18QHTF21-28.63708-PD

Oscillators Overview

The 18QHTF21-28.63708-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 28.63708 MHz and utilizes LVCMOS output logic. The device is powered by a 1.8V supply voltage and features a Standby (Power Down) control function. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0mm x 1.6mm.

Oscillators Feature Summary

• Supports low-voltage operation at 1.8V for energy-efficient applications
• Includes standby mode capability to reduce power consumption when inactive
• Provides precise timing via LVCMOS output signal integrity

Oscillators Applications

• Precision timing circuits in electronic devices
• Embedded systems requiring stable clock sources
• Portable electronics utilizing low-power components

Oscillators Procurement Notes

Verify the specific frequency suffix matches the required 28.63708 MHz specification. Confirm that the 1.8V operating voltage aligns with the target circuit design. Ensure the 4-SMD no-lead package footprint is compatible with the PCB layout. Check for any specific RoHS or environmental compliance requirements relevant to the project.

Oscillators Selection Notes

Select this component when a small form factor is critical due to its 2.0x1.6mm size. Choose it for designs requiring active power-down functionality to extend battery life. Consider it for applications needing standard LVCMOS compatibility without additional level shifting. Validate thermal performance within the specified operating temperature range.

Oscillators Part Context

This part belongs to the 18QHTF21 series from Mercury Electronics, which specializes in quartz crystals and oscillators. The manufacturer is a Taiwan-based supplier established in 1973, known for producing frequency control products including TCXOs and VCTCXOs. This series represents their standard XO offerings in a miniaturized surface-mount package.

Oscillators Replacement Considerations

Direct substitutes include other 28.63708 MHz LVCMOS oscillators in 4-SMD packages with 1.8V operation. Verify pinout compatibility and electrical parameters such as load capacitance and drive strength before substitution.