ECX-1210 32.768 KHz SMD Tuning Fork Crystal The ultra-minature ECX-1210 is a very compact SMD Tuning Fork Crystal. The 1.2 x 1.0 x 0.5 mm smallest in it’s class ceramic package is ideal for wearable devices, IoT, and medical applications. Request a Sample ECX-1210 SMD CRYSTAL Low Profile 1.2 x 1.0 mm Footprint Extended Temp. Range RoHS Compliant Applications: Automotive, COTS, Industrial, IOT DIMENSIONS (mm) OPERATING CONDITIONS / ELECTRICAL.