18QHTF21-7.37472-OE

Overview

The 18QHTF21-7.37472-OE is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a nominal frequency of 7.37472 MHz and utilizes LVCMOS output logic levels. The device supports a supply voltage range typically centered around 1.8V, with integrated enable/disable functionality for power management. It is housed in a compact 4-SMD, no-lead package designed for surface-mount assembly.

Feature Summary

• LVCMOS output interface for digital logic compatibility
• Integrated enable/disable control pin for power optimization
• Compact 4-SMD no-lead surface-mount package design

Applications

• General-purpose clock signal generation
• Microcontroller system timing references
• Embedded digital circuit synchronization

Procurement Notes

Verify the specific operating voltage and load capacitance requirements against the target circuit design before procurement. Confirm that the 4-SMD no-lead package footprint matches the PCB layout specifications. Ensure the enable/disable pin configuration aligns with the system's power control logic to prevent unintended operation or excessive current draw during idle states.

Selection Notes

Select this component when a low-voltage, small-footprint oscillator is required for 7.37472 MHz applications. The LVCMOS output ensures direct interfacing with standard digital inputs without additional level shifting. Consider the enable feature if power conservation is critical. Verify thermal and mechanical constraints associated with the SMD package for reliable soldering and long-term stability.

Part Context

This part belongs to the 18QHTF21 series of standard crystal oscillators from Mercury Electronics. The series offers various frequencies and voltage options within a consistent 4-SMD form factor. These components are designed for general timing applications requiring stable clock signals in consumer electronics and industrial equipment.

Replacement Considerations

Direct substitutes must match the 7.37472 MHz frequency, LVCMOS output type, 1.8V supply, and 4-SMD package. Verify pinout compatibility for the enable function. Cross-reference with other manufacturers' 3225-sized or equivalent SMD oscillators offering identical electrical characteristics.