18QHTF21-25.3125-PD

Oscillators Overview

The 18QHTF21-25.3125-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 25.3125 MHz and utilizes LVCMOS output logic levels. The device requires a supply voltage of 1.8V and features a standby or power-down function for energy management. It is housed in a compact 4-SMD, No Lead package, designed for surface-mount applications. This component serves as a precise clock source for digital circuits requiring stable timing signals.

Oscillators Feature Summary

• Supports LVCMOS output logic for direct interface with digital components
• Includes standby mode capability to reduce power consumption during idle periods
• Utilizes a leadless SMD package for automated surface-mount assembly

Oscillators Applications

• Digital signal processing systems requiring precise clock synchronization
• Communication equipment utilizing standard data transmission rates
• Embedded control units needing low-power clock sources

Oscillators Procurement Notes

Verify the specific ordering suffix and package variant against the manufacturer's current datasheet before procurement. Ensure compatibility with the target system's voltage requirements and thermal specifications. Confirm that the leadless package type aligns with the printed circuit board footprint design to prevent assembly errors.

Oscillators Selection Notes

Select this model when a 25.3125 MHz frequency is strictly required for system timing. Consider the 1.8V supply constraint and LVCMOS compatibility with downstream logic families. Evaluate the need for power-down functionality if energy efficiency is a critical design parameter for the application environment.

Oscillators Part Context

This part belongs to the Mercury Electronics XO series, which provides standard frequency generation solutions. The series typically includes various frequencies and voltage options within similar form factors. Mercury Electronics has extensive experience in quartz crystal manufacturing, offering reliable frequency control products for industrial and commercial electronics.

Oscillators Replacement Considerations

Direct substitutes may include other 25.3125 MHz LVCMOS oscillators in 4-SMD packages from different manufacturers. Verify pinout compatibility and electrical characteristics such as jitter and phase noise before substitution. Alternative parts must support the same 1.8V supply and standby functionality.