The OP252025MEDA4SI-u with SMD Oscillators (XO) 25MHz ±20ppm SMD-2520-4P RoHS is an electronic part manufactured by Yangxing. It is a surface-mount device that consists of a quartz crystal (which is a piezoelectric material), a pair of electrodes, and a package that is designed for mounting on a circuit board. This oscillator provides an output frequency of 25MHz, with a tolerance of ±20 parts per million (ppm). It is designed to meet the RoHS environmental standards, which restrict the use of hazardous substances in electrical and electronic equipment. This product has four metal pins spaced 2.5mm apart in a 2520 footprint. It operates over a temperature range of -20 to +70 degrees Celsius.