18QHTF21-62.400-PD

Overview

The 18QHTF21-62.400-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 62.4 MHz and utilizes LVCMOS output logic. The device functions with a supply voltage of 1.8V and includes a standby or power-down feature 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 space-constrained electronic systems.

Feature Summary

• LVCMOS output logic for digital interface compatibility
• Integrated standby or power-down functionality
• Compact surface-mount package design

Applications

• General purpose clock signal generation
• Digital circuit timing reference
• Embedded system clock sources

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against the target circuit design before procurement. Confirm that the 1.8V supply voltage aligns with the system power rails. Ensure the PCB footprint matches the 4-SMD No Lead package dimensions to prevent assembly issues. Check for any specific reflow soldering profile recommendations provided by the manufacturer to ensure reliability during manufacturing.

Selection Notes

Select this component when a low-voltage, small-form-factor oscillator is required for digital interfaces. The LVCMOS output is suitable for direct connection to most modern digital logic families. Consider the power-down feature if energy efficiency is a priority in portable or battery-operated devices. Verify that the operating temperature range meets the environmental conditions of the intended application.

Part Context

This part belongs to the 18QHTF21 series of surface-mount crystal oscillators from Mercury Electronics. The series offers various frequencies and voltages, all sharing a common compact 2.0x1.6mm footprint. The 'PD' suffix indicates the inclusion of a power-down control pin, distinguishing it from standard continuous-operation variants within the same package family.

Replacement Considerations

Direct substitutes include other 18QHTF21 series parts with identical frequency and voltage, such as 18QHTF21-51.200-PD or 18QHTF21-77.760-PD, provided the frequency requirement changes. Cross-brand replacements must match the 4-SMD No Lead package, 1.8V supply, LVCMOS output, and 62.4 MHz frequency exactly.