18QHTF21-81.300-PD

Overview

The 18QHTF21-81.300-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd, operating at a frequency of 81.3 MHz. It utilizes LVCMOS output logic and functions with a supply voltage of 1.8V. The component features a standby mode for power down capabilities. It is housed in a compact 4-SMD, No Lead package, suitable for surface-mount applications requiring precise timing signals.

Feature Summary

• Supports LVCMOS output logic for digital interface compatibility
• Includes standby functionality to reduce power consumption during idle states
• Designed for surface-mount assembly using a leadless SMD package

Applications

• General-purpose clock signal generation in electronic circuits
• Timing reference sources for digital systems requiring 81.3 MHz stability
• Embedded devices utilizing low-voltage 1.8V power domains

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 dimensions fit within your PCB footprint constraints. Check for any specific reflow soldering profile recommendations provided in the official datasheet to ensure reliable assembly.

Selection Notes

Select this component when an 81.3 MHz clock source is required with LVCMOS outputs. The 1.8V operating voltage makes it suitable for modern low-power digital designs. Consider the physical size of the 4-SMD package for space-constrained layouts. Verify that the standby feature meets your power management strategy. Ensure compatibility with the target application's temperature range and stability requirements.

Part Context

This part belongs to the 18QHTF21 series of crystal oscillators from Mercury Electronics. The series typically offers various frequencies with standardized packaging. These components are designed for general timing applications where stable clock signals are essential. The manufacturer specializes in frequency control products, providing solutions for diverse electronic needs.

Replacement Considerations

Direct substitutes must match the 81.3 MHz frequency, LVCMOS output, 1.8V supply, and 4-SMD package. Verify pinout compatibility and electrical specifications before swapping. Consult the manufacturer's cross-reference list for approved alternatives.