18QHTF21-27.042-OE

Oscillators Overview

The 18QHTF21-27.042-OE is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a nominal frequency of 27.042 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, suitable for surface-mount applications requiring precise timing signals.

Oscillators Feature Summary

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

Oscillators Applications

• General purpose clock signal generation
• Embedded system timing references
• Consumer electronics circuit boards

Oscillators Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against the target circuit design before procurement. Ensure the 1.8V supply voltage aligns with the system power rails. Confirm that the enable/disable pin configuration matches the host controller's GPIO capabilities to ensure proper operational control during standby modes.

Oscillators Selection Notes

Select this component when a low-voltage 1.8V operation is required alongside a standard LVCMOS output. The 4-SMD package offers space efficiency for dense PCB layouts. Consider the enable feature if power management during inactive periods is a design priority. Verify that the 27.042 MHz frequency meets the specific data rate or clocking needs of the application.

Oscillators Part Context

This part belongs to the 18QHTF21 series of surface-mount oscillators from Mercury Electronics. The series typically includes various frequencies and voltage options. The 'OE' suffix often denotes specific packaging or tape-and-reel configurations, though exact details require datasheet confirmation. This model represents a standard XO variant within the manufacturer's portfolio.

Oscillators Replacement Considerations

Direct substitutes must match the 27.042 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD package dimensions. Check equivalent models from other manufacturers offering compatible pinouts and electrical characteristics. Ensure thermal and environmental specifications meet the original design constraints.