18QHTF21-13.244531-PD

Overview

The 18QHTF21-13.244531-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a nominal frequency of 13.244531 MHz and utilizes LVCMOS output logic. 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, designed for surface-mount applications requiring precise timing signals.

Feature Summary

• LVCMOS output logic interface
• Integrated standby and power-down functionality
• Surface-mount 4-SMD no lead package

Applications

• Digital signal processing circuits
• Communication equipment clocking
• Microcontroller system timing

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against the official datasheet before procurement. Confirm that the 1.8V supply voltage aligns with the target circuit design. Ensure the 4-SMD no lead package dimensions fit the PCB footprint constraints. Check for any specific ordering suffixes that may affect performance characteristics.

Selection Notes

Select this component when a low-voltage 1.8V operation is required alongside LVCMOS compatibility. The integrated power-down feature makes it suitable for battery-powered or energy-efficient designs. Consider the small form factor of the 4-SMD package for space-constrained layouts. Validate that the 13.244531 MHz frequency meets the system's timing specifications.

Part Context

This part belongs to the 18QHTF21 series from Mercury Electronics, which specializes in quartz crystal products. The manufacturer has decades of experience in frequency control solutions. This specific model represents a standard XO variant within their portfolio, offering reliable timing for various electronic applications.

Replacement Considerations

Direct substitutes include other 18QHTF21 series variants with different frequencies, such as 18QHTF21-44.530-PD or 18QHTF21-51.200-PD, provided the frequency difference is acceptable. Cross-brand replacements must match the 1.8V supply, LVCMOS output, and 4-SMD package type.