18QHTF21-25.3125-OE

Oscillators Overview

The 18QHTF21-25.3125-OE is a quartz crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 25.3125 MHz and utilizes LVCMOS output logic. The device supports a supply voltage of 1.8V and includes an enable/disable control function. It is housed in a compact 4-SMD, No Lead package, designed for surface-mount applications requiring precise timing signals.

Oscillators Feature Summary

• Integrates LVCMOS output logic for standard digital interface compatibility
• Features integrated enable and disable control functionality
• Utilizes a leadless 4-SMD surface-mount package design

Oscillators Applications

• General purpose clock signal generation
• Digital system timing reference
• Embedded controller clock sources

Oscillators Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against the target circuit design before procurement. Confirm that the 1.8V supply voltage aligns with the system power rails. Ensure the PCB footprint matches the 4-SMD, No Lead package dimensions provided in the official datasheet to guarantee proper soldering and mechanical stability during assembly.

Oscillators Selection Notes

Select this component when a low-voltage 1.8V operation is required alongside LVCMOS signaling standards. The enable/disable feature allows for power management optimization in battery-operated devices. Consider the small form factor of the 4-SMD package for space-constrained layouts where traditional leaded packages are unsuitable.

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, including 2.5V variants. The '18' prefix indicates the 1.8V supply requirement, distinguishing it from higher voltage counterparts within the same product family line.

Oscillators Replacement Considerations

Direct substitutes must match the 25.3125 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD package. Verify pinout compatibility and thermal characteristics. Cross-reference with other manufacturers offering similar leadless SMD oscillators if availability is constrained.