18QHTF21-4.560-OE

Oscillators Overview

The 18QHTF21-4.560-OE is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 4.56 MHz with an LVCMOS output logic level. The device requires a 1.8V supply voltage and includes 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. The unit supports an operating temperature range from -40°C to 85°C.

Oscillators Feature Summary

• Integrates an enable/disable pin for active power control
• Provides stable LVCMOS clock signals for digital circuits
• Utilizes a small form factor surface-mount package

Oscillators Applications

• Portable electronic devices requiring low power consumption
• Embedded systems utilizing microcontrollers
• Communication modules needing precise timing references

Oscillators Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your circuit design before ordering. Ensure the 1.8V supply rail is stable within the specified operating temperature range. Confirm that the enable signal polarity matches the system logic levels to prevent unintended shutdown states during operation.

Oscillators Selection Notes

Choose this component when a low-voltage, small-footprint oscillator with hardware control is required. Compare the 4.56 MHz frequency against available alternatives if standard rates like 4.0 MHz or 5.0 MHz suffice. Consider the thermal performance and stability specifications relative to the environmental conditions of the final assembly.

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 supply voltages. The suffix OE indicates the presence of an output enable feature, distinguishing it from basic XO models without control pins.

Oscillators Replacement Considerations

Direct substitutes must match the 4.56 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD no-lead package. Verify pin compatibility and enable logic polarity. Check datasheets for equivalent parts from other manufacturers offering similar size and electrical characteristics.