18QHTF21-14.218-PD

Oscillators Overview

The 18QHTF21-14.218-PD is a quartz crystal oscillator manufactured by Mercury Electronics Ind. Co., Ltd. It operates at a nominal frequency of 14.218 MHz with LVCMOS output logic. The device requires a 1.8V supply voltage and features a Standby (Power Down) control function for power management. It is housed in a compact 4-SMD, No Lead package suitable for surface-mount assembly. The component supports an operating temperature range typical for commercial applications.

Oscillators Feature Summary

• Integrates LVCMOS output logic for standard digital interface compatibility
• Includes Standby (Power Down) functionality to reduce power consumption
• Utilizes quartz resonator technology for stable frequency generation
• Designed in a small form factor 4-SMD No Lead package

Oscillators Applications

• Battery-powered portable electronic devices
• General-purpose digital systems requiring precise timing
• Embedded controllers and microprocessor clock sources

Oscillators Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your circuit design before procurement. Confirm that the 1.8V supply voltage aligns with your system's power rails. Ensure the PCB footprint matches the 4-SMD No Lead package dimensions provided in the official datasheet. Check for any specific RoHS compliance or environmental certifications required by your manufacturing standards.

Oscillators Selection Notes

Select this component when a low-voltage 1.8V operation is required alongside a standby feature for energy efficiency. The LVCMOS output is suitable for direct interfacing with standard CMOS logic families. Consider the 14.218 MHz frequency specifically if it matches your system clock needs without requiring additional dividers. The compact package size makes it appropriate for space-constrained designs.

Oscillators Part Context

This part belongs to the 18QHTF21 series of surface-mount crystal oscillators from Mercury Electronics. The series offers various frequencies and voltage options, all sharing the same physical package and basic functional architecture. The 'PD' suffix typically indicates the inclusion of a power-down pin or feature, distinguishing it from standard continuous-operation variants within the same family.

Oscillators Replacement Considerations

Direct replacements must match the 14.218 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD No Lead package. Verify that substitute components support the Standby function if power management is critical. Cross-reference electrical parameters such as current consumption and phase noise to ensure equivalent performance in the target application.