18QHTF21-119.9308-OE

Overview

The 18QHTF21-119.9308-OE is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 119.9308 MHz and utilizes LVCMOS output logic. The device supports a supply voltage of 1.8V and includes an enable/disable control function for power management. It is housed in a compact 4-SMD, No Lead package, suitable for surface-mount applications requiring precise timing signals.

Feature Summary

• LVCMOS output logic for digital interface compatibility
• Integrated enable/disable control functionality
• Compact 4-SMD no-lead surface mount package

Applications

• Timing signal generation in electronic devices
• Clock source for digital circuits
• Embedded systems requiring precise frequency reference

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 enable/disable pin configuration matches your control logic. Check the datasheet for operating temperature range compliance to guarantee reliability under your intended environmental conditions.

Selection Notes

Select this component when a stable 119.9308 MHz clock signal is required with low-voltage operation. The LVCMOS output ensures compatibility with standard digital logic families. Consider the enable feature if power conservation during idle states is necessary. Verify that the small form factor fits within the available PCB space constraints for your specific application design.

Part Context

This part belongs to the 18QHTF21 series of crystal oscillators from Mercury Electronics. The series typically offers various frequencies and voltage options in a standardized small outline package. This specific model provides a high-frequency option optimized for modern high-speed digital applications requiring precise timing references.

Replacement Considerations

Direct substitutes must match the 119.9308 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD package. Verify electrical parameters such as phase noise and jitter specifications to ensure functional equivalence. Cross-reference with other manufacturers offering similar XO components if availability is an issue.