18QHTF21-86.985-PD

Overview

The 18QHTF21-86.985-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 86.985 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. The component is engineered to provide stable clock signals within specified operating temperature ranges, suitable for digital systems requiring precise timing references.

Feature Summary

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

Applications

• Digital signal processing systems
• Communication equipment clocking
• Embedded system timing references

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your circuit design before procurement. Confirm that the 1.8V supply voltage aligns with your system's power rails. Ensure the 4-SMD no lead package footprint matches your PCB layout constraints. Check for any specific RoHS compliance documentation if required by your manufacturing standards.

Selection Notes

Select this model when a fixed 86.985 MHz frequency is required with low power consumption capabilities. The LVCMOS output is suitable for standard digital logic families. Consider the 1.8V operating voltage for compatibility with modern low-voltage integrated circuits. The compact SMD package aids in space-constrained designs.

Part Context

This part belongs to the Mercury Electronics 18QHTF21 series of standard crystal oscillators. The series offers various frequencies and voltage options, all sharing similar packaging and functional characteristics. Mercury Electronics has a long history in quartz crystal manufacturing, providing frequency control products including TCXOs and OCXOs.

Replacement Considerations

Direct substitutes include other 18QHTF21 variants with different frequencies such as 18QHTF21-96.768-PD or 18QHTF21-51.200-PD, provided the frequency difference is acceptable. Cross-brand replacements require matching LVCMOS output, 1.8V supply, and 4-SMD package dimensions.