18QHTF21-85.909089-OE

Overview

The 18QHTF21-85.909089-OE is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 85.909089 MHz and utilizes LVCMOS output logic. The device functions with a supply voltage of 1.8V and includes enable/disable control capabilities. It is housed in a compact 4-SMD, No Lead package designed for surface mount applications.

Feature Summary

• Supports LVCMOS output logic for digital interface compatibility
• Includes enable and disable functionality for power management
• Utilizes a 4-SMD no lead package for surface mount integration

Applications

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

Procurement Notes

Verify the specific frequency tolerance and operating temperature range against the official datasheet before procurement. Confirm that the 1.8V supply voltage aligns with the target system design requirements. Ensure the 4-SMD no lead package footprint matches the PCB layout specifications to guarantee proper assembly and electrical connectivity.

Selection Notes

Select this component when a precise 85.909089 MHz clock source is required for LVCMOS compatible circuits. Consider the 1.8V operating voltage and the need for enable/disable control features. Evaluate the physical constraints of the 4-SMD no lead package to ensure it fits within the designated area on the printed circuit board during the design phase.

Part Context

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

Replacement Considerations

Consult official substitution lists for equivalent frequency and package variants. Verify compatibility of supply voltage and output logic levels before replacing.