18QHTF21-13.400-OE

Overview

The 18QHTF21-13.400-OE is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 13.4 MHz and utilizes LVCMOS output logic levels. The device supports a supply voltage of 1.8V and includes an enable/disable control function for power management. It is housed in a compact 4-SMD, No Lead package suitable for surface mount applications.

Feature Summary

• LVCMOS output interface
• Enable/Disable control functionality
• Compact 4-SMD No Lead package

Applications

• General purpose timing circuits
• Embedded systems clock sources
• Consumer electronics timing references

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your circuit design before procurement. Ensure the 1.8V supply voltage aligns with your system's power rails. Confirm that the Enable/Disable pin configuration matches your control logic to ensure proper operation during standby modes.

Selection Notes

Select this component when a low-voltage 1.8V operation is required alongside precise 13.4 MHz timing. The LVCMOS output ensures compatibility with standard digital logic families. Consider the small form factor if board space is limited. Verify thermal performance needs as the no-lead package may have different dissipation characteristics compared to leaded alternatives.

Part Context

This part belongs to the 18QHTF21 series from Mercury Electronics, which specializes in quartz-based frequency control products. The manufacturer has been producing such components since 1973, focusing on crystals, oscillators, and filters. This series represents their standard XO offerings designed for modern electronic applications requiring reliable timing signals.

Replacement Considerations

Direct substitutes include other 13.4 MHz LVCMOS oscillators in 4-SMD packages from Mercury or compatible vendors. Ensure replacement parts match the 1.8V supply requirement and pinout configuration. Cross-reference datasheets for equivalent frequency stability and phase noise specifications to maintain system performance integrity.