18QHTF21-47.940-PD

Oscillators Overview

The 18QHTF21-47.940-PD is a crystal oscillator manufactured by Mercury Electronics Ind. Co., Ltd. It operates at a frequency of 47.94 MHz with an LVCMOS output logic level. The device supports a supply voltage of 1.8V and includes a standby (power down) function for energy management. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0x1.6 mm. This component is designed for standard clock applications requiring precise timing signals in space-constrained electronic systems.

Oscillators Feature Summary

• Supports low voltage operation at 1.8V
• Integrates standby mode for power reduction
• Utilizes LVCMOS output interface
• Features compact surface-mount packaging

Oscillators Applications

• General purpose clock signal generation
• Embedded system timing references
• Portable electronic devices requiring low power consumption

Oscillators Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your circuit design before ordering. Confirm that the 1.8V supply voltage aligns with your system's power rails. Ensure the PCB footprint matches the 2.0x1.6 mm SMD package dimensions to avoid assembly issues. Check for any specific handling instructions regarding electrostatic discharge protection during storage and installation.

Oscillators Selection Notes

Select this model when a 47.94 MHz clock source is required with minimal power consumption. The integrated standby feature makes it suitable for battery-operated applications. Consider the small form factor if board space is limited. Compare performance metrics such as phase noise and stability against other available oscillators to ensure compatibility with sensitive digital circuits.

Oscillators Part Context

This part belongs to the QHTF series of crystal oscillators from Mercury Electronics. The series offers various frequencies and voltage options within a standardized small outline package. These components are widely used in consumer electronics and industrial control systems where reliable timing is critical. The manufacturer has established expertise in frequency control products since 1973.

Oscillators Replacement Considerations

Direct substitutes may include other 47.94 MHz LVCMOS oscillators in 2.0x1.6mm packages from different manufacturers. Verify pinout compatibility and electrical specifications before swapping. Ensure the replacement part supports the same standby functionality and voltage range to maintain system behavior.