18QHTF21-112.410-PD

Overview

The 18QHTF21-112.410-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 112.41 MHz and utilizes LVCMOS output logic. The device is designed for a supply voltage of 1.8V and includes a standby or power-down function. It is housed in a compact 4-SMD, no lead package, suitable for surface-mount applications requiring precise timing signals.

Feature Summary

• Supports LVCMOS output logic for digital interface compatibility
• Includes standby mode functionality for power management
• Utilizes a 4-SMD no lead surface mount package

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 4-SMD footprint matches the PCB layout constraints. Check for any specific handling precautions related to the no-lead package type during assembly processes.

Selection Notes

Select this component when a 112.41 MHz clock source is required with low voltage operation. Consider the LVCMOS output level compatibility with downstream logic families. Evaluate the physical size constraints of the 4-SMD package against available board space. Assess the power consumption benefits of the standby feature if dynamic power management is part of the system architecture.

Part Context

This part belongs to the 18QHTF21 series from Mercury Electronics, which offers various frequencies within a standardized form factor. The series typically supports multiple output logic types and supply voltages. The -PD suffix likely indicates a specific packaging or tape-and-reel configuration, though exact details require datasheet confirmation. This model represents a specific frequency variant within the broader product line.

Replacement Considerations

Direct substitutes must match the 112.41 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD package dimensions. Verify pinout compatibility and electrical characteristics such as jitter and phase noise. Cross-reference with other manufacturers offering similar XO specifications in the same footprint.