18QHTF21-11.3541-OE

Overview

The 18QHTF21-11.3541-OE is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a nominal frequency of 11.3541 MHz with a frequency stability of ±50ppm. The device utilizes LVCMOS output logic and functions on a 1.8V supply voltage. It features an enable/disable control pin for power management. The component is housed in a compact 4-SMD, No Lead package suitable for surface mount applications. The operating temperature range extends from -40°C to 85°C, ensuring reliability in various environmental conditions.

Feature Summary

• Standard XO configuration with LVCMOS output logic
• Integrated enable/disable functionality for power control
• Compact 4-SMD no-lead surface mount package design

Applications

• Embedded systems requiring precise timing signals
• Consumer electronics utilizing low-voltage logic interfaces
• Industrial control modules operating within extended temperature ranges

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your circuit design before procurement. Ensure that the 1.8V supply voltage aligns with your system's power rails. Confirm the enable/disable pin logic levels match your microcontroller or driver outputs. Check the physical footprint compatibility with your PCB layout constraints. Review the datasheet for any specific handling precautions related to the no-lead package type.

Selection Notes

Select this component when a stable 11.3541 MHz clock source is required for digital circuits. Consider the ±50ppm stability specification for applications sensitive to timing drift. The LVCMOS output ensures compatibility with standard CMOS logic families. Evaluate the thermal performance within the -40°C to 85°C range for your specific environment. The small form factor makes it suitable for space-constrained designs.

Part Context

This part belongs to the 18QHTF21 series of standard crystal oscillators from Mercury Electronics. The series offers various frequencies while maintaining consistent electrical characteristics and package dimensions. Mercury Electronics specializes in frequency control products, including quartz crystals and oscillators. This series is designed for general-purpose timing applications in modern electronic devices.

Replacement Considerations

Direct replacements must match the 11.3541 MHz frequency, LVCMOS output, and 1.8V supply voltage. Verify that alternative components offer comparable ±50ppm stability and similar package dimensions. Ensure the substitute part supports the same enable/disable functionality if required by the design.