18QHTF21-27.505-PD

Oscillators Overview

The 18QHTF21-27.505-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 27.505 MHz and utilizes LVCMOS output logic. The device is designed for a supply voltage of 3.3V and features a power-down function via standby control. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0mm x 1.6mm.

Oscillators Feature Summary

• Supports low-voltage CMOS logic levels for digital interface compatibility
• Includes power-down capability to reduce energy consumption during idle states
• Utilizes a surface-mount package optimized for automated assembly processes

Oscillators Applications

• General clock signal generation for embedded systems
• Timing reference for microcontrollers and processors
• Data communication interface synchronization

Oscillators Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against the target circuit design before procurement. Confirm that the 3.3V supply voltage aligns with the system power rails. Ensure the 2.0x1.6mm footprint matches the PCB layout constraints. Check for any specific operating temperature range limitations required by the application environment.

Oscillators Selection Notes

Select this component when a precise 27.505 MHz timing source is required for low-power applications. Consider the LVCMOS output swing if interfacing with 3.3V logic families. Evaluate the need for power-down functionality to manage system energy efficiency. Compare physical size constraints against alternative packages if space is limited.

Oscillators Part Context

This part belongs to the 18QHTF21 series of surface-mount crystal oscillators from Mercury Electronics. The series typically offers various frequencies and voltage options within a standardized small form factor. These components are designed for high reliability in consumer electronics and industrial control applications requiring stable clock signals.

Oscillators Replacement Considerations

Direct substitutes include other 27.505 MHz LVCMOS oscillators in 2.0x1.6mm packages with 3.3V operation. Verify pinout compatibility and electrical specifications such as phase noise and jitter before substitution.