18QHTF21-19.662-OE

Oscillators Overview

The 18QHTF21-19.662-OE is a crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 19.662 MHz with an LVCMOS output signal format. The device supports a supply voltage of 1.8V and includes Enable/Disable functionality for power management. It is housed in a compact 4-SMD, No Lead package, suitable for surface-mount applications requiring precise timing signals.

Oscillators Feature Summary

• LVCMOS output interface for standard logic compatibility
• Integrated enable/disable control for power optimization
• Compact 4-SMD no-lead surface mount package design

Oscillators Applications

• General purpose digital circuit timing
• Embedded systems clock generation
• Consumer electronics timing references

Oscillators Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against the target application's datasheet specifications. Confirm that the 1.8V supply voltage aligns with the system power rails. Ensure the 4-SMD package footprint matches the PCB layout constraints. Cross-reference the part number suffix to confirm the exact variant details before finalizing procurement orders.

Oscillators Selection Notes

Select this component when a low-voltage 1.8V operation is required alongside standard LVCMOS signaling levels. The enable/disable feature makes it suitable for battery-powered or power-sensitive designs. Consider the small form factor of the 4-SMD package for space-constrained layouts. Validate that the 19.662 MHz frequency meets the system's clocking needs without additional dividers.

Oscillators Part Context

This oscillator belongs to the 18QHTF21 series from Mercury Electronics, which focuses on low-voltage crystal oscillators. The series typically offers various frequencies and packaging options. Mercury Electronics is a established manufacturer of frequency control products, providing reliable timing solutions for electronic circuits.

Oscillators Replacement Considerations

Direct substitutes may include other 1.8V LVCMOS oscillators in 4-SMD packages from manufacturers like Epson, NDK, or SiTime, provided they match the 19.662 MHz frequency and pinout configuration. Verify electrical parameters such as jitter and phase noise if critical for the application.