CM309E4800000ABJT

Crystals Overview

The CM309E4800000ABJT is a surface-mount AT-cut crystal oscillator manufactured by Citizen Finedevice. It operates at a fundamental frequency of 4.8 MHz with a load capacitance of 18 pF. The component features a frequency tolerance of ±30 ppm and a frequency stability of ±50 ppm over the operating temperature range. It exhibits an equivalent series resistance (ESR) of 80 Ohms and supports a maximum drive level of 100 µW. The device is housed in a compact 4-SOJ package with a 9.60 mm pitch, designed for reliable integration into electronic circuits.

Crystals Feature Summary

• AT-cut quartz resonator technology ensures stable oscillation characteristics.
• Surface-mount design facilitates automated PCB assembly processes.
• Compact 4-SOJ package optimizes board space utilization.

Crystals Applications

• Microcontroller clock sources
• Communication interface timing
• Digital signal processing systems

Crystals Procurement Notes

Verify the specific suffix configuration against official manufacturer documentation to ensure compatibility with target circuit requirements. Confirm that the selected variant meets all necessary environmental and electrical specifications for the intended application environment before finalizing procurement decisions.

Crystals Selection Notes

Select this component when a 4.8 MHz reference signal is required in a surface-mount format. Ensure the design accommodates the 18 pF load capacitance and 80 Ohm ESR parameters. Verify that the operating temperature range aligns with the system's thermal constraints and that the drive level remains within safe limits.

Crystals Part Context

This part belongs to the CM309E series of surface-mount crystals from Citizen Finedevice. These components are engineered for general-purpose timing applications requiring precise frequency control. The series offers various frequency options within standardized packages to support diverse electronic design needs across consumer and industrial sectors.

Crystals Replacement Considerations

No public substitute part numbers are confirmed in available documentation.