CM7V-T1A Low ESR is a low frequency SMT Quartz Crystal Unit that incorporates a tuning fork Quartz Crystal Resonator with Maximum ESR value of 50 kΩ for low power designs. It operates under vacuum in a hermetically sealed ceramic package with metal lid.


  • Ultra small size: 3.2 × 1.5 × 0.65 mm
  • Outstanding hermetic sealing with gold-tin preform
  • High stability and low aging guaranteed by hermetic sealing
  • Available for extended operating temperature range
  • Lightweight:  10.3 mg
  • High shock and vibration resistant
  • 100% Pb-free, RoHS-compliant
  • Automotive qualification according to AEC-Q200 available

Ordering Information


  • IoT
  • Wearables, Portables
  • Health Care
  • Metering
  • Industrial
  • Automotive
  • Ultra Small Devices