18QHTF21-6.16791-OE

Overview

The 18QHTF21-6.16791-OE is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a nominal frequency of 6.16791 MHz with a stability of ±50 ppm. The device utilizes an LVCMOS output signal and requires a supply voltage of 1.8V. It features an Enable/Disable control function for power management. The component is housed in a compact 4-SMD, No Lead package with dimensions of 2.0x1.6mm. It supports an operating temperature range from -40°C to 85°C and has a maximum supply current of 21 mA.

Feature Summary

• Provides stable timing signals via LVCMOS output interface
• Includes hardware enable/disable control for power optimization
• Designed for low-voltage operation at 1.8V
• Utilizes a compact surface-mount package for space-constrained designs

Applications

• Embedded systems requiring precise clock synchronization
• Consumer electronics with limited power budgets
• Industrial control modules operating in variable temperatures
• Communication devices needing standard frequency references

Procurement Notes

Verify the specific ordering suffix matches the required enable/disable functionality versus standby modes. Confirm the package dimensions align with PCB footprint requirements. Ensure the supply voltage rating corresponds to the target system's rail. Check temperature range specifications against environmental conditions. Validate authenticity through authorized distribution channels to avoid counterfeit components.

Selection Notes

Choose this oscillator when a 6.16791 MHz reference is necessary for digital logic interfaces. Consider the 1.8V supply requirement for compatibility with modern low-power microcontrollers. Evaluate the ±50 ppm stability against system jitter tolerance. Assess the small form factor benefits for high-density board layouts. Compare alternative frequencies if the exact value is not critical for the application.

Part Context

This component belongs to the QHT series of quartz crystal oscillators from Mercury Electronic Ind. Co., Ltd. The series focuses on providing reliable timing solutions for various electronic applications. Mercury Electronics specializes in frequency control products, including crystals and oscillators, serving industries that require precise timekeeping. The company has a long history in manufacturing quartz-based components.

Replacement Considerations

Direct substitutes include other 6.16791 MHz LVCMOS oscillators with similar voltage and package constraints. Verify pinout compatibility before swapping. Ensure equivalent stability and temperature ranges are maintained. Check for identical enable/disable logic levels. Consult manufacturer cross-reference lists for verified alternatives.