18QHTF21-39.323146-PD

Oscillators Overview

The 18QHTF21-39.323146-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 39.323146 MHz with LVCMOS output logic. The device requires a 1.8V supply voltage and features a compact 4-SMD, No Lead package with dimensions of 2.0mm x 1.6mm. It includes a standby (power down) control function for energy management.

Oscillators Feature Summary

• Supports low-voltage operation at 1.8V
• Integrates standby mode for power reduction
• Utilizes LVCMOS output interface

Oscillators Applications

• General clock signal generation in electronic circuits
• Power-efficient embedded systems requiring standby capabilities
• Compact consumer electronics utilizing SMD packaging

Oscillators Procurement Notes

Verify the specific ordering suffix to ensure compatibility with required frequency tolerance and temperature range specifications. Confirm that the 1.8V supply requirement aligns with the target system design. Ensure the 4-SMD no-lead package footprint matches the PCB layout constraints before finalizing procurement orders.

Oscillators Selection Notes

Select this component when a precise 39.323146 MHz clock source is required within a space-constrained design. The choice is appropriate for applications necessitating a low-profile surface-mount solution with integrated power-down functionality. Evaluate the 1.8V operating voltage against available system rails to ensure direct compatibility without additional level shifting.

Oscillators Part Context

This model belongs to the Mercury 18QHTF21 series of standard XO oscillators. The series is characterized by small form factors suitable for modern portable devices. Mercury Electronics specializes in quartz-based timing components, leveraging decades of manufacturing expertise in Taiwan to produce reliable oscillator solutions.

Oscillators Replacement Considerations

Direct substitutes include other 18QHTF21 variants from Mercury with identical pinouts but different frequencies, such as the 18QHTF21-18.1059-PD or 18QHTF21-6.000-PD. Cross-brand replacements require matching the 2.0x1.6mm package, 1.8V supply, and LVCMOS output characteristics.