18QHTF21-31.660-PD

Oscillators Overview

The 18QHTF21-31.660-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 31.66 MHz and utilizes LVCMOS output logic levels. The device functions with a supply voltage of 1.8V and includes a standby or power-down control feature for energy management. It is housed in a compact 4-SMD, no-lead package with dimensions of 2.0 x 1.6 mm. This component is designed for applications requiring precise timing signals within low-voltage digital systems.

Oscillators Feature Summary

• Supports LVCMOS output logic for direct interface with digital circuits
• Includes enable/disable functionality via standby control pin
• Compact surface-mount design suitable for space-constrained layouts

Oscillators Applications

• Digital signal processing systems
• Communication equipment clock sources
• Microcontroller system timing references

Oscillators Procurement Notes

Verify the specific ordering suffix to ensure compatibility with required voltage and output types. Confirm package dimensions against PCB footprint requirements. Check datasheet for operating temperature range specifications relevant to the target environment. Ensure supply voltage matches the 1.8V requirement before integration.

Oscillators Selection Notes

Select this model when a 31.66 MHz reference is required for LVCMOS-compatible logic families. Consider the 1.8V supply constraint and standby capability for power-sensitive designs. Evaluate the small 2.0x1.6 mm footprint against available board space. Compare performance against other Mercury oscillators if different frequencies are needed.

Oscillators Part Context

This part belongs to the 18QHTF21 series of standard crystal oscillators from Mercury Electronics. The series offers various frequencies while maintaining consistent electrical characteristics and packaging. Similar models include variants like 18QHTF21-51.200-PD and 18QHTF21-18.1059-PD, differing primarily in output frequency but sharing the same physical and logical interface standards.

Oscillators Replacement Considerations

Direct substitutes may include other Mercury Electronics parts within the 18QHTF21 series that match the 31.66 MHz frequency. Verify equivalent supply voltage and output logic compatibility before substitution. Cross-reference with distributor databases for pin-compatible alternatives if original stock is unavailable.