18QHTF21-41.6666-OE

Oscillators Overview

The 18QHTF21-41.6666-OE is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a nominal frequency of 41.6666 MHz with a frequency stability of ±50ppm. The device utilizes LVCMOS output logic and requires a 1.8V supply voltage. It features an enable/disable control function and is housed in a compact 4-SMD, No Lead package with dimensions of 2.0mm x 1.6mm.

Oscillators Feature Summary

• LVCMOS output logic for digital interface compatibility
• Integrated enable and disable control functionality
• Compact surface-mount package design

Oscillators Applications

• General clock signal generation
• Digital system timing references
• Embedded controller clock sources

Oscillators 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 no-lead package footprint matches the PCB layout specifications to guarantee proper soldering and mechanical stability during assembly processes.

Oscillators Selection Notes

Select this component when a precise 41.6666 MHz clock source is required with low voltage operation. Consider the ±50ppm stability specification for applications sensitive to timing drift. Evaluate the LVCMOS output level against the input thresholds of downstream logic devices to ensure signal integrity without additional buffering or level shifting requirements.

Oscillators Part Context

This part belongs to the 18QHTF21 series of surface-mount oscillators from Mercury Electronics. The series offers various frequency options within a standardized 2.0x1.6mm footprint. These components are designed for portable electronics and compact digital systems where space constraints and low power consumption are critical design factors.

Oscillators Replacement Considerations

Direct substitutes include other 41.6666 MHz XO models with identical 1.8V LVCMOS outputs and 4-SMD packages. Verify pinout compatibility and thermal characteristics when considering alternative manufacturers. Cross-reference frequency stability limits to ensure equivalent performance in the final application environment.