18QHTF21-10.7477-PD

Overview

The 18QHTF21-10.7477-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 10.7477 MHz and utilizes LVCMOS output logic levels. The device supports a supply voltage of 1.8V and includes a standby or power-down function for energy management. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0x1.6mm, suitable for surface-mount applications requiring precise timing signals.

Feature Summary

• Supports low-voltage operation at 1.8V
• Integrates power-down functionality for standby mode
• Provides LVCMOS output signal compatibility

Applications

• General-purpose digital circuit timing
• Embedded system clock generation
• Consumer electronics timing references

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your design specifications before procurement. Ensure the 1.8V supply rail stability matches the datasheet recommendations to maintain oscillation reliability. Confirm that the 4-SMD no-lead package footprint aligns with your PCB layout constraints. Cross-reference the part number suffix to ensure the correct packaging variant is ordered.

Selection Notes

Select this component when a 10.7477 MHz reference is required with minimal power consumption. The integrated power-down feature makes it suitable for battery-operated devices. Consider the small 2.0x1.6mm form factor for space-constrained designs. Verify that LVCMOS output swing meets the input thresholds of the downstream logic components.

Part Context

This model belongs to the 18QHTF21 series of surface-mount crystal oscillators from Mercury Electronics. The series offers various frequencies within a standardized 4-SMD package. Mercury Electronics specializes in quartz-based frequency control products, providing timing solutions for industrial and consumer markets.

Replacement Considerations

Direct substitutes must match the 10.7477 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD 2.0x1.6mm package. Verify pinout compatibility and electrical characteristics before substitution.