18QHTF21-79.960-PD

Overview

The 18QHTF21-79.960-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 79.96 MHz and utilizes LVCMOS output logic. The device is designed for a supply voltage of 1.8V and features a power-down function accessible via a standby mode. The component is housed in a compact 4-SMD, No Lead package with dimensions of 2.0x1.6 mm. This series supports wide temperature ranges and offers ultra-low current consumption characteristics suitable for portable applications.

Feature Summary

• Supports LVCMOS output logic for standard digital interfacing
• Includes power-down functionality to reduce current consumption during standby
• Designed for low voltage operation at 1.8V
• Utilizes a compact surface-mount package for space-constrained designs

Applications

• Portable electronic devices requiring low power consumption
• Communication systems utilizing standard clock signals
• Embedded systems with limited supply voltage constraints
• Consumer electronics needing precise timing references

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your system design before ordering. Confirm that the 1.8V supply voltage aligns with your target circuit's power rails. Ensure the 4-SMD no-lead package footprint matches your PCB layout specifications. Request the official datasheet from Mercury Electronics for detailed electrical parameters and reliability data.

Selection Notes

Select this model when a 79.96 MHz clock signal is required with LVCMOS compatibility. Consider the 1.8V operating voltage if your system architecture prioritizes low-power efficiency. The power-down feature is advantageous for battery-operated devices where standby current minimization is critical. Evaluate the thermal performance and stability across the specified operating temperature range for your application environment.

Part Context

This component belongs to the 18QHTF21 series of quartz-based oscillators produced by Mercury Electronics. The manufacturer has extensive experience in frequency control products, leveraging quartz crystal technology. The series is characterized by switchable quick-turn capabilities and programmable options for various industrial and consumer applications.

Replacement Considerations

Direct substitutes within the same series include models such as 18QHTF21-96.768-PD or 18QHTF21-6.000-PD, provided the frequency difference is acceptable for the application. Verify pinout and package dimensions remain identical when considering alternative frequencies from the same manufacturer.