18QHTF21-41.943-PD

Oscillators Overview

The 18QHTF21-41.943-PD is a 41.943 MHz crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It utilizes LVCMOS output logic and operates at a supply voltage of 1.8V. The device features a Standby (Power Down) control function for power management. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0 x 1.6 mm.

Oscillators Feature Summary

• LVCMOS output interface
• Standby (Power Down) control capability
• Compact 4-SMD No Lead package

Oscillators Applications

• Portable electronic devices
• Communication equipment
• Embedded systems requiring precise timing

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's power rails. Ensure the 4-SMD No Lead footprint matches the PCB layout specifications to guarantee proper soldering and mechanical stability during assembly.

Oscillators Selection Notes

Select this component when a low-voltage 1.8V operation is required alongside a small form factor. The Standby feature makes it suitable for battery-powered applications where power conservation is critical. Compare performance metrics such as phase noise and jitter against other oscillators in the same series to ensure compatibility with high-speed digital interfaces.

Oscillators Part Context

This part belongs to the QHTF21 series of surface-mount crystal oscillators from Mercury Electronics. The series is characterized by its small size and low power consumption, making it ideal for space-constrained designs. The 'PD' suffix indicates the inclusion of a Power Down pin for enhanced energy efficiency compared to standard continuous-operation models.

Oscillators Replacement Considerations

Direct replacements within the same series include 18QHTF21-51.200-PD, 18QHTF21-30.300-PD, and 18QHTF21-68.665-PD, provided the frequency difference is acceptable for the application. Verify electrical compatibility and pinout consistency before substitution.