18QHTF21-4.42368-PD

Oscillators Overview

The 18QHTF21-4.42368-PD is a quartz crystal oscillator manufactured by Mercury Electronics Ind. Co., Ltd. It operates at a frequency of 4.42368 MHz with LVCMOS output logic. The device supports a supply voltage of 1.8V and includes a standby power-down function. It is housed in a 4-SMD, no lead package suitable for surface mount applications.

Oscillators Feature Summary

• LVCMOS output logic interface
• Integrated standby power-down capability
• Quartz-based frequency stability

Oscillators Applications

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

Oscillators Procurement Notes

Verify the specific ordering suffix to ensure compatibility with required voltage levels and packaging configurations. Confirm RoHS compliance status and moisture sensitivity classification prior to integration into production workflows to maintain supply chain reliability.

Oscillators Selection Notes

Select this component when a low-voltage 1.8V operation is required alongside standard LVCMOS signaling. The inclusion of a power-down feature makes it suitable for battery-constrained designs requiring active standby modes without sacrificing timing precision.

Oscillators Part Context

This part belongs to the QHTF series of surface-mount oscillators from Mercury Electronics. The series utilizes quartz technology to provide stable clock signals for various electronic applications, distinguishing itself through compact SMD packaging and integrated control features.

Oscillators Replacement Considerations

Direct substitutes include other 4.42368 MHz LVCMOS oscillators in 4-SMD packages from compatible manufacturers. Ensure pinout compatibility and voltage tolerance alignment when evaluating alternative sources.