18QHTF21-60.000-PD

Overview

The 18QHTF21-60.000-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 60 MHz and utilizes LVCMOS output logic levels. The device is designed for low-voltage applications, functioning at 1.8V. It features a power-down capability via a standby control input to reduce energy consumption when not in use. The component is housed in a compact 4-SMD, no-lead package, suitable for surface-mount assembly on printed circuit boards.

Feature Summary

• Supports LVCMOS output interface for digital signal compatibility
• Includes standby mode for power-down functionality
• Utilizes a small form-factor SMD package

Applications

• General-purpose clock generation in embedded systems
• Timing reference for microprocessors and FPGAs
• Data communication interfaces requiring precise clock signals

Procurement Notes

Verify the specific voltage tolerance and load capacitance requirements against the target circuit design before procurement. Ensure that the PCB footprint matches the 4-SMD no-lead package dimensions provided in the official mechanical drawing. Confirm that the supply voltage aligns with the 1.8V specification to prevent operational failure or reduced lifespan.

Selection Notes

Select this component when a 60 MHz clock source with LVCMOS outputs is required in space-constrained designs. The integrated power-down feature makes it suitable for battery-operated devices where standby current reduction is critical. Compare performance metrics such as phase noise and stability against alternative oscillators if high-precision timing is necessary for the application.

Part Context

This model belongs to the SuperTan DLA series from Mercury Electronics, which focuses on low-power, high-stability oscillators. The 'PD' suffix indicates the inclusion of a power-down pin, distinguishing it from standard continuous-operation variants within the same frequency and package family.

Replacement Considerations

Direct replacements must match the 60 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD package. Verify pinout compatibility for the power-down function. Cross-reference with other manufacturers offering similar XO specifications if supply constraints exist.