WTL9M40794CC with HC-49S-SMD-2P Crystals ROHS is a type of quartz crystal oscillator manufactured by WTL, which is a global leader in crystals and clock oscillators. It is a Surface Mount Device (SMD) quartz crystal oscillator designed for high frequency applications. The WTL9M40794CC with HC-49S-SMD-2P Crystals is small in size and offers RoHS compliance. It is RoHS compliant, which means it does not contain hazardous or toxic substances such as lead and cadmium. It also features high shock and vibration resistance, excellent performance in both low and high temperatures, and high frequency stability. This oscillator is suitable for applications in telecommunications, portable computing, automotive, consumer electronics, and other industries.