The CS1E101M-CRE77 with Aluminum Electrolytic Capacitors - SMD 100uF ±20% 25V SMD,6.3x7.7mm RoHS is a surface-mount device (SMD) manufactured by Semtech and is used to store electrical energy in an electronic circuit. It consists of a cylinder-shaped aluminium foil and a separator coated with an electrolyte. It is rated at 100uF, with the tolerance of ±20%, and the voltage of 25V making it suitable for medium power and low-frequency applications. It has a size of 6.3x7.7mm, and is compliant with the RoHS (Restriction of the Use of Hazardous Substances) standard.