TechnologyThe B25000J288 is a DIP Crystal Resonator manufactured by East Crystal Technology. It is RoHS (Restriction of Hazardous Substances) compliant and has an operating frequency of 25MHz ±20ppm. The package of the resonator is a HC-49S, a rectangular package with two pins which makes it easy to install on a PCB. It is used for frequency control in applications such as PC system clocks, embedded system oscillators, radio communication system, etc.