Product Highlights New Products

ECS Electronic Component Highlight Surface Mount Crystals

ECS introduces the ultra-miniature ECX-34RR is a very compact SMD tuning fork crystal with a typical ESR of 20 kΩ. Low ESR part recommended by STMicroelectronics for the STM32 Microcontrollers. View datasheet here.


  • Low Power RTC Applications such as STM32 AN2867
  • 20K Typical ESR
  • 3.2 x 1.5 mm Footprint
  • Extended Temp Range
  • RoHS Compliant


  • IoT
  • Automotive
  • COTS
  • Navigation
  • Medical (non-life sustaining)
  • Mobile devices
  • Industrial applications
  • Wireless devices
  • Test equipment

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Please contact us if you need additional information or have a specific requirement in your application.

ECS, Inc. International
15351 West 109th Street
Lenexa, KS 66219

Tel: 913-782-7787
Toll Free: 1-800-237-1041
Fax: 913-782-6991

ECS Introduces The Ultra-Minature ECX-34RR was last modified: April 10th, 2023 by ECS Inc.