18QHTF21-26.562-PD

Oscillators Overview

The 18QHTF21-26.562-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a nominal frequency of 26.562 MHz and utilizes LVCMOS output logic. 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 2.0mm x 1.6mm.

Oscillators Feature Summary

• Integrates LVCMOS output interface for digital signal compatibility
• Supports standby mode to reduce power consumption during idle periods
• Utilizes surface-mount packaging for automated assembly integration

Oscillators Applications

• General-purpose clock signal generation in embedded systems
• Timing reference sources for microcontroller units
• Data communication interface synchronization circuits

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 power rails. Ensure the 4-SMD no-lead package footprint matches the PCB layout specifications to guarantee proper solder joint formation and mechanical stability during operation.

Oscillators Selection Notes

Select this component when a precise 26.562 MHz timing source is required within space-constrained designs. The choice is driven by the need for low-power operation via the standby feature and the convenience of surface-mount assembly. Consider the operating temperature range and stability requirements relative to the environmental conditions of the final application to ensure reliable long-term performance.

Oscillators Part Context

This part belongs to the 18QHTF21 series from Mercury Electronics, which focuses on small-form-factor crystal oscillators. The series typically offers various frequencies and voltage options within a standardized 2.0x1.6mm footprint. This specific model represents a standard XO variant optimized for applications requiring stable clock signals with minimal board space utilization.

Oscillators Replacement Considerations

Direct substitutes must match the 26.562 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD no-lead package dimensions. Verify pinout compatibility and electrical characteristics such as phase noise and jitter if available. Cross-reference with other manufacturers offering similar surface-mount oscillators to ensure functional equivalence.