18QHTF21-121.500-OE

Overview

The 18QHTF21-121.500-OE is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 121.5 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, suitable for surface-mount applications requiring precise timing signals.

Feature Summary

• Supports LVCMOS output logic for digital interface compatibility
• Includes hardware enable/disable functionality for power management
• Utilizes a leadless SMD package for automated assembly

Applications

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

Procurement Notes

Verify the specific suffix OE against official Mercury Electronics documentation to confirm the enable/disable feature set. Ensure the 1.8V supply requirement aligns with target circuit design. Confirm the 4-SMD no-lead footprint matches PCB layout constraints before finalizing procurement orders.

Selection Notes

Select this component when a 121.5 MHz reference with low-voltage operation is required. The enable pin allows for dynamic power control in battery-operated devices. Compare package dimensions against available board space to ensure mechanical fit within the target electronic assembly.

Part Context

This part belongs to the 18QHTF21 series of quartz crystal oscillators from Mercury Electronics. The series typically offers various frequencies and voltage levels. The -OE suffix distinguishes it from other variants like -PD (Power Down) or standard outputs within the same physical package family.

Replacement Considerations

The 18QHTF21-121.500-PD is a related variant offering standby functionality instead of simple enable/disable. Verify if power-down requirements necessitate switching to the PD suffix. Other frequencies in the 18QHTF21 series may share the same package but differ electrically.