18QHTF21-47.000-PD

Oscillators Overview

The 18QHTF21-47.000-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a nominal frequency of 47.0 MHz with LVCMOS output logic. The device supports a supply voltage of 1.8V and features a standby (power down) function for energy efficiency. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0mm x 1.6mm. The component is designed for surface mount applications and typically exhibits a frequency stability of ±50ppm over an operating temperature range of -40°C to 85°C.

Oscillators Feature Summary

• Compact 2.0x1.6mm surface-mount package suitable for space-constrained designs
• LVCMOS output interface compatible with standard digital logic
• Integrated standby mode for power management optimization

Oscillators Applications

• General-purpose clock generation for embedded systems
• Timing reference for microcontrollers and processors
• Data communication interface synchronization

Oscillators Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your circuit design before procurement. Ensure the 1.8V supply rail meets the current consumption specifications during active operation. Confirm that the PCB footprint matches the 4-SMD no-lead package dimensions to avoid assembly issues. Check for any specific reflow soldering profile recommendations provided by the manufacturer to ensure reliability.

Oscillators Selection Notes

Select this component when a low-profile, 1.8V LVCMOS oscillator is required for timing applications. Consider the ±50ppm stability specification against your system's jitter and phase noise requirements. Evaluate the thermal performance within the -40°C to 85°C range if operating in extreme environments. Compare power consumption in both active and standby modes against alternative solutions to optimize overall system battery life or thermal budget.

Oscillators Part Context

This part belongs to the 18QHTF21 series from Mercury Electronics, which offers various frequencies in a standardized small outline package. The series is designed for high-volume consumer and industrial electronics where size and power efficiency are critical. Similar parts in the series differ primarily in output frequency and potentially stability grades, while maintaining consistent pinout and mechanical dimensions for easy substitution within the same family.

Oscillators Replacement Considerations

Direct replacements must match the 47.0MHz frequency, 1.8V supply, LVCMOS output, and 2.0x1.6mm package. Verify that substitute components offer equivalent or better frequency stability and phase noise characteristics. Ensure the replacement part supports the same standby functionality and operates within the specified temperature range.