18QHTF21-111.26374-OE

Overview

The 18QHTF21-111.26374-OE is a standard crystal oscillator (XO) manufactured by Mercury Electronic Ind. Co., Ltd. It operates at a nominal frequency of 111.26374 MHz and utilizes LVCMOS output logic levels. The device is powered by a 1.8V supply voltage and includes an enable/disable control function for power management. It is housed in a compact 4-SMD, No Lead package designed for surface mount technology. The component supports an operating temperature range of -40°C to 85°C with a frequency stability of ±50ppm and a maximum supply current of 22mA.

Feature Summary

• Supports LVCMOS output logic levels for digital interface compatibility
• Includes enable/disable pin functionality for active power management
• Designed for surface mount assembly using a leadless SMD package

Applications

• Digital signal processing systems requiring precise clock timing
• Communication equipment utilizing high-frequency data transmission
• Embedded systems operating within industrial temperature ranges

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your circuit design before ordering. Confirm that the 1.8V supply voltage aligns with your system's power rails. Ensure the PCB footprint matches the 4-SMD no-lead package dimensions provided in the official datasheet to prevent mounting issues during assembly.

Selection Notes

Select this model when a fixed frequency of 111.26374 MHz is required with LVCMOS outputs. Consider the ±50ppm stability specification for applications sensitive to clock drift over temperature variations. The enable/disable feature makes it suitable for battery-powered devices where power conservation is critical compared to continuously running oscillators.

Part Context

This component belongs to the 18QHTF21 series of standard crystal oscillators from Mercury Electronic. The series offers various frequency options within a small form factor. Mercury Electronic is a specialized manufacturer of frequency control products, including quartz crystals and oscillators, with a focus on providing reliable timing solutions for electronic circuits.

Replacement Considerations

Direct substitutes must match the 111.26374 MHz frequency, LVCMOS output type, 1.8V supply, and 4-SMD package. Verify equivalent stability and temperature range specifications. Cross-reference part numbers from other manufacturers offering identical electrical parameters and mechanical dimensions to ensure functional interchangeability.