18QHTF21-19.4445-PD

Oscillators Overview

The 18QHTF21-19.4445-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 19.4445 MHz and utilizes LVCMOS output levels. The device is designed for 1.8V supply voltage operation and features a standby mode for power down functionality. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0x1.6mm.

Oscillators Feature Summary

• LVCMOS output interface
• Standby power down capability
• Compact surface mount package

Oscillators Applications

• General clock signal generation
• Digital circuit timing
• Embedded system clocks

Oscillators Procurement Notes

Verify the specific ordering suffix to ensure compatibility with required frequency and voltage specifications. Confirm that the 4-SMD no lead package matches the target PCB footprint. Check RoHS compliance status if environmental regulations apply to the assembly process.

Oscillators Selection Notes

Select this component when a 19.4445 MHz clock source is required for low-voltage digital logic. Ensure the design supports 1.8V operation and accommodates the small 2.0x1.6mm footprint. Consider the standby feature if power management during idle states is necessary for the application.

Oscillators Part Context

Mercury Electronic Ind. Co., Ltd. is a pioneer in the quartz crystal industry in Taiwan with decades of manufacturing experience. This oscillator belongs to their line of frequency control products, which includes various types of crystals and oscillators designed for precise timing applications.

Oscillators Replacement Considerations

Direct substitutes must match the 19.4445 MHz frequency, 1.8V LVCMOS output, and 4-SMD 2.0x1.6mm package. Verify pinout compatibility and electrical characteristics before swapping.