18QHTF21-2.500-PD

Oscillators Overview

The 18QHTF21-2.500-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 2.5 MHz and utilizes LVCMOS output logic levels. The device supports a supply voltage of 1.8V and includes a power-down feature for standby mode. It is housed in a compact 4-SMD, no-lead package with dimensions of 2.0x1.6 mm.

Oscillators Feature Summary

• LVCMOS output interface for digital signal compatibility
• Integrated power-down control for energy efficiency
• Compact surface-mount package design

Oscillators Applications

• Battery-powered portable electronic devices
• Low-power consumer electronics systems
• Digital clock generation circuits

Oscillators Procurement Notes

Verify the specific suffix 'PD' indicates the power-down functionality as documented. Confirm the 1.8V operating voltage requirement matches the target circuit design. Ensure the 4-SMD no-lead package footprint aligns with the PCB layout specifications before ordering.

Oscillators Selection Notes

Select this component when a low-frequency 2.5 MHz reference is required with minimal power consumption. The LVCMOS output is suitable for direct interfacing with standard digital logic families. Consider the small form factor for space-constrained applications requiring precise timing.

Oscillators Part Context

This model belongs to the Mercury QHTF series of surface-mount oscillators. The series offers various frequencies and voltage options. The 18QHTF21 variant specifically denotes the 1.8V supply and 2.0x1.6mm package size within the product line.

Oscillators Replacement Considerations

Direct substitutes include other 2.5 MHz LVCMOS oscillators in 4-SMD packages from compatible manufacturers. Verify pinout compatibility and electrical specifications match exactly before substitution.