18QHTF21-20.004-OE

Oscillators Overview

The 18QHTF21-20.004-OE is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a nominal frequency of 20.004 MHz with an LVCMOS output signal. The device requires a 1.8V supply voltage and features an Enable/Disable control function for power management. Frequency stability is specified at ±50ppm. The component is housed in a compact 4-SMD, No Lead package with dimensions of 2.0x1.6 mm, suitable for surface-mount applications.

Oscillators Feature Summary

• LVCMOS output interface for digital logic compatibility
• Integrated Enable/Disable pin for active power control
• Compact 4-SMD no-lead surface mount package

Oscillators Applications

• General purpose clock generation in embedded systems
• Timing reference for microcontrollers and processors
• Digital communication interfaces requiring stable clock sources

Oscillators Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against the target circuit design before procurement. Confirm that the 1.8V supply voltage aligns with the system power rails. Ensure the PCB footprint matches the 2.0x1.6 mm SMD package dimensions to prevent assembly issues. Cross-reference the manufacturer datasheet for detailed electrical characteristics and recommended soldering profiles.

Oscillators Selection Notes

Select this component when a low-voltage 1.8V operation is required alongside precise timing needs. The ±50ppm stability suits most general digital applications where high-end RF precision is not critical. Consider the enable/disable feature if power conservation during idle states is a design priority. The small form factor makes it ideal for space-constrained portable or industrial devices.

Oscillators Part Context

Mercury Electronics Ind. Co. Ltd specializes in frequency control products, including quartz crystals and oscillators. This model belongs to their standard XO series, designed for cost-effective and reliable timing solutions. The company has decades of experience in Taiwan's quartz industry, providing components widely used in consumer electronics and industrial equipment.

Oscillators Replacement Considerations

Direct substitutes must match the 20.004 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD 2.0x1.6mm package. Verify equivalent stability and enable functionality. Check pinout compatibility to ensure seamless integration without PCB redesign.