18QHTF21-25.0075-PD

Oscillators Overview

The 18QHTF21-25.0075-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 25.0075 MHz and utilizes LVCMOS output logic levels. The device is designed for a supply voltage of 1.8V and features a standby or power-down mode capability to reduce consumption when inactive. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0x1.6mm, suitable for surface-mount applications requiring precise timing signals.

Oscillators Feature Summary

• Supports low-voltage operation at 1.8V
• Includes standby and power-down functionality
• Utilizes LVCMOS output interface

Oscillators Applications

• Portable electronic devices requiring low power consumption
• Communication equipment needing stable clock signals
• Embedded systems utilizing LVCMOS compatible interfaces

Oscillators Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your circuit design before procurement. Confirm that the 1.8V supply voltage aligns with your system's power rails. Ensure the 4-SMD no-lead package footprint matches your PCB layout constraints. Request the official datasheet from Mercury Electronics for detailed electrical characteristics and reliability data.

Oscillators Selection Notes

Select this component when a 25.0075 MHz clock source is required with minimal power usage. The 1.8V operating voltage makes it suitable for battery-powered or energy-efficient designs. The LVCMOS output ensures compatibility with standard digital logic families. Consider the small 2.0x1.6mm package size if space is limited on the printed circuit board.

Oscillators Part Context

This part belongs to the QHTF series of surface-mount oscillators from Mercury Electronics. The '18' prefix typically indicates the 1.8V supply voltage variant, while '21' denotes the package style. The '-PD' suffix confirms the inclusion of power-down control capabilities. This series is engineered for high stability and low phase noise in compact form factors.

Oscillators Replacement Considerations

Direct replacements must match the 25.0075 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD no-lead package. Verify pinout compatibility and thermal performance. Check manufacturer-specific tolerances for frequency stability and temperature range differences.