18QHTF21-12.5829-OE

Overview

The 18QHTF21-12.5829-OE is a standard crystal oscillator (XO) manufactured by Mercury Electronics Ind. Co. Ltd. It operates at a fixed frequency of 12.5829 MHz and utilizes LVCMOS output logic. The device requires a 1.8V supply voltage and features an enable/disable control function for power management. 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
• Enable/Disable pin functionality for power optimization
• Compact 4-SMD No Lead surface-mount package design

Applications

• General purpose clock signal generation
• Digital circuit timing reference
• Embedded system clock sources

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against the target application's specifications before procurement. Confirm that the 1.8V supply voltage aligns with the system power rails. Ensure the 4-SMD No Lead footprint matches the PCB layout constraints. Cross-reference the manufacturer datasheet for detailed electrical characteristics and reliability data to ensure compliance with project standards.

Selection Notes

Select this component when a stable 12.5829 MHz clock source is required for low-voltage digital circuits. The LVCMOS output ensures compatibility with standard logic families. Consider the enable/disable feature if power efficiency is a priority. The small form factor suits space-constrained designs. Verify thermal performance and operating temperature range suitability for the intended environment.

Part Context

This part belongs to the Mercury Electronics XO series, which provides standard oscillators for various timing applications. The company specializes in quartz-based frequency control products, including crystals, filters, and oscillators. The 18QHTF21 series represents their surface-mount oscillator offerings, designed for modern electronic devices requiring reliable clock signals.

Replacement Considerations

Direct substitutes must match the 12.5829 MHz frequency, LVCMOS output, 1.8V supply, and 4-SMD No Lead package. Check for equivalent enable/disable functionality. Verify pinout compatibility to ensure direct replacement without PCB modification. Consult manufacturer cross-reference lists for validated alternatives.