18QHTF21-57.405-OE

Overview

The 18QHTF21-57.405-OE is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co., Ltd. It operates at a frequency of 57.405 MHz and utilizes LVCMOS output logic levels. 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, designed for surface-mount applications requiring precise timing signals.

Feature Summary

• Provides stable 57.405 MHz clock signal generation
• Integrates LVCMOS output interface for digital compatibility
• Features low-voltage operation with power control capabilities

Applications

• Digital signal processing systems
• Communication equipment timing references
• Embedded microcontroller clock sources

Procurement Notes

Verify the specific suffix (OE vs PD) against the manufacturer's current datasheet to ensure correct packaging and availability status. Confirm that the 1.8V supply requirement aligns with the target circuit design before procurement. Check for lead-free compliance if required by project specifications.

Selection Notes

Select this component when a fixed 57.405 MHz frequency is required with LVCMOS outputs. Ensure the PCB footprint accommodates the 4-SMD no-lead package dimensions. Validate that the system power rail provides a stable 1.8V source to meet the electrical specifications.

Part Context

This part belongs to the Mercury Electronics series of surface-mount crystal oscillators. These components are designed for high-reliability timing applications in consumer electronics and industrial devices. The series offers various frequencies and voltage options within standardized packages.

Replacement Considerations

Direct substitutes include other 57.405 MHz LVCMOS oscillators in 4-SMD packages from manufacturers such as Epson or SiTime. Verify pinout compatibility and thermal characteristics before substitution.