18QHTF21-10.041-OE

Overview

The 18QHTF21-10.041-OE is a surface-mount crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a nominal frequency of 10.041 MHz with a supply voltage of 1.8V. The device features LVCMOS output logic and an enable/disable control function. Key electrical parameters include a frequency stability of ±50ppm and a maximum supply current of 22mA. The operating temperature range extends from -40°C to +85°C. The component utilizes a compact 7.0mm x 5.0mm package, designed for space-constrained electronic applications requiring precise timing signals.

Feature Summary

• LVCMOS output logic for standard digital interface compatibility
• Integrated enable and disable functionality for power management
• Wide industrial operating temperature range for environmental resilience

Applications

• General-purpose clock generation in embedded systems
• Timing reference for microcontrollers and processors
• Communication equipment requiring stable frequency sources

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your circuit design before procurement. Confirm that the 1.8V supply voltage aligns with your system's power rails. Ensure the surface-mount footprint matches your PCB layout guidelines. Check for any specific handling or storage conditions recommended by the manufacturer to maintain component integrity during assembly.

Selection Notes

Select this component when a 10.041 MHz clock signal is required with low power consumption and industrial temperature capability. The LVCMOS output is suitable for direct interfacing with standard logic families. Consider the ±50ppm stability if tight frequency accuracy is critical for your application's synchronization needs. Evaluate the 22mA current draw against your system's power budget constraints.

Part Context

This part belongs to the 18QHTF series of crystal oscillators from Mercury Electronics. The series offers various frequencies and package sizes. The 18QHTF21 variant specifically denotes the 7.0x5.0mm form factor. This model is distinct from other series like the 18QHTF57 which may have different dimensions or performance characteristics. It represents a standard XO solution for general timing applications.

Replacement Considerations

Direct substitutes must match the 10.041 MHz frequency, 1.8V supply, LVCMOS output, and 7.0x5.0mm package. Verify equivalent frequency stability and operating temperature ranges. Cross-reference pinouts and enable logic polarity with potential alternative manufacturers to ensure functional compatibility without redesigning the host circuit.