18QHTF21-112.120-PD

Overview

The 18QHTF21-112.120-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd, operating at a frequency of 112.12 MHz. It utilizes LVCMOS output logic and functions with a supply voltage of 1.8V. The device features a standby mode for power down capabilities. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0x1.6 mm.

Feature Summary

• Supports LVCMOS output logic for digital interface compatibility
• Includes standby functionality to reduce power consumption during inactive periods
• Designed as a standard XO (Crystal Oscillator) unit

Applications

• Digital signal processing systems requiring precise clock timing
• Communication equipment utilizing LVCMOS interfaces
• Embedded systems needing low-voltage oscillator solutions

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 constraints. Check for any specific RoHS compliance documentation if required by your manufacturing standards.

Selection Notes

Select this component when a 112.12 MHz clock source is required with LVCMOS outputs. Consider the 1.8V operating voltage and the small 2.0x1.6 mm form factor for space-constrained designs. Evaluate the need for standby power-down features to manage energy efficiency in portable or battery-operated applications.

Part Context

This part belongs to the 18QHTF21 series of surface-mount oscillators from Mercury Electronics. The series offers various frequencies and voltages, typically packaged in 4-SMD No Lead formats. The 'PD' suffix indicates the inclusion of a power-down or standby control feature, distinguishing it from continuously running variants within the same family.

Replacement Considerations

Direct substitutes must match the 112.12 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD No Lead package. Verify pinout compatibility and thermal characteristics. Cross-reference with other manufacturers offering similar SMD oscillators if availability is an issue.