18QHTF21-27.480-PD

Oscillators Overview

The 18QHTF21-27.480-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a nominal frequency of 27.48 MHz and utilizes LVCMOS output logic. The device is designed for a supply voltage of 1.8V and features a standby or power-down function to manage energy consumption. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0mm x 1.6mm. This component is suitable for applications requiring precise timing signals in low-voltage digital systems.

Oscillators Feature Summary

• Supports LVCMOS output logic for direct interface with digital circuits
• Includes standby mode capability for power management
• Utilizes a leadless surface-mount package for space-constrained designs

Oscillators Applications

• Digital signal processing systems
• Communication equipment timing references
• Embedded microcontroller clock sources

Oscillators Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your circuit design before procurement. Ensure the 1.8V supply rail stability meets the oscillator's operational specifications. Confirm that the PCB footprint matches the 2.0x1.6mm 4-SMD no-lead package dimensions to avoid assembly issues.

Oscillators Selection Notes

Select this model when a 27.48 MHz clock signal is required with low voltage operation. Consider the LVCMOS output compatibility with downstream logic levels. Evaluate the need for power-down functionality if system efficiency is critical. Compare package size constraints against alternative oscillator families from the same manufacturer.

Oscillators Part Context

This part belongs to the 18QHTF21 series of surface-mount oscillators from Mercury Electronics. The series offers various frequencies within a small form factor. The 'PD' suffix indicates the inclusion of a power-down control feature. These components are part of Mercury's broader portfolio of quartz-based frequency control products established since 1973.

Oscillators Replacement Considerations

Direct substitutes include other 27.48 MHz LVCMOS oscillators in 2.0x1.6mm packages from Mercury Electronics, such as the 18QHTF21-27.000-PD or similar variants within the same series, provided electrical parameters match.