18QHTF21-12.980-OE

Overview

The 18QHTF21-12.980-OE is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 12.98 MHz and utilizes LVCMOS output logic. The device is designed for a supply voltage of 1.8V and features 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

• Supports LVCMOS output logic for digital interface compatibility
• Includes Enable/Disable functionality for active power control
• Utilizes a leadless SMD package for automated assembly

Applications

• Digital signal processing clock sources
• Embedded system timing references
• Communication equipment synchronization

Procurement Notes

Verify the specific suffix OE against the manufacturer's current datasheet to confirm pinout and electrical tolerances. Ensure the 1.8V supply requirement aligns with the target circuit design. Confirm the 4-SMD no-lead footprint matches the PCB layout specifications before finalizing procurement orders.

Selection Notes

Select this component when a low-voltage 1.8V operation is required alongside standard LVCMOS signaling. The enable/disable feature makes it suitable for battery-powered or power-sensitive designs. Verify that the 12.98 MHz frequency meets the system clock requirements and that the small form factor fits the available board space constraints.

Part Context

This part belongs to the 18QHTF series of quartz crystal oscillators from Mercury Electronics. The series typically offers various frequencies and supply voltages. The 'OE' suffix likely denotes specific packaging or operational characteristics defined by the manufacturer. This model represents a standard XO variant within their portfolio of frequency control products.

Replacement Considerations

Direct substitutes must match the 12.98 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD no-lead package. Check equivalent parts from other manufacturers ensuring identical pin configurations and electrical parameters. Verify thermal and environmental specifications if operating conditions differ from standard ranges.