18QHTF21-26.995-PD

Oscillators Overview

The 18QHTF21-26.995-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 26.995 MHz with an LVCMOS output logic level. The device requires a supply voltage of 1.8V and features a power-down function for standby mode control. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0 x 1.6 mm.

Oscillators Feature Summary

• Supports low-voltage operation at 1.8V
• Includes power-down capability for energy management
• Provides standard LVCMOS signal output

Oscillators Applications

• Digital clock generation
• Data communication interfaces
• Embedded system timing references

Oscillators Procurement Notes

Verify the specific suffix 'PD' confirms the power-down functionality when sourcing this component. Ensure the operating temperature range meets your environmental requirements. Confirm the 1.8V supply voltage compatibility with your target circuit design before finalizing procurement decisions.

Oscillators Selection Notes

Select this model when a precise 26.995 MHz reference is required in space-constrained designs. The small 2.0x1.6mm footprint makes it suitable for high-density PCB layouts. Consider the 1.8V supply requirement to ensure proper voltage level matching within the system architecture.

Oscillators Part Context

This part belongs to the 18QHTF21 series from Mercury Electronics, which specializes in quartz crystal frequency control products. The manufacturer has decades of experience in Taiwan's crystal industry. This specific model represents a standard XO variant designed for general-purpose timing applications.

Oscillators Replacement Considerations

Direct substitutes include other 18QHTF21 variants with identical pinouts but different frequencies, such as 18QHTF21-51.200-PD or 18QHTF21-96.768-PD. Ensure the replacement maintains the same LVCMOS output type and 1.8V supply voltage specifications.