New Products

ECX-12R 32.768 kHz Quartz Crystal

ECX-12R 32.768 kHz low ESR quartz crystal is RoHS 2 and REACH compliant.

ECX-12R miniature SMD 32.768 kHz crystal offers extremely low ESR 50 kΩ (typical) and a maximum of 70 kΩ. The 2.0 x 1.2 x 0.6 mm (LWH) ceramic package is ideal for IoT applications. The standard version has a frequency tolerance of ±20 ppm at +25°C, and the C version offers a ±10 ppm tolerance at +25°C. The available load capacitance is 6 pF, 7 pF, 9 pF, or 12.5 pF with an operating temperature of -40°C ~ +85°C.


  • 2.0 mm x 1.2 mm footprint
  • Extended temperature range
  • RoHS 2 and REACH compliant


  • MSL 1
  • Lead finish Au


  • IoT
  • RTC
  • Industrial 


  • Microprocessors requiring low ESR
  • Low power RTC applications
Image Part Number Frequency Frequency
Datasheet Check
34B ECX 31 ECS-.327-9-12R-TR 32.768 kHz ±20ppm -40°C ~ +85°C Datasheet Inventory
34B ECX 31 ECS-.327-12.5-12R-TR 32.768 kHz ±20ppm -40°C ~ +85°C Datasheet Inventory
34B ECX 31 ECS-.327-9-12R-C-TR 32.768 kHz ±10ppm -40°C ~ +85°C Datasheet Inventory
34B ECX 31 ECS-.327-7-12R-TR 32.768 kHz ±20ppm -40°C ~ +85°C Datasheet Inventory
34B ECX 31 ECS-.327-6-12R-TR 32.768 kHz ±20ppm -40°C ~ +85°C Datasheet Inventory

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

About ECS

Founded in 1980, ECS Inc. International has grown to become one of the most recognized and experienced manufacturers of frequency control management products in the world.
Learn More

Reach Out to ECS

15351 West 109th Street, Lenexa, KS 66219
© ECS Inc. International. All Rights Reserved. | Terms of Use

Please publish modules in offcanvas position.