CM309E24000000ABJT

Crystals Overview

The CM309E24000000ABJT is a surface-mount AT-cut crystal unit manufactured by Citizen Finedevice. It operates at a fundamental frequency of 24.0000 MHz with a load capacitance of 18 pF. The component features a frequency tolerance of ±30 ppm and a frequency stability of ±50 ppm within an operating temperature range of -10°C to +60°C. It utilizes a 4-SOJ package measuring 11.70 mm in length, 4.00 mm in width, and 3.70 mm in maximum height. The equivalent series resistance (ESR) is specified at 40 Ohms, and the shunt capacitance is limited to 5.0 pF maximum.

Crystals Feature Summary

• AT-cut quartz resonator technology for stable oscillation
• Surface mount design compatible with automated assembly processes
• Low drive level specification of 100 μW to ensure longevity

Crystals Applications

• General-purpose clock signal generation in electronic circuits
• Timing reference sources for microcontroller systems
• Frequency control in communication modules

Crystals Procurement Notes

Verify the specific suffix against official manufacturer documentation to confirm exact electrical parameters such as load capacitance and tolerance. Ensure compatibility with the target circuit's oscillator configuration and thermal requirements before integration.

Crystals Selection Notes

Select this component when a standard 24 MHz surface-mount crystal is required for timing applications. Consider the 18 pF load capacitance requirement and the specific operating temperature range limits during the design phase to ensure reliable performance.

Crystals Part Context

This part belongs to the CM309E series of AT-cut crystal units from Citizen FineDevice. The series offers various frequencies and packages designed for surface-mount technology. This specific model provides a common 24 MHz frequency point for digital system clocks.

Crystals Replacement Considerations

Direct substitutes include other 24 MHz SMD crystals with matching 18 pF load capacitance and similar physical dimensions. Verify pinout compatibility and electrical specifications before cross-referencing with alternative manufacturers.