18QHTF21-40.500-OE

Oscillators Overview

The Mercury Electronics 18QHTF21-40.500-OE is a standard XO oscillator operating at 40.5 MHz. It utilizes LVCMOS output logic and functions with a 1.8V supply voltage. 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. The unit supports an operating temperature range from -40°C to +85°C.

Oscillators Feature Summary

• Integrates LVCMOS output logic for digital interface compatibility
• Includes enable/disable functionality for active power management
• Provides stable frequency generation within industrial temperature limits

Oscillators Applications

• Embedded system clock sources
• Digital signal processing timing references
• Communication module synchronization

Oscillators Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against the target circuit design before procurement. Confirm that the 1.8V supply voltage aligns with the system's power rails. Ensure the PCB footprint matches the 2.0mm x 1.6mm SMD package dimensions. Check for any specific reflow soldering profile recommendations provided by the manufacturer to ensure joint integrity during assembly processes.

Oscillators Selection Notes

Select this component when a low-voltage, small-footprint oscillator is required for high-density designs. The enable pin offers flexibility for power-sensitive applications. Verify that the LVCMOS output swing is compatible with the receiving logic inputs. Consider the thermal environment to ensure operation remains within the specified -40°C to +85°C range for reliable long-term performance.

Oscillators Part Context

This part belongs to the Mercury 18QHTF21 series of surface-mount crystal oscillators. The series is characterized by its small form factor and low power consumption. These components are designed for applications requiring precise timing in space-constrained electronic devices. The manufacturer specializes in frequency control products, offering various frequencies and packages within this family.

Oscillators Replacement Considerations

Direct substitutes include other 40.5 MHz LVCMOS oscillators in 2.0x1.6mm packages with 1.8V operation. Compatible alternatives must match the pinout configuration and enable/disable functionality. Verify that replacement parts offer equivalent frequency stability and temperature characteristics to maintain system timing accuracy.