18QHTF21-7.470-PD

Overview

The 18QHTF21-7.470-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 7.47 MHz and utilizes LVCMOS output logic levels. The device is designed for operation with a supply voltage of 1.8V and includes a standby or power-down function to manage power consumption during idle periods. It is housed in a compact 4-SMD, no lead package, suitable for surface-mount assembly on printed circuit boards.

Feature Summary

• Integrates LVCMOS output interface for digital signal compatibility
• Supports standby mode for reduced power consumption
• Utilizes low-profile surface-mount packaging

Applications

• General-purpose clock generation for embedded systems
• Timing reference for microcontroller units
• Synchronization in consumer electronic devices

Procurement Notes

Verify the specific suffix (PD) against official Mercury Electronics documentation to confirm pinout and electrical characteristics. Ensure the operating temperature range meets system requirements. Cross-reference the part number with authorized distributors to avoid counterfeit components. Confirm that the 1.8V supply voltage aligns with the target circuit design before procurement.

Selection Notes

Select this component when a stable 7.47 MHz clock source is required for low-voltage digital circuits. The LVCMOS output ensures direct interfacing with standard logic families without additional level shifting. Consider the 1.8V supply constraint and the availability of standby functionality for power-sensitive applications. Evaluate the 4-SMD footprint constraints against the PCB layout requirements.

Part Context

This oscillator belongs to the 18QHTF21 series from Mercury Electronics, which focuses on small-form-factor timing solutions. The series typically offers various frequencies and voltage options within a standardized package. Mercury Electronics is a recognized manufacturer of quartz crystals and oscillators, providing frequency control products for diverse industrial and commercial applications.

Replacement Considerations

Direct substitutes include other 18QHTF21 series variants with matching frequency and voltage, such as the 18QHTF21-8.000-PD or 18QHTF21-51.200-PD, provided the frequency difference is acceptable. Verify pin compatibility and electrical specifications before substitution.