18QHTF21-12.504-OE

Overview

The 18QHTF21-12.504-OE is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a frequency of 12.504 MHz and utilizes LVCMOS output logic. The device functions on a 1.8V supply voltage and includes an enable/disable control feature for power management. It is housed in a compact 4-SMD, No Lead package with dimensions of 2.0 x 1.6 mm.

Feature Summary

• Supports LVCMOS output logic for digital interface compatibility
• Features integrated enable and disable control functionality
• Designed for low-voltage operation at 1.8V

Applications

• General clock signal generation in electronic circuits
• Data communication interfaces requiring precise timing
• Embedded systems utilizing low-voltage logic families

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 package footprint matches your PCB layout constraints to guarantee proper soldering and mechanical stability during assembly.

Selection Notes

Select this component when a 12.504 MHz reference clock is required for LVCMOS-compatible devices. Consider the 1.8V operating voltage as a primary constraint for power-sensitive designs. Evaluate the small 2.0x1.6 mm form factor if space optimization is critical. Verify that the enable/disable pin requirement fits your power management strategy.

Part Context

This model belongs to the 18QHTF21 series from Mercury Electronics, which specializes in frequency control products. The series typically offers various frequencies within a standardized low-profile SMD package. The 'OE' suffix indicates the inclusion of an enable/disable pin, distinguishing it from basic oscillator variants without control features.

Replacement Considerations

Direct replacements must match the 12.504 MHz frequency, 1.8V supply, LVCMOS output, and 4-SMD 2.0x1.6mm package. Verify pinout compatibility for the enable function. Cross-reference with other manufacturers offering identical electrical specifications and physical dimensions to ensure interchangeability.