18QHTF21-13.518-PD

Overview

The 18QHTF21-13.518-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 13.518 MHz and utilizes LVCMOS output logic levels. 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 suitable for surface-mount assembly.

Feature Summary

• LVCMOS output interface
• Standby (Power Down) capability
• Standard XO type

Applications

• General purpose clock generation
• Digital signal processing systems
• Embedded controller timing

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against the system design specifications before procurement. Confirm that the 1.8V supply voltage aligns with the target circuit's power rails. Ensure the 4-SMD No Lead package dimensions are compatible with the PCB footprint to avoid assembly issues during manufacturing.

Selection Notes

Select this component when a precise 13.518 MHz clock source is required with low-power standby functionality. The LVCMOS output is suitable for direct interfacing with standard digital logic families operating at 1.8V. Consider the 4-SMD form factor for space-constrained designs requiring surface-mount integration.

Part Context

This part belongs to the Mercury Electronics SMD Oscillator series, specifically designed for applications requiring stable frequency control. The manufacturer specializes in quartz crystals and oscillators, offering a range of frequency control products including TCXO and VCXO variants for various industrial and consumer electronics applications.

Replacement Considerations

Direct substitutes must match the 13.518 MHz frequency, LVCMOS output, 1.8V supply, and 4-SMD No Lead package. Verify pin compatibility and electrical characteristics with alternative manufacturers' offerings to ensure seamless integration without circuit redesign.