18QHTF21-18.579456-PD

Oscillators Overview

The 18QHTF21-18.579456-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronic Ind. Co., Ltd. It operates at a nominal frequency of 18.579456 MHz and utilizes LVCMOS output logic levels. 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 2.0x1.6 mm.

Oscillators Feature Summary

• Integrates LVCMOS output interface for digital circuit compatibility
• Supports standby mode to reduce power consumption during idle periods
• Utilizes surface-mount SMD package design for automated assembly

Oscillators Applications

• Digital signal processing systems requiring precise clock timing
• Communication equipment utilizing standard frequency references
• Embedded control units with low-voltage power constraints

Oscillators Procurement Notes

Verify the specific operating voltage and load capacitance requirements against the target circuit design before procurement. Confirm that the 1.8V supply specification aligns with the system power rails. Ensure the 4-SMD footprint matches the PCB layout guidelines provided in the manufacturer datasheet to guarantee proper soldering and mechanical stability.

Oscillators Selection Notes

Select this component when a fixed frequency reference near 18.58 MHz is required with low power consumption capabilities. Consider the LVCMOS output swing limits relative to the receiving input thresholds. Evaluate the thermal performance and size constraints of the 2.0x1.6 mm package within the available board space compared to larger oscillator formats.

Oscillators Part Context

This part belongs to the Mercury Electronics XO series, which provides stable frequency generation solutions. The manufacturer has established expertise in quartz crystal production since 1973. This specific model represents a standard frequency option within their portfolio of surface-mount oscillators designed for consumer and industrial electronics.

Oscillators Replacement Considerations

Direct substitutes include other 18.579456 MHz LVCMOS oscillators in compatible packages. Verify pinout compatibility and electrical specifications such as supply voltage and output drive strength before substitution.