18QHTF21-7.3278-PD

Overview

The 18QHTF21-7.3278-PD is a 7.3278 MHz crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It utilizes LVCMOS output logic and operates at a supply voltage of 1.8V. The device features a standby mode for power down functionality. It is housed in a compact 4-SMD, No Lead package.

Feature Summary

• Supports LVCMOS output signal format
• Includes standby capability for power management

Applications

• General purpose clock generation
• Digital circuit timing reference
• Embedded system synchronization

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against the target application design. Confirm that the 1.8V supply voltage aligns with the system power rails. Ensure the 4-SMD no lead package footprint matches the PCB layout constraints before finalizing procurement decisions.

Selection Notes

Select this component when a low-voltage 1.8V operation is required alongside standard LVCMOS compatibility. The integrated standby feature makes it suitable for battery-powered or energy-efficient designs. Consider the physical dimensions of the 4-SMD package to ensure adequate space on the printed circuit board.

Part Context

This part belongs to the Mercury Electronics XO series, which provides surface mount quartz oscillators. The manufacturer specializes in frequency control products with extensive industry experience. This specific model represents a standard frequency option within their portfolio of clock generators.

Replacement Considerations

Cross-reference compatible parts such as 18QHTF21-7.32781-OE for alternative packaging or voltage variants. Verify pinout compatibility and electrical specifications before substituting with other manufacturers' offerings.