18QHTF21-41.400-PD

Oscillators Overview

The 18QHTF21-41.400-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 41.4 MHz and utilizes LVCMOS output logic levels. The device is designed for a supply voltage of 1.8V and includes a standby or power-down function to reduce consumption when inactive. It is housed in a compact 4-SMD, No Lead package, suitable for surface-mount applications requiring precise timing signals.

Oscillators Feature Summary

• Supports LVCMOS output interface for digital logic compatibility
• Integrates standby mode for power management efficiency
• Utilizes a leadless SMD package for automated assembly

Oscillators Applications

• Digital signal processing circuits
• Communication equipment clock sources
• Embedded system timing references

Oscillators Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against the target circuit design before procurement. Confirm that the 1.8V supply voltage aligns with the system power rails. Ensure the PCB footprint matches the 4-SMD no-lead package dimensions provided in the official datasheet to prevent soldering defects during assembly.

Oscillators Selection Notes

Select this component when a low-voltage 1.8V operation is required alongside a standard LVCMOS interface. The inclusion of a power-down feature makes it suitable for battery-operated devices where standby current reduction is critical. Ensure the application does not require differential outputs, as this model provides single-ended LVCMOS signals.

Oscillators Part Context

This part belongs to the 18QHTF21 series from Mercury Electronic Ind. Co., Ltd, a manufacturer established in Taiwan specializing in quartz crystals and oscillators since 1973. The series typically offers various frequencies within a small form factor, catering to consumer electronics and industrial timing applications requiring reliable frequency control.

Oscillators Replacement Considerations

Direct substitutes include other 18QHTF21 variants with different frequencies such as 18QHTF21-51.200-PD or 18QHTF21-68.665-PD if frequency adjustment is permissible. Cross-brand replacements must match the 1.8V supply, LVCMOS output, and 4-SMD no-lead package constraints.