18QHTF21-13.56874-OE

Overview

The 18QHTF21-13.56874-OE is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 13.56874 MHz and utilizes LVCMOS output logic. The device is designed for low-voltage applications with a supply voltage of 1.8V. It features an enable/disable control function to manage power consumption. The component is housed in a compact 4-SMD, No Lead package, suitable for surface-mount assembly on printed circuit boards.

Feature Summary

• LVCMOS output logic for digital interface compatibility
• Integrated enable/disable control functionality
• Compact 4-SMD no-lead surface mount package

Applications

• Timing and clock signal generation in electronic devices
• Low-voltage digital system synchronization
• Consumer electronics requiring precise frequency references

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's power rails. Ensure the 4-SMD package footprint matches the PCB layout silkscreen and copper pad dimensions to guarantee proper soldering and mechanical stability during assembly.

Selection Notes

Select this component when a 13.56874 MHz reference is required for LVCMOS-compatible circuits. Consider the 1.8V operating voltage constraint relative to other available supply options. Evaluate the enable/disable feature necessity for power management strategies. Compare the physical dimensions of the 4-SMD package against available board space constraints to ensure fitment within the designated area.

Part Context

This part belongs to the 18QHTF21 series from Mercury Electronics, which specializes in quartz crystals and oscillators. The series typically offers various frequencies and voltage levels. The 'OE' suffix likely denotes a specific ordering or packaging variant defined by the manufacturer. Mercury Electronics has been a pioneer in the Taiwan crystal industry since 1973, providing frequency control products including TCXOs and VCXOs.

Replacement Considerations

Direct substitutes must match the 13.56874 MHz frequency, LVCMOS output, 1.8V supply, and 4-SMD package. Verify pinout compatibility if replacing with different manufacturers. Check datasheets for equivalent electrical characteristics such as phase noise and jitter specifications to ensure performance parity in timing-sensitive applications.