18QHTF21-74.2129-OE

Overview

The 18QHTF21-74.2129-OE is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a nominal frequency of 74.2129 MHz and utilizes LVCMOS output logic. The device is designed for a supply voltage of 1.8V and includes enable/disable functionality. It is housed in a compact 4-SMD, no lead package suitable for surface-mount applications.

Feature Summary

• Supports LVCMOS output logic for digital interfacing
• Includes enable and disable control capabilities
• Operates on a 1.8V supply voltage

Applications

• Digital signal processing systems
• Communication equipment clocking
• Embedded system timing references

Procurement Notes

Verify the exact part number against official Mercury Electronics documentation to ensure compatibility with the required 74.2129 MHz frequency specification. Confirm that the 1.8V supply voltage and LVCMOS output levels align with the target circuit design requirements before procurement.

Selection Notes

Select this component when a precise 74.2129 MHz clock source is required for low-voltage digital circuits. Ensure the application supports the 1.8V operating range and requires the specific 4-SMD no-lead form factor for board space constraints.

Part Context

This model belongs to the 18QHTF21 series of standard oscillators from Mercury Electronics. The series typically offers various frequency options within a standardized small outline package, providing reliable timing solutions for consumer and industrial electronics requiring stable clock signals.

Replacement Considerations

Direct substitutes must match the 74.2129 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD no-lead package dimensions. Verify pinout compatibility and electrical specifications with alternative manufacturers if cross-referencing is necessary.