18QHTF21-10.400-PD

Overview

The 18QHTF21-10.400-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 10.4 MHz and utilizes LVCMOS output logic. The device supports a supply voltage of 1.8V and includes a standby function for power down capabilities. It is housed in a compact 4-SMD, No Lead package, designed for surface-mount applications requiring precise timing signals.

Feature Summary

• Supports LVCMOS output logic for digital interface compatibility
• Includes standby mode for power management efficiency
• Utilizes surface-mount packaging for automated assembly

Applications

• General purpose clock generation in electronic circuits
• Timing reference for microprocessors and controllers
• Data communication interfaces requiring stable frequency sources

Procurement Notes

Verify the specific ordering suffix to ensure correct voltage and output type. Confirm package dimensions against board layout requirements. Check manufacturer datasheets for electrical characteristics and operating temperature ranges before integration. Ensure supply chain authenticity through authorized channels.

Selection Notes

Select this component when a 10.4 MHz frequency is required with low voltage operation. Consider the 1.8V supply constraint and LVCMOS interface compatibility. Evaluate space constraints due to the small SMD footprint. Assess power consumption needs given the standby feature availability.

Part Context

This part belongs to the 18QHTF21 series from Mercury Electronics, which offers various frequencies within the same package form factor. The series typically provides standard XO options with consistent physical dimensions. Other variants in the series differ primarily in frequency and potentially voltage levels while maintaining similar package types.

Replacement Considerations

Direct substitutes may include other 10.4 MHz LVCMOS oscillators in 4-SMD packages from different manufacturers. Verify pinout compatibility and electrical specifications such as current consumption and startup time. Ensure thermal performance matches the original design requirements.