The SIT1604AI-22-18E-37.125000E with SMD Oscillators (XO) 37.125MHz SMD-3225-4P RoHS is a surface mounted oscillator (SMD) manufactured by SiTime. It has a frequency of 37.125 MHz and is packaged in a standard 3225-4P case. This oscillator is RoHS compliant, meaning it is designed and manufactured to be free of lead, mercury, cadmium, hexavalent chromium, polybrominated biphenyls (PBB), and polybrominated diphenyl ethers (PBDE). It is suitable for use in a variety of applications such as radio communications, satellite communications, and television broadcast. This oscillator has high performance and reliability, and its ultra-small form factor allows for easy integration into small devices.