18QHTF21-27.0027-PD

Oscillators Overview

The 18QHTF21-27.0027-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 27.0027 MHz and utilizes LVCMOS output logic. The device requires a supply voltage of 1.8V and features a standby (power down) function for energy management. 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 a small form factor.

Oscillators Feature Summary

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

Oscillators Applications

• General purpose clock signal generation
• Embedded systems requiring low voltage operation
• Portable electronic devices

Oscillators Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against the target circuit design before procurement. Ensure that the 1.8V supply rail is stable and within the specified operating range to maintain oscillator performance. Confirm that the PCB footprint matches the 2.0x1.6mm SMD package dimensions to ensure proper soldering and mechanical stability during assembly processes.

Oscillators Selection Notes

Select this component when a low-voltage, small-footage clock source is required. The LVCMOS output is suitable for digital logic interfaces. Consider the standby feature if power efficiency is a priority. Verify compatibility with the host system's voltage levels and current consumption limits. The specific frequency of 27.0027 MHz must match the system timing requirements exactly.

Oscillators Part Context

This part belongs to the 18QHTF21 series from Mercury Electronics, which offers various frequencies in a standardized 2.0x1.6mm package. The series provides options for different supply voltages and output types. The 'PD' suffix indicates the inclusion of a power-down control pin, allowing for active standby functionality. This series is designed for modern electronics requiring miniaturization and power management capabilities.

Oscillators Replacement Considerations

Direct substitutes include other 18QHTF21 variants with identical package and voltage specifications but different frequencies, such as 18QHTF21-25.000-PD or 18QHTF21-32.768-PD, provided the frequency difference is acceptable for the application. Cross-brand replacements require matching LVCMOS output, 1.8V supply, and 4-SMD no-lead package constraints.