18QHTF21-10.6985-OE

Overview

The 18QHTF21-10.6985-OE is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 10.6985 MHz and utilizes LVCMOS output logic levels. The device is designed for low-voltage applications, requiring a supply voltage of 1.8V. A key functional characteristic is the inclusion of an Enable/Disable control pin, allowing for power management during inactive periods. The component is housed in a compact 4-SMD, No Lead package, suitable for surface-mount assembly processes.

Feature Summary

• LVCMOS output interface
• Enable/Disable functionality
• Standard XO type

Applications

• General-purpose clock signal generation
• Digital circuit timing reference
• Embedded system clock sources

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your design specifications before ordering. Confirm that the 1.8V supply voltage aligns with your target system's power rails. Ensure the 4-SMD package footprint matches your PCB layout constraints. Request the official datasheet from Mercury Electronics to validate electrical characteristics and reliability standards for your application environment.

Selection Notes

Select this component when a precise 10.6985 MHz clock source is required with low-power operation capabilities. The LVCMOS output ensures compatibility with standard digital logic families operating at 1.8V. Consider the Enable/Disable feature if power conservation is critical. Verify that the operating temperature range meets your environmental conditions. Compare performance metrics such as phase noise and stability against alternative oscillators if high-precision timing is essential.

Part Context

This part belongs to the Mercury Electronic series of quartz crystal oscillators. Mercury Electronic has been manufacturing frequency control products since 1973 and is recognized as a pioneer in the Taiwan quartz industry. The company specializes in various timing components including crystals, TCXOs, and VCTCXOs. This specific model represents their standard XO lineup designed for modern low-voltage electronic applications.

Replacement Considerations

Direct substitutes include other 10.6985 MHz LVCMOS oscillators with identical 1.8V supply and 4-SMD No Lead packaging. Verify pinout compatibility and electrical parameters before swapping manufacturers. Alternative models within the same family may offer different frequency options but maintain similar form factors.