18QHTF21-20.155-PD

Oscillators Overview

The 18QHTF21-20.155-PD is a standard crystal oscillator manufactured by Mercury Electronic Ind. Co., Ltd. It operates at a frequency of 20.155 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 suitable for surface-mount applications.

Oscillators Feature Summary

• LVCMOS output interface
• Standby power-down capability
• Surface-mount SMD package

Oscillators Applications

• General electronic timing circuits
• Digital signal processing systems
• Communication equipment clock sources

Oscillators Procurement Notes

Verify the specific datasheet for the 18QHTF21-20.155-PD to confirm electrical parameters such as load capacitance, stability, and phase noise. Ensure compatibility with the target system's voltage requirements and physical footprint constraints before finalizing procurement decisions.

Oscillators Selection Notes

Select this component when a precise 20.155 MHz reference is required with low-power standby functionality. Consider the 1.8V operating voltage and LVCMOS compatibility with downstream digital logic. Evaluate the 4-SMD package size against available PCB real estate.

Oscillators Part Context

This part belongs to the 18QHTF21 series of oscillators from Mercury Electronics. The manufacturer specializes in quartz crystals and frequency control products, leveraging decades of experience in Taiwan's crystal industry to produce reliable timing components.

Oscillators Replacement Considerations

Direct substitutes must match the 20.155 MHz frequency, 1.8V LVCMOS output, and 4-SMD package. Verify pinout compatibility and electrical specifications with alternative manufacturers offering similar surface-mount oscillators.