18QHTF21-7.470-OE

Overview

The 18QHTF21-7.470-OE is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 7.47 MHz and utilizes LVCMOS output logic. The device functions with a supply voltage of 1.8V and includes an enable/disable control feature. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0x1.6 mm.

Feature Summary

• Integrates LVCMOS output logic for standard digital interface compatibility
• Features an enable/disable pin for power management control
• Utilizes a leadless SMD package for surface-mount assembly

Applications

• General clock signal generation in electronic circuits
• Timing reference sources for digital systems
• Embedded system clock inputs

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against the target circuit design before procurement. Confirm that the 1.8V supply voltage aligns with the system power rails. Ensure the 4-SMD no-lead footprint matches the PCB land pattern to guarantee proper soldering and mechanical stability during operation.

Selection Notes

Select this component when a precise 7.47 MHz timing source is required for low-voltage digital applications. Consider the LVCMOS output swing and the enable functionality for power-sensitive designs. Evaluate the physical size constraints to ensure the 2.0x1.6 mm package fits within the available board space without interfering with adjacent components.

Part Context

This oscillator belongs to the 18QHTF21 series from Mercury Electronic, which specializes in quartz frequency control products. The series offers various standard frequencies tailored for consumer electronics and industrial applications. Mercury Electronic has established a history in manufacturing quartz crystals, providing reliable timing solutions for global markets.

Replacement Considerations

Direct substitutes include other 7.47 MHz LVCMOS oscillators in identical 4-SMD packages with matching 1.8V supply requirements. Verify pinout compatibility and electrical specifications such as phase noise and jitter before swapping. Alternative part numbers from different manufacturers must meet the same dimensional and functional criteria.