18QHTF21-11.666667-OE

Overview

The 18QHTF21-11.666667-OE is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a nominal frequency of 11.666667 MHz and utilizes LVCMOS output logic. The device is designed for a supply voltage of 1.8V and features an enable/disable control function. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0mm x 1.6mm. The component supports an operating temperature range suitable for general electronic applications.

Feature Summary

• LVCMOS output logic for digital interface compatibility
• Enable/Disable control functionality for power management
• Compact 4-SMD No Lead surface mount package

Applications

• General clock signal generation in embedded systems
• Timing reference for microprocessors and microcontrollers
• Data communication interface synchronization

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against your circuit design before procurement. Confirm that the 1.8V supply voltage aligns with your system's power rails. Ensure the 4-SMD No Lead footprint matches your PCB layout specifications. Check for any specific environmental certifications required for your application region.

Selection Notes

Select this component when a precise 11.666667 MHz timing source is required with low voltage operation. The LVCMOS output is suitable for direct interfacing with digital logic families. Consider the small form factor for space-constrained designs. Verify that the enable/disable feature meets your power efficiency goals compared to always-on oscillators.

Part Context

This part belongs to the 18QHTF21 series of surface-mount crystal oscillators from Mercury Electronics. The series offers various frequencies and voltage options within a standardized 2.0x1.6mm package. These components are designed to replace through-hole crystals or larger oscillator packages in modern portable and industrial electronics requiring stable clock signals.

Replacement Considerations

Direct replacements must match the 11.666667 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD No Lead package. Verify pinout compatibility and electrical characteristics such as phase noise and jitter if critical. Cross-reference with other manufacturers offering similar SMD XO specifications.