18QHTF21-19.6606-PD

Oscillators Overview

The 18QHTF21-19.6606-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 19.6606 MHz and utilizes LVCMOS output logic levels. The device supports a supply voltage of 1.8V and includes a standby or power-down function for energy management. It is housed in a compact 4-SMD, No Lead package, designed for surface-mount applications requiring precise timing signals.

Oscillators Feature Summary

• LVCMOS output interface
• Standby mode support
• Surface-mount package

Oscillators Applications

• Digital signal processing systems
• Communication equipment timing
• Embedded control circuits

Oscillators Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your circuit design before ordering. Confirm that the 1.8V supply voltage aligns with your system's power rails. Ensure the 4-SMD footprint matches your PCB layout constraints. Cross-reference the manufacturer datasheet for absolute maximum ratings to prevent operational damage.

Oscillators Selection Notes

Select this component when a stable 19.6606 MHz reference is required in low-voltage environments. The LVCMOS output ensures compatibility with standard digital logic families. Consider the standby feature if power efficiency during idle periods is a critical design parameter. Validate the operating temperature range against your application's environmental conditions.

Oscillators Part Context

This oscillator belongs to the 18QHTF21 series from Mercury Electronics, which specializes in quartz-based frequency control products. The series offers various frequencies within a standardized 4-pin SMD form factor. Mercury Electronics has established itself as a pioneer in Taiwan's quartz crystal manufacturing industry, providing reliable timing solutions for electronic components.

Oscillators Replacement Considerations

Direct substitutes must match the 19.6606 MHz frequency, LVCMOS output type, 1.8V supply, and 4-SMD package. Verify pinout compatibility and electrical characteristics before swapping. Generic oscillators may not replicate the exact performance without detailed datasheet comparison.