18QHTF21-18.9568-PD

Oscillators Overview

The Mercury Electronics Ind. Co. Ltd 18QHTF21-18.9568-PD is a standard crystal oscillator (XO) designed for low-power applications. It operates at a frequency of 18.9568 MHz with an LVCMOS output signal type. The device requires a supply voltage of 1.8V and includes a standby or power-down function to minimize energy consumption during inactive periods. It is housed in a compact 4-SMD, no-lead package measuring 2.0x1.6mm, suitable for space-constrained surface-mount designs.

Oscillators Feature Summary

• Supports standby mode for power reduction
• LVCMOS output interface compatibility
• Compact 4-SMD no-lead footprint

Oscillators Applications

• Portable electronic devices requiring low power consumption
• Communication equipment utilizing standard clock signals
• Embedded systems with limited board space

Oscillators Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your circuit design before ordering. 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 layout constraints. Cross-reference the manufacturer datasheet for detailed electrical characteristics and reliability standards to ensure component suitability for your specific application environment.

Oscillators Selection Notes

Select this model when a precise 18.9568 MHz clock source is required with minimal power usage. The LVCMOS output ensures compatibility with standard digital logic families. Consider the small form factor for dense PCB layouts. Evaluate the need for power-down functionality if the system enters sleep modes frequently. Compare against other frequencies in the series if different timing specifications are needed.

Oscillators Part Context

This component belongs to the 18QHTF21 series from Mercury Electronics, which offers various standard oscillators with similar packaging but different frequencies. The series is known for providing reliable quartz-based timing solutions. Other models in this line include variants like 18QHTF21-96.768-PD and 18QHTF21-8.000-PD, sharing the same physical footprint and operational voltage but differing in output frequency.

Oscillators Replacement Considerations

Direct substitutes must match the 18.9568 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD no-lead package. Verify pinout compatibility and thermal characteristics. No alternative part numbers are explicitly confirmed in public documentation as direct replacements.