18QHTF21-4.825-OE

Oscillators Overview

The 18QHTF21-4.825-OE is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 4.825 MHz and utilizes LVCMOS output logic levels. The device is designed for low-voltage applications, functioning with a supply voltage of 1.8V. A key functional characteristic is the inclusion of an enable/disable control pin, allowing for power management within the host circuit. The component is housed in a compact 4-SMD, no-lead package, suitable for surface-mount assembly processes.

Oscillators Feature Summary

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

Oscillators Applications

• General-purpose timing reference for digital circuits
• Clock source for microcontrollers operating at 1.8V
• Embedded systems requiring low-power oscillation

Oscillators Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against the target system design before procurement. Confirm that the 1.8V supply voltage aligns with the available power rails in the application. Ensure the PCB footprint matches the 4-SMD no-lead package dimensions provided in the official datasheet to prevent assembly errors.

Oscillators Selection Notes

Select this component when a precise 4.825 MHz clock signal is required for 1.8V logic families. The enable/disable feature makes it suitable for battery-powered or power-sensitive designs where idle power consumption must be minimized. Consider the thermal characteristics and stability requirements of the operating environment to ensure long-term reliability.

Oscillators Part Context

This part belongs to the 18QHTF21 series of standard crystal oscillators from Mercury Electronics. The series typically offers various frequency options within a standardized small outline package. The suffix OE indicates the presence of an output enable function, distinguishing it from basic continuous-output variants within the same physical form factor.

Oscillators Replacement Considerations

Direct replacements must match the 4.825 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD no-lead package. Verify that substitute components also support the enable/disable control pin configuration to maintain identical power management capabilities in the existing circuit design.