The 7U12288E12UCG with SMD Crystal Resonators SMD-3225_4P RoHS is a surface-mounted quartz crystal resonator manufactured by SJK. It is used in electronic circuits to generate precise clock signals in microprocessors, digital signal processors, and communication systems. The quartz crystal is cut in such a way that it vibrates at a precise frequency. The resonator is designed in the 4-pin SMD-3225 package and is RoHS compliant. It has a Clock Frequency of 12.288 MHz, a Frequency Stability of ±25 ppm, and a Load Capacitance of 12 pF. The Frequency Aging is ±3 ppm/year, Operating Temperature Range is -30°C to +85°C, and the Frequency Tolerance Range is ±20 ppm. The resonator is highly reliable and offers stable accurate frequencies.