18QHTF21-9.912-PD

Overview

The 18QHTF21-9.912-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 9.912 MHz and utilizes LVCMOS output logic. The device functions with a supply voltage of 1.8V and features a standby power-down mode for energy efficiency. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0x1.6 mm.

Feature Summary

• Supports low-voltage operation at 1.8V
• Includes standby power-down functionality
• Utilizes LVCMOS output signal compatibility

Applications

• Battery-powered portable devices
• General electronic timing circuits
• Embedded system clock generation

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 guarantee proper assembly and electrical connectivity.

Selection Notes

Select this component when a precise 9.912 MHz reference is required for low-power applications. Consider the LVCMOS interface for direct digital logic integration. Evaluate the 1.8V operating range against available power supplies. The small form factor suits space-constrained designs requiring reliable quartz-based timing stability.

Part Context

This part belongs to the 18QHTF21 series from Mercury Electronics, which specializes in frequency control products including quartz crystals and oscillators. The manufacturer has been active in the industry since 1973, providing timing solutions such as TCXOs and VCTCXOs. This specific model represents a standard XO variant within their portfolio.

Replacement Considerations

No public confirmed substitute part numbers are available in the provided documentation.