18QHTF21-40.800-OE

Oscillators Overview

The 18QHTF21-40.800-OE is a standard crystal oscillator manufactured by Mercury Electronic Ind. Co., Ltd. It operates at a frequency of 40.8 MHz and utilizes LVCMOS output logic. The device supports a supply voltage of 1.8V and features an enable/disable control function. It is housed in a compact 4-SMD, No Lead package, designed for surface-mount applications requiring precise timing signals.

Oscillators Feature Summary

• LVCMOS output logic for digital interface compatibility
• Integrated enable/disable control functionality
• Compact 4-SMD no-lead surface mount package

Oscillators Applications

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

Oscillators Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to ensure correct frequency and electrical specifications. Confirm that the required operating temperature range and load conditions align with the datasheet parameters before finalizing procurement orders.

Oscillators Selection Notes

Select this component when a low-voltage 1.8V supply is required alongside LVCMOS outputs. The enable/disable feature allows for power management in battery-operated devices. Ensure the PCB footprint matches the 4-SMD no-lead package dimensions specified in the mechanical drawings.

Oscillators Part Context

This model belongs to the Mercury Electronics standard XO series, which provides reliable quartz-based timing solutions. The brand has specialized in frequency control products since 1973, offering various oscillator types including TCXO and VCTCXO for diverse industrial and consumer electronics markets.

Oscillators Replacement Considerations

Cross-reference part numbers such as 18QHTF21-40.370-OE or 18QHTF21-8.640-OE if different frequencies are needed within the same package and voltage family. Verify pinout and electrical characteristics match before substitution.