The 7I20000F18UCG is a SMD Crystal Resonators 5032/4PINSEAM RoHS manufactured by SJK. It is an electronic component used to convert electrical signals into mechanical vibration. It is a four pin SMD crystal resonator with RoHS compliant that is used to generate and filter an oscillating signal. It is used in a wide array of applications, including oscillators, filters, and measuring devices. It has a frequency range of up to 100MHz and is supplied in reels of 250 pieces. It is an extremely reliable component that meets RoHS 115 environmental standards.