18QHTF21-11.05992-PD

Overview

The 18QHTF21-11.05992-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 11.05992 MHz and utilizes LVCMOS output logic. The device is designed for a supply voltage of 1.8V and features a standby or power-down mode capability. It is housed in a compact 4-SMD, No Lead package, suitable for surface-mount applications requiring precise timing signals.

Feature Summary

• Supports LVCMOS output logic for digital interface compatibility
• Includes standby or power-down functionality for energy management
• Utilizes a 4-SMD no-lead surface mount package design

Applications

• General purpose clock signal generation
• Digital circuit timing reference
• Embedded system clock sources

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your circuit design before procurement. Confirm that the 1.8V supply voltage aligns with your system's power rails. Ensure the 4-SMD no-lead package dimensions fit within your PCB footprint constraints. Check for any specific operating temperature range limitations required by your application environment to ensure reliable performance under all conditions.

Selection Notes

Select this component when a stable 11.05992 MHz clock source is required for LVCMOS-compatible digital circuits. The choice is driven by the need for low-voltage operation at 1.8V and the integration of power-saving standby modes. Consider the small form factor of the 4-SMD package for space-constrained designs. Evaluate if the standard XO specifications meet the jitter and stability needs of the target application compared to other oscillator types.

Part Context

This part belongs to the 18QHTF21 series of SMD oscillators from Mercury Electronics. The series typically offers various frequencies with LVCMOS outputs and low-voltage operation. Mercury Electronics is a manufacturer specializing in quartz crystals and frequency control products, established in Taiwan with a long history in the industry. This specific model represents a standard configuration within their portfolio.

Replacement Considerations

Direct substitutes must match the 11.05992 MHz frequency, LVCMOS output, 1.8V supply, and 4-SMD no-lead package. Verify pinout compatibility and electrical characteristics such as current consumption and drive strength. Cross-reference with other manufacturers' equivalent SMD oscillators ensuring identical functional parameters.