18QHTF21-41.9979-PD

Oscillators Overview

The 18QHTF21-41.9979-PD is a standard crystal oscillator manufactured by Mercury Electronic Ind. Co. Ltd. It operates at a frequency of 41.9979 MHz and utilizes LVCMOS output logic. The device supports a supply voltage of 1.8V and includes a standby or power-down function for energy management. 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 and power-down functionality
• Utilizes LVCMOS output logic levels

Oscillators Applications

• Portable electronic devices requiring low power consumption
• Communication equipment utilizing standard clock signals
• Embedded systems needing compact timing solutions

Oscillators Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your circuit design 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. Check for any specific operating temperature range limitations defined in the official datasheet to guarantee reliability under your environmental conditions.

Oscillators Selection Notes

Select this component when a precise 41.9979 MHz clock signal is required in space-constrained applications. The choice is driven by the need for low voltage operation and integrated power management features. Consider the small 2.0x1.6mm form factor if board real estate is limited. Verify compatibility with LVCMOS interfaces in your target digital logic family.

Oscillators Part Context

This part belongs to the 18QHTF21 series of surface-mount oscillators from Mercury Electronics. The series offers various frequencies within a standardized small outline package. The suffix PD indicates the inclusion of power-down capabilities. This model specifically targets applications demanding high stability in a minimal footprint.

Oscillators Replacement Considerations

Direct substitutes include other 18QHTF21 variants with identical pinouts and electrical characteristics but different frequencies, such as 18QHTF21-51.200-PD or 18QHTF21-50.000-PD, provided the frequency difference is acceptable for the application.