The SJK 7U38400E12UCG is a SMD Crystal Resonator SMD-3225_4P RoHS compliant component used in high frequency circuit applications. It is constructed from a metal and plastic package, and has four (4) pins for access to its internal components. The 7U38400E12UCG has a frequency of 12.000MHz, a frequency tolerance of ±20ppm, an operating temperature range of -20°C to +70°C, and an average operating time of 1000 hours. It is an ideal component for creating clock signals in circuits, as it is highly accurate in frequency and highly reliable.