The ultra-miniature ECX-31B is a very compact SMD Tuning Fork Crystal. The 3.2 x 1.5 x 0.9 mm ceramic package is ideal for today’s SMD manufacturing environment. ECX-31B SMD CRYSTAL Request a Sample ECX-31B SMD CRYSTAL Low Profile 3.2 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 Equi.