18QHTF21-19.872-PD

Oscillators Overview

The 18QHTF21-19.872-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 19.872 MHz and utilizes an LVCMOS output signal format. 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 with dimensions of 2.0x1.6 mm.

Oscillators Feature Summary

• LVCMOS output interface for digital logic compatibility
• Integrated standby mode to reduce power consumption
• Compact surface-mount package design

Oscillators Applications

• Digital clock signal generation
• Data communication interfaces
• Microcontroller system clocks

Oscillators Procurement Notes

Verify the specific operating temperature range 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 footprint matches your PCB layout constraints. Check for any specific reflow soldering profile recommendations provided by the manufacturer to ensure assembly reliability.

Oscillators Selection Notes

Select this component when a precise 19.872 MHz reference is required for low-power digital applications. The LVCMOS output is suitable for direct interfacing with standard logic families. Consider the 1.8V operation if your system prioritizes lower voltage levels. The small form factor makes it appropriate for space-constrained designs where board real estate is limited.

Oscillators Part Context

This part belongs to the 18QHTF21 series from Mercury Electronics, which specializes in quartz crystal oscillators. The manufacturer has decades of experience in frequency control products. This specific model represents a standard XO variant within their portfolio, designed for general-purpose timing applications requiring stable frequency generation.

Oscillators Replacement Considerations

Compatible substitutes include other 19.872 MHz LVCMOS oscillators in similar packages. Verify pinout compatibility and electrical specifications such as voltage and current draw. Ensure the replacement part meets the same size constraints and performance standards.