18QHTF21-118.490-OE

Oscillators Overview

The 18QHTF21-118.490-OE is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a nominal frequency of 118.49 MHz and utilizes LVCMOS output logic. The device is designed for 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 2.0mm x 1.6mm. The component exhibits a frequency stability of 50 ppm and has a maximum supply current of 28 mA.

Oscillators Feature Summary

• Supports enable and disable control functionality for power management
• Utilizes LVCMOS output logic for digital interface compatibility
• Employs a crystal base resonator for frequency generation

Oscillators Applications

• General clock signal generation in electronic circuits
• Digital system timing references
• Embedded systems requiring precise frequency control

Oscillators Procurement Notes

Verify the specific ordering suffix to ensure the correct voltage and control options are selected. Confirm that the 4-SMD no lead package dimensions align with the target PCB footprint. Ensure the LVCMOS output voltage levels match the receiving input requirements of the connected logic devices to prevent signal integrity issues.

Oscillators Selection Notes

Select this component when a 118.49 MHz clock source is required with low power consumption capabilities. The enable/disable feature makes it suitable for battery-operated applications where power saving modes are necessary. Consider the 50 ppm stability requirement against the system's timing tolerance needs before finalizing the design.

Oscillators Part Context

This part belongs to the QHTF series of surface-mount oscillators from Mercury Electronics. The series offers various frequencies and voltage options within a small form factor. The 'OE' suffix typically denotes the enable/disable control variant, distinguishing it from continuous operation models.

Oscillators Replacement Considerations

Direct substitutes include other 118.49 MHz LVCMOS oscillators in 2.0x1.6mm packages with similar current ratings. Verify pinout compatibility and voltage levels when considering alternatives from different manufacturers.