ECX-1210B Ultra-Miniature SMD Tuning Fork Crystal
Featured Product from ECS Inc. International

The ECX-1210B is a miniature 1.2 x 1.0 mm 32.768 kHz tuning fork crystal featuring a frequency tolerance of ±20 ppm and an ESR of 80kΩ, providing low energy consumption. Additional features include an extended operating temperature of -40°C ~ +105°C and load capacitance options of 6pF, 7pF, 9pF and 12pF.
This is the smallest form factor available today and is ideal for precision timing in mobile, wireless, wearables, hearing aids and drug delivery devices, and is recommended for the STM32 via the AN2867.
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