18QHTF21-49.4867-OE

Overview

The 18QHTF21-49.4867-OE is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 49.4867 MHz with an LVCMOS output interface. The device supports a supply voltage of 1.8V and features enable/disable functionality. It offers a frequency stability of ±50ppm and functions within an operating temperature range of -40°C to 85°C. The maximum supply current is specified as 23mA. The component utilizes a 4-SMD, No Lead package for surface mount applications.

Feature Summary

• LVCMOS output interface
• Enable/Disable control function
• Surface mount package

Applications

• High-performance timing circuits
• Embedded systems requiring precise clock signals
• Consumer electronics with low power requirements

Procurement Notes

Verify the specific frequency tolerance and package dimensions against the official datasheet before integration. Confirm that the 1.8V supply voltage aligns with the target system design. Ensure the enable/disable pin configuration matches the control logic requirements. Check for any RoHS compliance documentation if required by the manufacturing process.

Selection Notes

Select this component when a stable 49.4867 MHz clock source is required in a compact form factor. The LVCMOS output is suitable for direct interfacing with digital logic families. Consider the ±50ppm stability for applications where moderate frequency accuracy is sufficient. The wide operating temperature range supports use in varied environmental conditions.

Part Context

This oscillator belongs to the 18QHTF21 series from Mercury Electronics, designed for general-purpose timing applications. The series typically includes various frequencies and voltage options. Mercury Electronics specializes in quartz crystals and oscillators, providing components for telecommunications and industrial markets. This specific model represents a standard XO variant optimized for cost-effective performance.

Replacement Considerations

Direct substitutes include other 49.4867 MHz LVCMOS oscillators with identical 4-SMD no-lead packages and 1.8V operation. Verify pin compatibility and electrical specifications such as current consumption and stability before substitution.