The ECX-1637QZ is an ultra-miniature ruggedized compact SMD crystal. The 2.0 x 1.6 x 0.45 mm ceramic package with additional internal bonding points is ideal for harsh high shock/vibration environments such as automotive or TPMS applications. This crystal offers a frequency range of 16 MHz ~ 60 MHz and an extended temperature range with a tolerance of ±25 ppm.