18QHTF21-41.665-OE

Oscillators Overview

The 18QHTF21-41.665-OE is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co., Ltd. It operates at a frequency of 41.665 MHz and utilizes LVCMOS output logic. The device is designed for surface mount applications, featuring a compact 4-SMD, No Lead package configuration. It supports a supply voltage of 1.8V and includes an enable/disable control function. The component is engineered to operate within a temperature range of -40°C to 85°C, ensuring reliability in various electronic systems requiring precise clock signals.

Oscillators Feature Summary

• Integrates LVCMOS output logic for standard digital interface compatibility
• Features an enable/disable pin for power management control
• Utilizes a compact 4-SMD no-lead surface mount package design

Oscillators Applications

• General purpose clock signal generation in embedded systems
• Timing reference for digital communication interfaces
• Clock source for microcontroller and processor circuits

Oscillators Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against the target circuit design before procurement. Confirm that the 1.8V supply voltage aligns with the system power rails. Ensure the PCB footprint matches the 4-SMD no-lead package dimensions specified in the official datasheet to prevent mounting issues during assembly.

Oscillators Selection Notes

Select this component when a low-profile surface mount oscillator is required for space-constrained designs. The 1.8V operating voltage makes it suitable for modern low-power digital logic families. Consider the enable/disable feature if dynamic power saving is necessary. Verify that the 41.665 MHz frequency meets the system timing requirements without additional frequency multiplication or division stages.

Oscillators Part Context

This part belongs to the QHTF series of crystal oscillators from Mercury Electronics. The series offers various frequencies and voltage options in a standardized small outline package. The 18QHTF21 variant specifically denotes the 1.8V supply version with LVCMOS outputs. This family is designed for high-volume consumer and industrial electronics applications requiring stable clock sources.

Oscillators Replacement Considerations

Direct substitutes include other 41.665 MHz LVCMOS oscillators in 4-SMD packages from manufacturers such as Epson, NDK, or SiTime. Ensure replacement parts match the 1.8V supply voltage and pinout configuration. Verify that the replacement component meets the same operating temperature range and electrical specifications.