18QHTF21-18.660-PD

Oscillators Overview

The 18QHTF21-18.660-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 18.66 MHz and utilizes LVCMOS output logic levels. The device is designed for low-power applications, requiring a supply voltage of 1.8V. A key functional characteristic is the inclusion of a standby or power-down mode to further reduce energy consumption during inactive periods. The component is housed in a compact 4-SMD, no lead package, suitable for surface-mount assembly processes.

Oscillators Feature Summary

• LVCMOS output interface
• 1.8V supply voltage operation
• Standby (Power Down) capability

Oscillators Applications

• Low-power electronic systems
• Clock signal generation
• Digital circuit timing

Oscillators Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against the official datasheet before procurement. Confirm that the 1.8V operating voltage aligns with the target system's power rails. Ensure the 4-SMD no-lead package dimensions are compatible with the PCB footprint design. Cross-reference the manufacturer part number to avoid confusion with similar series variants.

Oscillators Selection Notes

Select this component when a precise 18.66 MHz clock source is required with minimal power consumption. The LVCMOS output ensures compatibility with standard digital logic families. The integrated power-down feature makes it suitable for battery-operated devices or systems requiring active/idle state management. Verify thermal and environmental specifications if operating outside standard conditions.

Oscillators Part Context

This oscillator belongs to the 18QHTF21 series from Mercury Electronics, which specializes in frequency control products. The series typically offers various frequencies within a standardized small outline package. Mercury Electronics has a long history in quartz crystal manufacturing, providing reliable components for industrial and commercial applications.

Oscillators Replacement Considerations

Direct substitutes must match the 18.66 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD package. Check pinout compatibility and electrical characteristics such as phase noise and jitter. Consult the manufacturer for approved cross-reference parts.