18QHTF21-27.120-OE

Oscillators Overview

The 18QHTF21-27.120-OE is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 27.12 MHz and utilizes LVCMOS output logic. The device supports a supply voltage of 1.8V and includes an enable/disable function for power management. It is housed in a compact 4-SMD, No Lead package, designed for surface-mount applications requiring precise timing signals.

Oscillators Feature Summary

• Integrates enable and disable functionality for flexible power control
• Utilizes LVCMOS output logic for standard digital interface compatibility
• Features a leadless SMD package for automated surface-mount assembly

Oscillators Applications

• Flexible timing circuits requiring low-voltage operation
• Digital systems utilizing LVCMOS logic interfaces
• Compact electronic devices with space-constrained PCB layouts

Oscillators Procurement Notes

Verify the specific operating temperature range and load capacitance requirements against the target system design before procurement. Confirm that the 1.8V supply voltage aligns with the host circuit's power rails. Ensure the 4-SMD no-lead package footprint matches the PCB silkscreen and solder mask definitions to prevent assembly defects during surface-mount processing.

Oscillators Selection Notes

Select this component when a low-voltage 1.8V supply is required alongside precise frequency stability. The integrated enable/disable feature makes it suitable for battery-powered or power-sensitive designs. The LVCMOS output ensures direct interfacing with standard digital logic without additional level shifting. Consider the leadless package for high-density board layouts.

Oscillators Part Context

This model belongs to the Mercury Electronics series of quartz-based oscillators. The manufacturer has specialized in frequency control products since 1973, establishing expertise in Taiwan's quartz industry. The part represents a standard XO configuration within their portfolio, balancing performance with compact physical dimensions for modern electronics.

Oscillators Replacement Considerations

Direct substitutes must match the 27.12 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD no-lead package. Verify pinout compatibility and thermal characteristics. Cross-reference with other manufacturers offering similar low-profile oscillators with enable functions to ensure equivalent electrical performance and mechanical fit.