18QHTF21-40.4166-PD

Oscillators Overview

The 18QHTF21-40.4166-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 40.4166 MHz and utilizes LVCMOS output logic. The device functions with a supply voltage of 1.8V and features a standby mode for power down capabilities. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0x1.6mm.

Oscillators Feature Summary

• Supports low voltage operation at 1.8V
• Includes standby functionality for power management
• Utilizes LVCMOS output interface

Oscillators Applications

• General clock signal generation
• Embedded system timing references
• Digital circuit synchronization

Oscillators Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your design specifications before procurement. Confirm that the 1.8V supply voltage aligns with your system's power rails. Ensure the 4-SMD no-lead package footprint matches your PCB layout constraints to guarantee proper assembly and electrical connectivity.

Oscillators Selection Notes

Select this component when a precise 40.4166 MHz reference is required for LVCMOS-compatible circuits. Consider the 1.8V operating voltage and standby feature if power efficiency is a priority. The small 2.0x1.6mm package makes it suitable for space-constrained designs requiring reliable clock signals without excessive board area consumption.

Oscillators Part Context

This part belongs to the 18QHTF21 series from Mercury Electronics, which offers various frequencies within a standardized 4-SMD no-lead form factor. The series supports LVCMOS outputs and 1.8V operation, providing consistent performance across different frequency options like 51.2 MHz or 21 MHz while maintaining identical physical and electrical characteristics.

Oscillators Replacement Considerations

Direct substitutes include other 18QHTF21 variants such as 18QHTF21-51.200-PD or 18QHTF21-21.000-PD, provided the frequency difference is acceptable. Cross-manufacturer replacements require matching LVCMOS logic, 1.8V supply, and 4-SMD no-lead package dimensions to ensure pinout and thermal compatibility.