18QHTF21-38.740-PD

Oscillators Overview

The 18QHTF21-38.740-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 38.74 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 with dimensions of 2.0x1.6mm.

Oscillators Feature Summary

• Supports low voltage operation at 1.8V
• Includes standby and power-down functionality
• Utilizes LVCMOS output logic

Oscillators Applications

• General clock signal generation
• Digital circuit timing references
• Embedded system synchronization

Oscillators Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against the target application design specifications. Confirm that the 1.8V supply voltage aligns with the receiving logic levels. Ensure the 4-SMD no-lead package footprint matches the PCB layout constraints to guarantee proper soldering and mechanical stability during assembly.

Oscillators Selection Notes

Select this component when a precise 38.74 MHz reference is required within space-constrained designs. The choice is driven by the need for low-power operation via the standby feature and compatibility with 1.8V logic families. Consider the small form factor as a primary advantage for high-density board layouts where larger packages are not feasible.

Oscillators Part Context

This part belongs to the 18QHTF21 series from Mercury Electronics, which specializes in quartz crystal products. The manufacturer has a history dating back to 1973, focusing on frequency control solutions. This specific model represents a standard XO variant designed for modern electronic applications requiring reliable timing signals.

Oscillators Replacement Considerations

Compatible substitutes include other 38.74 MHz LVCMOS oscillators in similar SMD packages. Verify electrical parameters such as supply voltage and output swing before substitution. Ensure thermal characteristics and operating temperature ranges match the original specification to maintain system reliability.