18QHTF21-75.285-OE

Overview

The 18QHTF21-75.285-OE is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 75.285 MHz and utilizes LVCMOS output logic. The device supports a supply voltage of 1.8V and features an enable/disable control function for power management. It is housed in a compact 4-SMD, No Lead package suitable for surface mount applications.

Feature Summary

• LVCMOS output logic for digital interface compatibility
• Integrated enable and disable control functionality
• Compact 4-SMD no lead surface mount package design

Applications

• General purpose clock signal generation
• Digital system timing reference
• Embedded electronics timing circuits

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against the target circuit design before procurement. Confirm that the 1.8V supply voltage aligns with the system power rails. Ensure the 4-SMD footprint matches the PCB layout specifications to guarantee proper mechanical and electrical connection during assembly.

Selection Notes

Select this component when a precise 75.285 MHz clock source is required with low voltage operation. The LVCMOS output is suitable for direct interfacing with standard digital logic families. Consider the enable pin utility for power saving strategies in battery-operated or standby-sensitive designs requiring active clock control.

Part Context

This part belongs to the 18QHTF21 series of standard XO oscillators from Mercury Electronics. The series offers various frequency options within a small form factor. The manufacturer specializes in quartz crystals and frequency control products, providing reliable timing solutions for electronic systems requiring stable clock signals.

Replacement Considerations

Direct substitutes include other 75.285 MHz LVCMOS oscillators in 4-SMD packages from compatible manufacturers. Verify pinout compatibility and voltage levels when cross-referencing. Alternative frequencies in the same package may require firmware adjustments if the system allows flexible clock inputs.