LFXTAL010043

Overview

The LFXTAL010043 is a quartz crystal manufactured by IQD Frequency Products, operating at a nominal frequency of 12 MHz. It features a frequency tolerance of ±30 ppm and a frequency stability of ±50 ppm. The component has a load capacitance of 30 pF and an equivalent series resistance (ESR) of 40 Ohms. It utilizes the HC-49/US package style with radial termination. The device is designed for surface mount installation and operates within a temperature range of -10°C to +60°C.

Feature Summary

• Hermetically sealed in an inert atmosphere with glass-to-metal seals on leads
• Resistance welded construction for enhanced reliability
• Standard industry leaded package design

Applications

• Microprocessor clock circuits
• Communication equipment timing references
• Digital signal processing systems

Procurement Notes

Verify the specific package variant against official datasheets, as suffixes may indicate different mounting styles or tolerances. Confirm that the required frequency stability and load capacitance match the target circuit design parameters before procurement. Ensure the operating temperature range aligns with the application environment requirements.

Selection Notes

Select this component when a standard 12 MHz reference is required with moderate stability specifications. The HC-49/US package offers a balance between size and mechanical robustness. Consider the 40 Ohm ESR value for oscillator circuit compatibility. Verify that the ±30 ppm initial tolerance meets the system's frequency accuracy needs.

Part Context

This part belongs to the HC49/4HSMX series from IQD Frequency Products. It represents a standard quartz crystal solution for general-purpose timing applications. The series is known for providing reliable performance in consumer and industrial electronics where precise frequency generation is essential for system synchronization.

Replacement Considerations

Direct substitutes must maintain the 12 MHz frequency, 30 pF load capacitance, and HC-49/US package dimensions. Verify that alternative components offer comparable ±30 ppm tolerance and similar ESR values to ensure oscillator circuit stability without redesign.