18QHTF21-71.900-OE

Overview

The 18QHTF21-71.900-OE is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 71.9 MHz and utilizes LVCMOS output logic. The device supports a supply voltage of 1.8V and includes enable/disable functionality for power management. It is housed in a compact 4-SMD, No Lead package, suitable for surface-mount applications requiring precise timing signals.

Feature Summary

• Standard XO configuration with LVCMOS output
• Integrated enable/disable control
• Compact 4-SMD no lead package

Applications

• General purpose clock generation
• Digital signal processing systems
• Communication equipment timing

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your system design before ordering. Confirm that the 1.8V supply voltage aligns with your power rails. Ensure the 4-SMD footprint matches your PCB layout constraints. Cross-reference the manufacturer datasheet for absolute maximum ratings to prevent component damage during operation.

Selection Notes

Select this component when a stable 71.9 MHz reference is required with low power consumption capabilities. The LVCMOS interface ensures compatibility with standard digital logic families. Consider the enable pin feature if dynamic power saving is necessary. Verify operating temperature range suitability for the intended environment.

Part Context

This part belongs to the 18QHTF21 series from Mercury Electronics, which offers various frequencies within the same package form factor. The series provides standard XO solutions with LVCMOS outputs. Other variants in this family share similar electrical characteristics but differ in nominal frequency specifications.

Replacement Considerations

Direct substitutes must match the 71.9 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD package. Check equivalent parts from other manufacturers ensuring identical pinout and electrical parameters.