18QHTF21-42.1375-OE

Oscillators Overview

The 18QHTF21-42.1375-OE is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 42.1375 MHz and utilizes LVCMOS output logic. The device requires a 1.8V supply voltage and features an enable/disable control function for power management. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0mm x 1.6mm. This component is designed for applications requiring precise clock signals in space-constrained electronic systems.

Oscillators Feature Summary

• Integrates LVCMOS output logic for direct interfacing with digital circuits
• Includes hardware enable/disable pin for active power state control
• Utilizes a leadless surface-mount package for automated assembly compatibility

Oscillators Applications

• Clock signal generation for high-speed data transmission interfaces
• Timing reference for embedded microprocessor systems
• Synchronization source for communication module clocks

Oscillators Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against the system design specifications before procurement. Confirm that the 1.8V supply rail stability meets the oscillator's operational limits. Ensure the PCB footprint matches the 4-SMD no-lead package dimensions to prevent soldering defects during assembly.

Oscillators Selection Notes

Select this component when a low-voltage 1.8V supply is available and space constraints necessitate a 2.0x1.6mm form factor. Consider the LVCMOS output swing levels to ensure compatibility with downstream logic inputs. Evaluate the need for enable/disable functionality to manage system power consumption during idle states.

Oscillators Part Context

This part belongs to the 18QHTF21 series of surface-mount oscillators from Mercury Electronics. The series offers various frequencies within a standardized small outline package. The suffix OE indicates specific packaging or handling characteristics defined by the manufacturer. These oscillators are positioned as solutions for portable electronics and compact industrial devices requiring reliable timing.

Oscillators Replacement Considerations

Direct replacements must match the 42.1375 MHz frequency, 1.8V supply, and LVCMOS output type. Verify that alternative packages maintain the 2.0x1.6mm footprint for board compatibility. Check if substitute parts offer identical enable/disable pin configurations to preserve existing circuit functionality.