18QHTF21-19.6608-PD

Oscillators Overview

The 18QHTF21-19.6608-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 19.6608 MHz and utilizes LVCMOS output logic levels. The device is designed for a supply voltage of 1.8V and features a standby or power-down function to manage energy consumption during inactive periods. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0x1.6 mm, suitable for surface-mount applications requiring precise timing signals.

Oscillators Feature Summary

• Supports low-voltage operation at 1.8V with LVCMOS interface compatibility
• Includes standby mode capability for power management
• Utilizes a small form-factor SMD package for space-constrained designs

Oscillators Applications

• Digital signal processing circuits requiring stable clock sources
• Communication equipment utilizing 19.6608 MHz base frequencies
• Consumer electronics with limited power budgets

Oscillators Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your system design before procurement. Confirm that the 1.8V supply rail is stable and within the operational limits specified in the official datasheet. Ensure the PCB footprint matches the 4-SMD No Lead package dimensions to prevent assembly issues. Check for RoHS compliance status if required by your manufacturing standards.

Oscillators Selection Notes

Select this component when a precise 19.6608 MHz reference is needed with minimal power consumption. The LVCMOS output ensures direct interfacing with standard digital logic without additional level shifting. Consider the thermal characteristics of the 1.8V operation in high-density layouts. Evaluate the need for the power-down feature if the application allows for periodic sleep states to extend battery life.

Oscillators Part Context

This part belongs to the 18QHTF21 series from Mercury Electronics, which focuses on low-power, small-footprint oscillators. The manufacturer specializes in quartz crystal products with decades of industry experience. This series is designed to meet the demands of modern portable and industrial electronics requiring reliable timing solutions in compact packages.

Oscillators Replacement Considerations

Direct substitutes must match the 19.6608 MHz frequency, 1.8V voltage, LVCMOS output, and 4-SMD package. Verify pinout compatibility and electrical specifications before swapping. Generic replacements may differ in phase noise or startup time.