18QHTF21-19.707894-PD

Oscillators Overview

The 18QHTF21-19.707894-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 19.707894 MHz with an LVCMOS output signal type. The device functions on a 1.8V supply voltage and includes a standby (power down) feature for energy management. It is housed in a compact 4-SMD, No Lead package suitable for surface mount applications.

Oscillators Feature Summary

• Supports LVCMOS output interface
• Includes standby power down capability
• Operates at 1.8V supply voltage

Oscillators Applications

• General purpose clock generation
• Embedded system timing
• Consumer electronics

Oscillators Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your circuit design before procurement. Confirm that the 1.8V operating voltage aligns with your system's power rails. Ensure the 4-SMD no-lead package dimensions fit within your PCB footprint constraints. Cross-reference the manufacturer datasheet for precise electrical characteristics to guarantee compatibility.

Oscillators Selection Notes

Select this component when a low-voltage 1.8V operation is required alongside a standard LVCMOS interface. The integrated standby function makes it suitable for battery-powered or power-sensitive designs. Consider the 4-SMD package size for space-constrained layouts. Verify that the 19.707894 MHz frequency meets the specific timing needs of the target application without requiring external dividers.

Oscillators Part Context

This part belongs to the 18QHTF21 series from Mercury Electronics, which specializes in quartz crystal products. The series typically offers various frequencies with consistent 1.8V LVCMOS specifications. Mercury has a long history in Taiwan manufacturing frequency control components, providing standardized oscillator solutions for industrial and consumer markets.

Oscillators Replacement Considerations

Direct substitutes must match the 19.707894 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD package. Check equivalent models from other manufacturers offering identical pinout and electrical parameters. Ensure thermal and mechanical specifications are compatible for direct replacement.