18QHTF21-18.217187-PD

Oscillators Overview

The 18QHTF21-18.217187-PD is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 18.217187 MHz and utilizes LVCMOS output logic levels. The device is designed for a supply voltage of 1.8V and features a Standby (Power Down) control function to manage power consumption. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0x1.6 mm, suitable for surface-mount applications requiring precise timing signals.

Oscillators Feature Summary

• LVCMOS output interface for digital logic compatibility
• Integrated standby mode for power management
• Compact 4-SMD no-lead surface mount package

Oscillators Applications

• General purpose clock signal generation
• Embedded systems timing reference
• Consumer electronics mainboards

Oscillators Procurement Notes

Verify the exact frequency tolerance and load capacitance requirements against the specific application circuit design. Confirm that the 1.8V supply voltage aligns with the target system's power rails. Ensure the PCB footprint matches the 2.0x1.6 mm SMD package dimensions provided in the official datasheet to prevent assembly issues.

Oscillators Selection Notes

Select this component when a low-voltage 1.8V operation is required alongside a specific 18.217187 MHz frequency point. The choice depends on the need for a standard XO with standby capability rather than temperature-compensated or voltage-controlled variants. Evaluate the size constraints of the design against the 2.0x1.6 mm form factor.

Oscillators Part Context

This part belongs to the 18QHTF21 series from Mercury Electronics, which specializes in quartz crystal frequency control products. The series includes various frequencies and packages, with this specific model denoting the 18.217187 MHz variant. Mercury Electronics has a long history in Taiwan manufacturing quartz crystals and oscillators.

Oscillators Replacement Considerations

Check for other parts within the 18QHTF21 series sharing the same 1.8V LVCMOS specification and 4-SMD package. Verify if alternative manufacturers offer equivalent 18.217187 MHz oscillators with identical pinout and electrical characteristics.