The part 7M20000003 with SMD Crystal Resonators SMD-3225 RoHS is an SMD (Surface Mounted Device) manufactured by the TXC Corporation. It is a small, RoHS compliant oscillator that is able to produce a precisely defined frequency, typically around 32.768 KHz. It is suitable for many applications such as clock generation, antenna tuning, and measurement and correction of frequencies. The device features a small size package and is made with a low temperature coefficient that enables it to maintain a stable frequency output. It is also RoHS compliant and RoHS certified which makes it a suitable device for use in applications where RoHS standards are closely observed.