18QHTF21-40.444-OE

Oscillators Overview

The 18QHTF21-40.444-OE is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 40.444 MHz and utilizes LVCMOS output logic levels. The device is designed for low-voltage applications, functioning at a supply voltage of 1.8V. It features an enable/disable control pin for power management flexibility. The component is housed in a compact 4-SMD, No Lead package with dimensions of 2.0x1.6 mm, suitable for surface-mount assembly processes.

Oscillators Feature Summary

• LVCMOS output interface
• Enable/disable control functionality
• Compact 4-SMD no lead package

Oscillators Applications

• General purpose clock generation
• Embedded system timing
• Consumer electronics

Oscillators Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your circuit design before procurement. Confirm that the 1.8V supply voltage aligns with your system's power rails. Ensure the 4-SMD footprint matches your PCB layout constraints. Check for any specific ordering suffixes required for tape and reel packaging if applicable to your production volume.

Oscillators Selection Notes

Select this component when a precise 40.444 MHz clock signal is required in space-constrained designs. The LVCMOS output is compatible with standard digital logic families operating at 1.8V. Consider the enable/disable feature if power efficiency during idle states is a priority. The small form factor makes it ideal for portable devices or high-density boards where larger packages are not feasible.

Oscillators Part Context

Mercury Electronic Ind. Co., Ltd. has over 50 years of experience in manufacturing quartz crystals and is recognized as a pioneer in Taiwan's crystal industry. This oscillator belongs to their standard XO series, which provides reliable frequency control solutions. The company focuses on producing high-quality frequency control products for various electronic applications worldwide.

Oscillators Replacement Considerations

Direct substitutes include other 40.444 MHz LVCMOS oscillators in a 2.0x1.6mm 4-SMD package from different manufacturers. Verify pinout compatibility and electrical specifications such as current consumption and startup time. Ensure the replacement part supports the same enable/disable control logic level.