18QHTF21-26.690-PD

Oscillators Overview

The 18QHTF21-26.690-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 26.69 MHz and utilizes LVCMOS output logic. The device functions with a supply voltage of 1.8V and includes a standby (power down) feature for energy management. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.00mm x 1.60mm.

Oscillators Feature Summary

• Supports low-voltage operation at 1.8V
• Integrates standby mode for power reduction
• Provides LVCMOS signal output

Oscillators Applications

• Battery-powered electronic devices
• Portable consumer electronics
• General-purpose timing circuits

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 rail is stable within the operational specifications. Ensure the PCB footprint matches the 4-SMD, No Lead package dimensions to guarantee proper soldering and mechanical stability during assembly.

Oscillators Selection Notes

Select this component when a precise 26.69 MHz clock source is required for low-power applications. The choice is driven by the need for LVCMOS compatibility and the inclusion of a power-down function. Consider the small form factor suitable for space-constrained designs requiring reliable quartz-based timing.

Oscillators Part Context

This part belongs to the 18QHTF21 series from Mercury Electronics, which specializes in frequency control products including crystals and oscillators. The manufacturer has established expertise in Taiwan's quartz industry since 1973. This series typically offers standard performance levels suitable for general commercial and industrial timing needs.

Oscillators Replacement Considerations

Direct substitutes include other 26.69 MHz LVCMOS oscillators in 4-SMD packages with 1.8V operation. Verify pinout compatibility and electrical parameters such as phase noise and jitter if replacing with different manufacturers.