18QHTF21-43.500-OE

Oscillators Overview

The 18QHTF21-43.500-OE is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 43.5 MHz and utilizes LVCMOS output logic. The device supports a supply voltage of 1.8V and includes an enable/disable control function. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0mm x 1.6mm.

Oscillators Feature Summary

• Supports LVCMOS output logic for digital interface compatibility
• Features low voltage operation with 1.8V supply requirement
• Includes hardware enable and disable control functionality

Oscillators Applications

• General purpose clock signal generation
• Embedded system timing references
• Consumer electronics internal clocks

Oscillators Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against the official datasheet before integration. Confirm that the 1.8V supply rail meets the current consumption specifications during active and disabled states to ensure stable operation within the target circuit design constraints.

Oscillators Selection Notes

Select this component when a small form factor 2.0x1.6mm footprint is required alongside LVCMOS outputs. Ensure the application environment temperature range aligns with the specified operating limits. Consider the enable pin functionality if power management through software control is necessary for the system architecture.

Oscillators Part Context

This part belongs to the 18QHTF series of surface-mount oscillators from Mercury Electronics. The series typically offers various frequencies and package sizes. This specific model represents a standard XO variant designed for cost-sensitive applications requiring reliable timing signals in portable devices.

Oscillators Replacement Considerations

Direct substitutes include other 43.5MHz LVCMOS oscillators in 4-SMD packages with 1.8V operation. Verify pinout compatibility and electrical parameters such as phase noise and jitter before swapping. Cross-reference with Mercury's own variants like the 18QHTF21-43.000-OE for similar form factors.