18QHTF21-7.9925-OE

Overview

The 18QHTF21-7.9925-OE is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a nominal frequency of 7.9925 MHz and utilizes LVCMOS output logic. The device requires a supply voltage of 1.8V and features an enable/disable control function. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0x1.6 mm. This component is designed for timing applications requiring precise frequency generation within low-power electronic systems.

Feature Summary

• LVCMOS output logic for digital interface compatibility
• Integrated enable and disable control functionality
• Compact surface-mount package design

Applications

• General purpose timing circuits
• Embedded system clock sources
• Consumer electronics timing references

Procurement Notes

Verify the specific frequency tolerance and stability requirements against your application needs before procurement. Ensure that the 1.8V supply voltage aligns with your system's power architecture. Confirm that the LVCMOS output levels are compatible with the receiving logic inputs. Check the physical footprint compatibility with your PCB layout to ensure proper soldering and mechanical stability during assembly processes.

Selection Notes

Select this component when a low-profile, 1.8V powered oscillator is required for standard digital timing applications. Consider the 4-SMD package size for space-constrained designs. Evaluate the need for enable/disable control if power management is critical. Compare against other frequencies in the 18QHTF21 series if different clock speeds are needed while maintaining the same form factor and electrical characteristics.

Part Context

This part belongs to the 18QHTF21 series of surface-mount crystal oscillators from Mercury Electronics. The series offers various standard frequencies with consistent electrical specifications and packaging. These oscillators are designed for high reliability in consumer and industrial applications. The manufacturer provides a range of options within this family to suit different timing requirements while maintaining uniform interface and mechanical standards.

Replacement Considerations

Compatible substitutes include other 18QHTF21 series variants with identical pinout and electrical parameters but different frequencies, such as 18QHTF21-6.000-OE or 18QHTF21-50.256-OE, provided the frequency difference is acceptable for the application.