The ultra-miniature ECX-49 is a very compact SMD Tuning Fork Crystal. The 4.1 x 1.5 x 0.9 mm ceramic package is ideal for Industrail applications. ECX-49 SMD CRYSTAL Request a Sample ECX-49 SMD CRYSTAL Low Profile 4.1 x 1.5 mm Footprint Extended Temp. Range RoHS Compliant DIMENSIONS (mm) OPERATING CONDITIONS / ELECTRICAL CHARACTERISTICS PARAMETERS Frequency Frequency Tolerance Temperature Coefficient Shunt Capacitance Load Capacitance Drive Level Equivalent Series Res.