18QHTF21-4.0625-PD

Oscillators Overview

The 18QHTF21-4.0625-PD is a standard crystal oscillator manufactured by Mercury Electronic Ind. Co., Ltd. It operates at a frequency of 4.0625 MHz with an LVCMOS output logic level. The device requires a 1.8V supply voltage and features a power-down (standby) function for energy management. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0 x 1.6 mm.

Oscillators Feature Summary

• Supports standby mode via power-down control
• Utilizes LVCMOS output interface
• Compact surface-mount form factor

Oscillators Applications

• General timing circuits requiring low-power operation
• Embedded systems with space constraints
• Digital signal processing interfaces

Oscillators Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your system design before procurement. Confirm that the 1.8V supply voltage aligns with your power rail specifications. Ensure the PCB footprint matches the 2.0x1.6mm SMD package dimensions to prevent assembly errors during manufacturing.

Oscillators Selection Notes

Select this component when a precise 4.0625 MHz clock source is required with minimal power consumption. The integrated power-down feature makes it suitable for battery-operated devices. Consider the small package size if board real estate is limited compared to larger oscillator packages.

Oscillators Part Context

This part belongs to the QHTF21 series from Mercury Electronic, designed for high-reliability timing applications. The series typically offers various frequencies and supply voltages, catering to diverse digital circuit needs while maintaining a consistent physical footprint and performance profile across the family.

Oscillators Replacement Considerations

Direct substitutes must match the 4.0625 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD no-lead package. Verify pin compatibility and thermal characteristics to ensure seamless integration without redesigning the host circuit board.