18QHTF21-28.63663-PD

Oscillators Overview

The 18QHTF21-28.63663-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 28.63663 MHz and utilizes LVCMOS output logic. The device supports a supply voltage of 1.8V and includes a standby function for power down control. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0x1.6mm.

Oscillators Feature Summary

• Supports low voltage operation at 1.8V
• Includes standby capability for power management
• Utilizes LVCMOS output interface

Oscillators Applications

• General clock signal generation
• Embedded system timing
• Portable electronic devices

Oscillators Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your circuit design before procurement. Ensure the 1.8V supply rail stability meets the oscillator's operational specifications. Confirm that the PCB footprint matches the 4-SMD no-lead package dimensions to ensure proper assembly and electrical connection.

Oscillators Selection Notes

Select this component when a precise 28.63663 MHz clock source is required in space-constrained designs. The choice is driven by the need for low power consumption via the standby feature and compatibility with 1.8V logic families. Consider the small form factor as a primary advantage for dense board layouts.

Oscillators Part Context

This part belongs to the 18QHTF21 series from Mercury Electronics, which offers various frequencies within a standardized 2.0x1.6mm package. The series provides consistent performance characteristics across different frequency options, allowing designers to maintain uniform thermal and mechanical profiles while varying only the clock speed.

Oscillators Replacement Considerations

Direct substitutes include other 18QHTF21 variants with compatible pinouts such as 18QHTF21-51.200-PD or 18QHTF21-8.000-PD, provided the frequency difference is acceptable for the application. Cross-brand replacements require verification of LVCMOS output levels and package dimensions.