18QHTF21-120.200-OE

Overview

The 18QHTF21-120.200-OE is a crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd, operating at a frequency of 120.2 MHz. It utilizes LVCMOS output logic and functions with a supply voltage of 1.8V. The component features an enable/disable control pin for power management. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0mm x 1.6mm.

Feature Summary

• Supports LVCMOS output logic for standard digital interfacing
• Includes enable/disable functionality for power optimization
• Utilizes a small form factor surface-mount package

Applications

• High-speed data communication systems requiring precise clocking
• Embedded processing units needing stable timing references
• Consumer electronics utilizing low-voltage logic families

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your circuit design before procurement. Confirm that the 1.8V supply voltage aligns with your system's power rails. Ensure the PCB footprint matches the 2.0x1.6mm SMD package dimensions to prevent assembly issues. Check for any specific reflow soldering profile recommendations provided by the manufacturer.

Selection Notes

Select this component when a 120.2 MHz clock signal is required within a low-power, space-constrained environment. The LVCMOS output ensures compatibility with standard CMOS logic levels. The enable pin allows for dynamic power management, which is critical for battery-operated devices. Consider the operating temperature range if the device will be used in extreme environmental conditions.

Part Context

This part belongs to the 18QHTF21 series of crystal oscillators from Mercury Electronics. The series is characterized by its small footprint and low voltage operation. Similar parts in the series vary primarily by frequency and output logic type. The 'OE' suffix typically denotes the presence of an enable pin, distinguishing it from standard XO variants without control inputs.

Replacement Considerations

Direct replacements must match the 120.2 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD No Lead package. Verify that substitute components offer equivalent phase noise and jitter specifications. Ensure the replacement part includes the enable/disable feature if power management is required in the application.