18QHTF21-7.37281-PD

Overview

The Mercury Electronics 18QHTF21-7.37281-PD is a quartz crystal unit designed for precision timing applications. It operates at a fundamental frequency of 7.37281 MHz, providing stable oscillation for digital circuits. The component utilizes a specific cut type to ensure thermal stability across operating ranges. This model is engineered for reliable performance in embedded systems requiring accurate clock signals.

Feature Summary

• Provides precise fundamental frequency operation
• Engineered for thermal stability
• Designed for reliable digital circuit timing

Applications

• Embedded system clock generation
• Digital signal processing timing references
• Microcontroller oscillator circuits

Procurement Notes

Verify the exact package dimensions and mounting requirements against the mechanical drawing before procurement. Ensure the load capacitance specifications match the target oscillator circuit design. Confirm that the operating temperature range aligns with the environmental conditions of the final application. Check for any specific handling instructions regarding electrostatic discharge sensitivity during assembly.

Selection Notes

Select this component when a fundamental mode crystal is required for the 7.37281 MHz frequency point. Consider the package size constraints and available board space for the specific form factor. Evaluate the drive level limitations to prevent overdriving the crystal element. Compare equivalent series resistance values if low power consumption is a critical design parameter.

Part Context

This part belongs to the Mercury Electronics quartz crystal lineup, focusing on standard frequency points used in telecommunications and computing. The 18QHTF21 series typically offers various package options to suit different manufacturing processes. The suffix indicates specific packaging or trimming variations within the product family.

Replacement Considerations

Direct replacements must match the 7.37281 MHz fundamental frequency and compatible package outline. Verify that substitute components meet the same electrical parameters including frequency tolerance and stability. Ensure the replacement part supports the required load capacitance for the host circuit.