18QHTF21-35.811-PD

Oscillators Overview

The 18QHTF21-35.811-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 35.811 MHz and utilizes LVCMOS output logic levels. The device is designed for low-voltage applications, requiring a supply voltage of 1.8V. It features a standby mode for power-down functionality to conserve energy when not in active use. The component is housed in a compact 4-SMD, No Lead package, suitable for surface-mount assembly on printed circuit boards.

Oscillators Feature Summary

• LVCMOS output logic interface
• 1.8V supply voltage operation
• Standby power-down capability
• Compact 4-SMD no-lead package

Oscillators Applications

• General-purpose clock signal generation
• Low-power embedded systems
• Digital circuit timing references

Oscillators Procurement Notes

Verify the exact frequency tolerance and load capacitance requirements against your specific circuit design before procurement. Confirm that the 1.8V supply voltage aligns with your system's power rails. Ensure the 4-SMD package footprint matches your PCB layout constraints. Check for any specific operating temperature range limitations required by your application environment.

Oscillators Selection Notes

Select this component when a precise 35.811 MHz clock source is needed with minimal power consumption. The LVCMOS output is compatible with standard digital logic families. Consider the 1.8V requirement if your system operates at lower voltages than traditional 3.3V or 5V standards. The standby feature adds value for battery-operated devices requiring extended operational life.

Oscillators Part Context

This oscillator belongs to Mercury Electronics' series of surface-mount crystal oscillators. The brand has a long history in quartz crystal manufacturing, positioning itself as a pioneer in Taiwan for such components. This specific model represents a standard XO variant, distinct from their programmable TCXO or ultra-low jitter differential output lines.

Oscillators Replacement Considerations

No public confirmed substitute part numbers are available in the provided documentation. When seeking alternatives, ensure the replacement matches the 35.811 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD package dimensions exactly.