The **398LMB080M2CH** is a high-performance **Aluminum Electrolytic Capacitor** designed for power electronics applications. It belongs to the **LMB series**, which is characterized by a "Snap-In" terminal design and a high ripple current rating with a long lifecycle. --- ## Technical Specifications | Parameter | Value | | :--- | :--- | | **Capacitance** | 3900 µF (Microfarads) | | **Voltage Rating** | 80 VDC | | **Tolerance** | ±20% (at 120Hz, 20°C) | | **Operating Temperature** | -40°C to +105°C | | **Lifetime** | 3000 Hours at 105°C | | **Mounting Type** | Through-Hole (Snap-In) | | **Dimensions (D x L)** | Typically 30mm x 40mm (varies slightly by manufacturer) | --- ## Key Component Features ### 1. Snap-In Terminals The "M2CH" suffix usually denotes the lead configuration. Snap-in terminals are designed to "lock" into pre-drilled holes on a PCB before soldering. This provides mechanical stability during the soldering process and ensures the component can handle physical vibrations. ### 2. High Ripple Current Handling This capacitor is engineered to manage significant AC currents superimposed on the DC voltage. This is critical in power supplies where "smoothing" the rectified signal generates heat. ### 3. Extended Temperature Range Rated at **105°C**, this part is more robust than standard 85°C capacitors, making it suitable for industrial power supplies where internal cabinet temperatures can rise significantly. --- ## Applications * **Switching Power Supplies (SMPS):** Used in the output filter stage to stabilize voltage. * **Motor Controllers:** Providing bulk energy storage for DC links in frequency converters. * **Uninterruptible Power Supplies (UPS):** Energy reservoirs to bridge power gaps. * **Audio Amplifiers:** High-capacitance storage for handling peak power demands in high-fidelity audio systems. --- ## Comparison with Similar Parts | Feature | 398LMB080M2CH | Standard Electrolytic | | :--- | :--- | :--- | | **Mounting** | Snap-In (Secure) | Radial/Axial (Standard) | | **Temp Rating** | 105°C | 85°C | | **ESR** | Low | Standard | | **Primary Use** | High-Current Power | General Purpose |