18QHTF21-40.320-PD

Oscillators Overview

The 18QHTF21-40.320-PD is a standard crystal oscillator manufactured by Mercury Electronic Ind. Co., Ltd. It operates at a frequency of 40.320 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 2.0 x 1.6 mm. This component is designed for applications requiring precise timing signals in space-constrained electronic systems.

Oscillators Feature Summary

• LVCMOS output logic for digital interface compatibility
• Integrated standby mode for power reduction
• Compact surface-mount package design

Oscillators Applications

• General purpose timing clock generation
• Digital signal processing circuits
• Communication equipment modules

Oscillators Procurement Notes

Verify the specific ordering suffix PD against the manufacturer's current datasheet to ensure correct packaging and tape-and-reel specifications. Confirm that the 1.8V supply requirement aligns with your system's power rails before integration. Check for any recent revisions to the mechanical drawing regarding the 4-SMD footprint.

Oscillators Selection Notes

Select this component when a low-voltage 1.8V operation is required alongside a small form factor. Ensure the LVCMOS output swing matches the input thresholds of the receiving logic. Consider the operating temperature range specified in the official documentation if the environment exceeds standard commercial limits.

Oscillators Part Context

This part belongs to the Mercury Electronics SMD oscillator series, which focuses on quartz-based timing solutions. The manufacturer has decades of experience in Taiwan's frequency control industry. The 18QHTF21 series typically offers standard frequencies with integrated power-down capabilities for portable and battery-operated devices.

Oscillators Replacement Considerations

Direct substitutes must match the 40.320 MHz frequency, 1.8V supply, LVCMOS output, and 2.0x1.6mm package. Verify pinout compatibility and electrical characteristics such as load capacitance and drive level before cross-referencing other manufacturers' offerings.