18QHTF21-25.7815-PD

Oscillators Overview

The 18QHTF21-25.7815-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 25.7815 MHz and utilizes LVCMOS output logic. The device is designed for a supply voltage of 1.8V and features a power-down mode accessible via standby control. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0x1.6 mm.

Oscillators Feature Summary

• Supports low-voltage operation at 1.8V
• Includes power-down functionality for energy management
• Utilizes LVCMOS output interface

Oscillators Applications

• General clock signal generation
• Digital circuit timing reference
• Embedded system clock sources

Oscillators Procurement Notes

Verify the specific ordering suffix to confirm the package type and tape-and-reel configuration. Ensure the required operating temperature range aligns with the application environment. Confirm that the 1.8V supply voltage matches the target system design constraints before finalizing procurement.

Oscillators Selection Notes

Select this component when a precise 25.7815 MHz clock source is required for low-power applications. Consider the small 2.0x1.6 mm footprint for space-constrained designs. Verify compatibility with LVCMOS logic levels and ensure the system supports the standby power-down feature if energy efficiency is a priority.

Oscillators Part Context

This part belongs to the Mercury Electronics XO series, which provides standard frequency oscillators. The manufacturer has extensive experience in quartz crystal production. This specific model represents a surface-mount solution suitable for modern electronic assemblies requiring reliable timing signals.

Oscillators Replacement Considerations

Check for direct substitutes within the same Mercury Electronics family sharing identical frequency and voltage specifications. Verify pinout compatibility and package dimensions to ensure mechanical fit. Cross-reference electrical parameters such as load capacitance and drive level to maintain circuit performance.