18QHTF21-31.500-PD

Oscillators Overview

The 18QHTF21-31.500-PD is a 31.5 MHz crystal oscillator (XO) 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 function for energy efficiency. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0x1.6 mm.

Oscillators Feature Summary

• LVCMOS output interface
• Standby power-down capability
• Compact surface-mount form factor

Oscillators Applications

• General digital clock generation
• Embedded system timing
• Consumer electronics circuits

Oscillators Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your circuit design before ordering. Confirm that the 1.8V supply voltage aligns with your system's power rails. Ensure the 4-SMD no-lead package footprint matches your PCB layout constraints to avoid assembly issues.

Oscillators Selection Notes

Select this component when a low-voltage 1.8V operation is required alongside a standard LVCMOS interface. The small 2.0x1.6 mm package makes it suitable for space-constrained designs. Consider the standby feature if power management during idle states is a priority for the application.

Oscillators Part Context

This part belongs to the 18QHTF21 series from Mercury Electronics, which focuses on low-profile oscillators. The series typically offers various frequencies within the same physical footprint, allowing for design flexibility while maintaining consistent board space utilization across different product variants.

Oscillators Replacement Considerations

Direct substitutes include other 31.5 MHz LVCMOS oscillators in 4-SMD 2.0x1.6mm packages operating at 1.8V. Verify pin compatibility and electrical specifications such as jitter and phase noise before swapping manufacturers.