18QHTF21-59.370079-PD

Overview

The 18QHTF21-59.370079-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 59.370079 MHz and utilizes LVCMOS output logic levels. The device requires a 1.8V supply voltage and features a standby or power-down function to reduce consumption during inactive periods. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0mm x 1.6mm. This component is designed for applications requiring precise timing signals within low-voltage digital systems.

Feature Summary

• Integrates a standby mode for power reduction
• Provides LVCMOS signal output compatibility
• Utilizes a lead-free surface-mount package

Applications

• Low-voltage digital circuit timing
• Portable electronic devices requiring power efficiency
• Communication modules needing precise clock sources

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your system design before ordering. Confirm that the 1.8V supply rail is stable and within the operational limits specified in the official datasheet. Ensure the PCB footprint matches the 2.0x1.6mm SMD no-lead package dimensions to guarantee proper assembly and electrical connection.

Selection Notes

Select this model when a 59.370079 MHz clock source is required with LVCMOS interface compatibility. Consider the 1.8V operating voltage constraint and the availability of a power-down feature for energy management. Evaluate the physical size constraints of the 2.0x1.6mm package against the available board space. Compare performance against other Mercury oscillators if different frequencies or voltages are needed.

Part Context

This part belongs to the Mercury Electronics XO series, which specializes in quartz-based frequency control products. Mercury has a long history in Taiwan's quartz industry, providing reliable timing solutions. The 18QHTF21 series typically offers standard specifications suitable for general-purpose digital applications, balancing performance with cost-effectiveness for mass production environments.

Replacement Considerations

Direct substitutes include the 18QHTF21-51.200-PD and 18QHTF21-96.768-PD from the same manufacturer, provided the frequency difference is acceptable for the application. Other models in the 18QHTF21 family share similar packaging and voltage characteristics but differ in output frequency.