18QHTF21-11.94725-OE

Overview

The 18QHTF21-11.94725-OE is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 11.94725 MHz and utilizes LVCMOS output logic levels. The device is designed for low voltage applications, specifically requiring a 1.8V supply voltage. It features an enable and disable control function to manage power consumption. The component is housed in a compact 4-SMD, No Lead package, suitable for surface mount assembly in space-constrained electronic designs.

Feature Summary

• Supports enable and disable functionality for power management
• Utilizes LVCMOS output interface
• Operates on a 1.8V supply voltage

Applications

• Portable consumer electronics
• Communication modules
• Embedded systems with low power requirements

Procurement Notes

Verify the exact frequency tolerance and load capacitance specifications against your circuit design requirements before procurement. Ensure that the 1.8V supply rail is stable and within the operational limits defined in the official datasheet. Confirm that the PCB footprint matches the 4-SMD No Lead package dimensions provided by Mercury Electronics to prevent assembly issues.

Selection Notes

Select this component when a precise 11.94725 MHz clock signal is required for LVCMOS-compatible circuits. The choice is driven by the need for low voltage operation at 1.8V and the integration of enable/disable controls. Consider the small form factor of the 4-SMD package if board space is limited. Ensure the application environment supports the standard operating temperature range specified for this series.

Part Context

This part belongs to the 18QHTF21 series of crystal oscillators from Mercury Electronics. The series includes various frequencies such as 21.2 MHz and 30.0075 MHz, all sharing similar package and voltage characteristics. The suffix OE indicates specific ordering or configuration details defined by the manufacturer. This family is designed for general-purpose clocking applications requiring reliable frequency stability.

Replacement Considerations

Direct substitutes must match the 11.94725 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD No Lead package. Verify pinout compatibility and electrical parameters before swapping. Generic replacements may differ in phase noise or startup time.