.The RSL220UF25V021 with SMD, 6.3x7.7mm is an Aluminum Electrolytic Capacitors - SMD ROHS manufactured by KNSCHA. It is a self-healing, electrolytically formed, high capacitance, compact, sealed capacitive component. Its features include a high reliability, long life, high insulation resistance (IR) and a quiet and stable performance. Its main application includes bypass, decoupling and filtering circuits. It is also RoHS compliant, lead free, and environmentally friendly components that are perfect for various applications.