18QHTF21-19.660-OE

Oscillators Overview

The 18QHTF21-19.660-OE is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a nominal frequency of 19.66 MHz with a stability of 50 ppm. The device utilizes an LVCMOS output interface 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, suitable for surface mount applications.

Oscillators Feature Summary

• LVCMOS output interface for digital logic compatibility
• Integrated enable/disable control functionality
• Compact 4-SMD no lead surface mount package

Oscillators Applications

• Timing and clock signal generation in electronic devices
• Digital circuit synchronization
• Embedded system clock sources

Oscillators Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against the target circuit design before procurement. Confirm that the 1.8V supply voltage aligns with the system power rails. Ensure the 4-SMD package footprint matches the PCB layout specifications to guarantee proper soldering and mechanical stability during assembly.

Oscillators Selection Notes

Select this component when a precise 19.66 MHz clock source is required with low power consumption capabilities. The LVCMOS output is suitable for direct interfacing with standard digital logic families. Consider the 50 ppm stability for applications requiring moderate frequency accuracy without the need for higher-grade temperature compensation.

Oscillators Part Context

This part belongs to the 18QHTF21 series of standard crystal oscillators from Mercury Electronics. The series offers various frequency options within a small form factor. These oscillators are designed for general-purpose timing applications where size constraints and power efficiency are primary considerations for embedded electronics.

Oscillators Replacement Considerations

Direct substitutes include other 19.66 MHz LVCMOS oscillators in 4-SMD packages with compatible 1.8V supply voltages. Verify pinout compatibility and electrical parameters such as current consumption and output swing levels before substitution.