18QHTF21-75.870-OE

Overview

The 18QHTF21-75.870-OE is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd, designed for precision timing applications requiring a nominal frequency of 75.87 MHz. This component utilizes LVCMOS output logic to ensure compatibility with a wide range of digital systems and interfaces. It operates at a supply voltage of 1.8V and features an enable/disable control function for power management optimization. The device is housed in a compact 4-SMD, No Lead package with dimensions of 2.0mm x 1.6mm, suitable for space-constrained surface-mount designs. It supports an operating temperature range typical for commercial or industrial standards, ensuring reliable performance in various electronic environments.

Feature Summary

• Provides stable clock signals via LVCMOS output logic for digital circuit synchronization
• Incorporates enable/disable functionality to optimize system power consumption
• Utilizes a compact 4-SMD no-lead surface mount package for automated assembly

Applications

• High-speed data communication equipment requiring precise clock sources
• Consumer electronics utilizing low-voltage digital processing units
• Industrial control systems needing reliable timing references

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your design specifications before procurement. Confirm that the 1.8V supply voltage aligns with your system's power rails. Ensure the PCB footprint matches the 2.0x1.6mm SMD package dimensions. Check for any specific reflow soldering profile recommendations provided by the manufacturer to maintain component integrity during assembly.

Selection Notes

Select this oscillator when a 75.87 MHz reference is required with LVCMOS compatibility. Consider the 1.8V operation if power efficiency is critical compared to higher voltage alternatives. Evaluate the small form factor benefits for dense board layouts. Compare phase noise and jitter specifications against other Mercury models if signal purity is paramount for your application.

Part Context

This part belongs to the 18QHTF21 series of standard crystal oscillators from Mercury Electronics. The series offers various frequencies and packaging options tailored for modern electronics. Mercury Electronic has extensive experience in quartz crystal manufacturing, providing reliable frequency control solutions. This specific model represents their capability to produce high-frequency oscillators in miniature packages.

Replacement Considerations

Direct substitutes may include other 18QHTF21 series variants with different frequencies but identical pinouts and electrical characteristics. Cross-reference with similar LVCMOS oscillators from Mercury Electronics offering compatible voltage and package dimensions. Verify functional equivalence regarding enable pins and output drive strength before substitution.