18QHTF21-61.440-PD

Overview

The 18QHTF21-61.440-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 61.44 MHz and utilizes LVCMOS output logic. The device is designed for a supply voltage of 1.8V and includes a standby or power-down function. It is housed in a compact 4-SMD, No Lead package, suitable for surface-mount applications requiring precise timing signals.

Feature Summary

• Supports low-voltage operation with 1.8V supply requirement
• Integrates standby mode for power management
• Provides LVCMOS output signal compatibility

Applications

• Digital signal processing systems
• Communication equipment clocking
• Embedded system timing references

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against the official datasheet before procurement. Confirm that the 1.8V supply voltage aligns with the target circuit design. Ensure the 4-SMD no-lead package dimensions fit the available PCB footprint. Check for any specific handling instructions regarding electrostatic discharge sensitivity during assembly.

Selection Notes

Select this component when a stable 61.44 MHz reference is required for LVCMOS-compatible digital circuits. The choice depends on the necessity for a 1.8V operating voltage and the availability of a 4-pin SMD footprint. Consider the power-down feature if energy efficiency during idle states is a critical design parameter for the application.

Part Context

This part belongs to the 18QHTF21 series from Mercury Electronics, which specializes in quartz-based frequency control products. The manufacturer has extensive experience in producing crystals, oscillators, and filters. This series typically targets applications demanding reliable timing solutions in consumer electronics and industrial devices.

Replacement Considerations

Direct substitutes must match the 61.44 MHz frequency, LVCMOS output, 1.8V voltage, and 4-SMD package. Verify pinout compatibility and electrical specifications with alternative manufacturers offering similar surface-mount oscillators.