18QHTF21-50.0565-PD

Overview

The 18QHTF21-50.0565-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 50.0565 MHz with an LVCMOS output logic level. The device requires a supply voltage of 1.8V and features a standby or power-down function for energy management. It is housed in a compact 4-SMD, no lead package with dimensions of 2.0 x 1.6 mm. This component is designed for applications requiring precise timing signals within low-power electronic systems.

Feature Summary

• Supports standby mode for power reduction
• Utilizes LVCMOS output interface
• Compact surface-mount packaging

Applications

• Portable electronic devices
• Communication equipment
• Consumer electronics

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your circuit design before procurement. Ensure the 1.8V supply rail stability matches the datasheet specifications to maintain signal integrity. Confirm that the PCB footprint aligns with the 2.0x1.6mm SMD package dimensions to prevent assembly issues during manufacturing.

Selection Notes

Select this model when a low-voltage 1.8V operation is required alongside a standard LVCMOS interface. The integrated power-down feature makes it suitable for battery-operated applications where standby current consumption is critical. Consider the small form factor for space-constrained designs needing reliable clock generation.

Part Context

This part belongs to the 18QHTF21 series from Mercury Electronics, which specializes in quartz crystal frequency control products. The series includes various frequencies and packages, catering to diverse timing needs. Mercury Electronics has a long history in the quartz industry, providing reliable components for global markets.

Replacement Considerations

Check for direct substitutes within the same series offering identical pinout and electrical characteristics. Verify compatibility with existing firmware if the replacement has different startup times or jitter specifications. Ensure the alternative maintains the same 1.8V operating voltage and LVCMOS output type.