18QHTF21-108.800-OE

Overview

The 18QHTF21-108.800-OE is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd, operating at a frequency of 108.8 MHz. It utilizes LVCMOS output logic and functions with a supply voltage of 1.8V. The device features an enable/disable control capability for power management. It is housed in a compact 4-SMD, No Lead package, designed for surface-mount applications. This component serves as a precise clock signal source for electronic circuits requiring stable timing references.

Feature Summary

• Provides stable clock signals via LVCMOS output logic
• Supports active low or high enable/disable control for power optimization
• Utilizes a compact 4-SMD no-lead surface mount package

Applications

• Timing and clock signal generation in electronic devices
• Embedded systems requiring precise frequency references
• Consumer electronics utilizing surface-mount technology

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your circuit design before procurement. Ensure the 1.8V supply voltage aligns with your system's power rails. Confirm that the enable/disable pin configuration matches your control logic levels. Check the datasheet for absolute maximum ratings to prevent damage during operation.

Selection Notes

Select this model when a 108.8 MHz frequency is required with LVCMOS compatibility. Consider the 1.8V supply constraint and the need for enable/disable functionality. Evaluate the 4-SMD package size against available PCB space. Compare stability specifications if tighter tolerances are needed for your application environment.

Part Context

This part belongs to the 18QHTF series of crystal oscillators from Mercury Electronics. The series offers various frequencies and packages. The 18QHTF21 variant specifically denotes the 4-SMD no-lead form factor. Other models in the series share similar electrical characteristics but differ in frequency and package dimensions.

Replacement Considerations

Direct substitutes include other 108.8 MHz LVCMOS oscillators in 4-SMD packages with 1.8V operation. Verify pinout compatibility and enable/disable logic polarity. Check frequency stability and temperature range specifications to ensure equivalent performance in the target application.