The X49SM8MSD2SI is an 8MHz ±20ppm HC-49SMD RoHS SMD crystal resonator manufactured by Yangxing. It features low power dissipation and is designed for a wide range of frequency control applications. This device offers a wide operating temperature range and provides excellent performance in both frequency control and temperature compensated crystal oscillator (TCXO) applications. Its high shock and vibration resistance make it suitable for automotive, industrial, and medical devices. It is RoHS compliant, and packs an excellent level of reliability against electrical noise and vibration.