18QHTF21-117.675-PD

Overview

The 18QHTF21-117.675-PD is a crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 117.675 MHz with an LVCMOS output logic level. The device supports a supply voltage of 1.8V and features a standby mode for power down functionality. It is housed in a compact 4-SMD, No Lead package suitable for surface mount applications.

Feature Summary

• LVCMOS output interface
• Standby (Power Down) control capability
• Compact 4-SMD No Lead package

Applications

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

Procurement Notes

Verify the specific ordering suffix to confirm the enable/disable or standby function variant matches the design requirement. Ensure the supply voltage and output logic levels are compatible with the target circuit. Confirm the package dimensions and pinout against the official datasheet before integration.

Selection Notes

Select this component when a precise 117.675 MHz clock source is required with low voltage operation. Consider the standby feature if power management during idle states is necessary. Evaluate the small form factor against available PCB space constraints.

Part Context

This part belongs to the Mercury Electronics XO series, which provides standard crystal oscillators. The manufacturer has extensive experience in quartz crystal production since 1973. This specific model utilizes a surface mount package for automated assembly processes.

Replacement Considerations

Check for direct substitutes within the same frequency and package family. Verify electrical compatibility including voltage and logic levels before swapping components.