18QHTF21-27.428571-PD

Oscillators Overview

The 18QHTF21-27.428571-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 27.428571 MHz with an LVCMOS output logic type. 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 2.0 x 1.6 mm. This component is designed for applications requiring precise timing signals in space-constrained electronic systems.

Oscillators Feature Summary

• Supports low voltage operation at 1.8V
• Includes standby and power-down functionality
• Utilizes LVCMOS output logic
• Features a compact surface-mount package

Oscillators Applications

• Portable consumer electronics
• Communication devices
• Embedded systems requiring precise clocking

Oscillators Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your circuit design before procurement. Ensure that the 1.8V supply voltage aligns with your system's power rails. Confirm that the 4-SMD no-lead package footprint matches your PCB layout to avoid assembly issues. Check for any specific handling instructions regarding electrostatic discharge protection during storage and installation.

Oscillators Selection Notes

Select this model when a small form factor is critical due to its 2.0x1.6mm size. Choose it for designs requiring low power consumption given the 1.8V operation and standby capabilities. Consider it for digital circuits needing LVCMOS compatibility. Evaluate if the standard frequency accuracy meets your application's timing needs compared to higher precision alternatives.

Oscillators Part Context

This part belongs to the 18QHTF21 series from Mercury Electronics, which specializes in quartz crystal products. The manufacturer has decades of experience in Taiwan's crystal industry. The series typically offers various frequencies within a small SMD package, catering to modern miniaturized electronic designs requiring reliable frequency control solutions.

Oscillators Replacement Considerations

Direct substitutes may include other 27.428571 MHz oscillators in 4-SMD packages with LVCMOS outputs and 1.8V operation. Verify pinout compatibility and physical dimensions before swapping. Alternative models from different manufacturers must match the electrical specifications and package type to ensure seamless integration without redesigning the PCB.