18QHTF21-3.800-OE

Oscillators Overview

The 18QHTF21-3.800-OE is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 3.800 MHz and utilizes an LVCMOS output signal type. The device is designed for low-voltage applications, requiring a supply voltage of 1.8V. It features enable and disable functionality for power management. The component is housed in a compact 4-SMD, No Lead package, suitable for surface-mount assembly. It maintains a frequency stability of ±50ppm and functions within an operating temperature range of -40°C to 85°C.

Oscillators Feature Summary

• LVCMOS output interface for digital logic compatibility
• Enable/Disable control function for power optimization
• Compact 4-SMD no-lead surface mount package design

Oscillators Applications

• General purpose timing circuits requiring stable clock signals
• Embedded systems with low-voltage logic requirements
• Consumer electronics utilizing surface-mount technology

Oscillators Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your circuit design before procurement. Ensure that the 1.8V supply voltage aligns with your system's power rails. Confirm that the LVCMOS output levels are compatible with the receiving logic inputs. Check the operating temperature range limits to ensure suitability for the intended environmental conditions. Validate the physical dimensions of the 4-SMD package against your PCB footprint specifications.

Oscillators Selection Notes

Select this component when a precise 3.800 MHz clock source is required for low-power applications. The LVCMOS output makes it suitable for direct interfacing with microcontrollers or FPGAs without additional level shifting. Consider the ±50ppm stability for applications where moderate frequency accuracy is sufficient. The enable/disable feature allows for dynamic power management in battery-operated devices. Evaluate the thermal performance within the specified -40°C to 85°C range for industrial or commercial environments.

Oscillators Part Context

This oscillator belongs to the 18QHTF21 series from Mercury Electronics, which offers various frequencies and voltage options. The 'OE' suffix typically denotes a specific pinout or functional configuration distinct from other variants like 'PD'. Mercury Electronics specializes in quartz-based timing components, providing solutions for communication and computing industries. This specific model represents a standard XO variant optimized for cost-effective and space-constrained designs.

Oscillators Replacement Considerations

Direct replacements must match the 3.800 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD package. Verify equivalent stability and temperature ranges. Cross-reference pinouts carefully as suffixes may indicate functional differences.