, the third is the multiplier (33 x 10¹ = 330µF). * **M:** Tolerance code (±20%). * **350:** Rated working voltage (350 Volts). * **H3P3:** Physical dimensions and lead style (H = 35mm diameter; 3 = 30mm length). ### 2. Key Features * **Snap-In Terminals:** Designed for easy mounting on Printed Circuit Boards (PCBs). The pins "snap" into place, holding the component steady during the soldering process. * **High Temperature Rating:** Rated for 105°C, making it suitable for industrial environments compared to standard 85°C capacitors. * **High Ripple Current:** Engineered to handle the heat generated by AC components in DC power lines. ### 3. Common Applications * **Switch Mode Power Supplies (SMPS):** Used as a bulk storage capacitor for filtering input/output voltage. * **Motor Drives:** Provides DC bus stabilization in frequency inverters. * **Uninterruptible Power Supplies (UPS):** Energy storage for backup power systems. * **Solar Inverters:** Filtering DC voltage converted from solar panels. --- ## Technical Considerations * **Polarity:** This is a polarized component. Installing it backwards can result in catastrophic failure or explosion. * **ESR (Equivalent Series Resistance):** Lower ESR is critical in this series to reduce power loss and self-heating. * **Venting:** The top of the casing features a safety vent to release internal pressure in case of overheating.