18QHTF21-19.440-OE

Oscillators Overview

The 18QHTF21-19.440-OE is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 19.44 MHz and utilizes LVCMOS output logic levels. The device is designed for a supply voltage of 1.8V and features an enable/disable control function. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0x1.6 mm. This component is suitable for applications requiring precise timing signals in low-voltage digital systems.

Oscillators Feature Summary

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

Oscillators Applications

• Digital signal processing circuits
• Communication equipment clock sources
• Embedded system timing references

Oscillators Procurement Notes

Verify the specific suffix 'OE' against the manufacturer's current datasheet to confirm pinout and electrical characteristics match your design requirements. Ensure the 1.8V supply voltage aligns with your system power rails. Confirm RoHS compliance status if required by your manufacturing standards. Cross-reference the package dimensions with your PCB footprint library to ensure mechanical fit.

Oscillators Selection Notes

Select this component when a 19.44 MHz clock source is required with LVCMOS outputs. The 1.8V operating voltage makes it suitable for modern low-power digital designs. The small 2.0x1.6 mm package is ideal for space-constrained layouts. Consider the enable/disable feature if power management during idle states is necessary for the application.

Oscillators Part Context

Mercury Electronic Ind. Co., Ltd. has been a pioneer in the quartz crystal industry since 1973. The company specializes in frequency control products, including oscillators and resonators. The 18QHTF series represents their line of surface-mount crystal oscillators designed for various industrial and consumer electronics applications.

Oscillators Replacement Considerations

Direct substitutes include other 19.44 MHz LVCMOS oscillators in similar packages from manufacturers like Epson or SiTime. Verify voltage tolerance and load capacitance specifications before substitution. Check for equivalent enable/disable functionality if that feature is critical to the circuit design.