18QHTF21-40.830-PD

Oscillators Overview

The 18QHTF21-40.830-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 40.83 MHz and utilizes LVCMOS output logic. The device is designed for a supply voltage of 1.8V and features a Standby (Power Down) function for power management. It is housed in a compact 4-SMD, No Lead package, suitable for surface-mount applications requiring precise timing signals.

Oscillators Feature Summary

• LVCMOS output logic for digital interface compatibility
• Integrated standby mode for power reduction
• Surface-mount 4-SMD no lead package design

Oscillators Applications

• Digital signal processing systems
• Communication equipment clocking
• Embedded system timing references

Oscillators Procurement Notes

Verify the specific suffix 'PD' confirms the Standby (Power Down) functionality against the manufacturer's official datasheet. Ensure the operating voltage requirement of 1.8V aligns with the target circuit design. Confirm the 4-SMD no lead package dimensions match the PCB footprint specifications to ensure proper assembly and electrical connection.

Oscillators Selection Notes

Select this component when a low-voltage 1.8V operation is required alongside power-saving capabilities. The LVCMOS output is appropriate for general-purpose digital logic interfaces. Consider the 40.83 MHz frequency specifically for applications requiring this exact clock rate rather than standard frequencies like 40 MHz or 50 MHz.

Oscillators Part Context

This part belongs to the 18QHTF21 series from Mercury Electronics, which specializes in quartz-based frequency control products. The series includes various frequencies and output types, with the PD suffix indicating power-down capability. Mercury Electronics has a long history in Taiwan manufacturing quartz crystals and oscillators.

Oscillators Replacement Considerations

Direct substitutes must match the 40.83 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD no lead package. Verify that any alternative component also supports the Standby (Power Down) feature to maintain equivalent power management functionality in the design.