18QHTF21-12.6523-OE

Overview

The 18QHTF21-12.6523-OE is a standard crystal oscillator (XO) manufactured by Mercury Electronic Ind. Co., Ltd. It operates at a frequency of 12.6523 MHz and utilizes LVCMOS output logic. The device supports a supply voltage of 1.8V and features an enable/disable control function. It is housed in a compact 4-SMD, No Lead package, designed 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

• General clock signal generation
• Digital circuit timing references
• Embedded system clock sources

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against the target application design before procurement. Confirm that the 1.8V supply voltage aligns with the system power architecture. Ensure the 4-SMD footprint matches the PCB layout constraints. Cross-reference the datasheet for operating temperature range specifications to guarantee reliability under expected environmental conditions.

Selection Notes

Select this component when a low-voltage 1.8V operation is required alongside LVCMOS signaling standards. The enable/disable feature offers power management flexibility for systems requiring periodic clock gating. The small form factor suits space-constrained designs. Verify that the 12.6523 MHz frequency meets the specific data rate or processing clock needs of the target electronic circuit.

Part Context

This part belongs to the Mercury Electronics 18QHTF21 series of standard crystal oscillators. The series typically includes various frequencies within the SMD package family. Mercury Electronic Ind. Co., Ltd. specializes in quartz crystals and timing components, providing standardized solutions for frequency control applications across consumer and industrial electronics sectors.

Replacement Considerations

Direct substitutes include other 18QHTF21 series variants from Mercury Electronics with identical pinout and electrical characteristics but different frequencies. Equivalent parts from other manufacturers must match the 1.8V supply, LVCMOS output, and 4-SMD package dimensions to ensure mechanical and electrical compatibility.