LFXTAL029946

Overview

The LFXTAL029946 is a parallel fundamental quartz crystal manufactured by IQD Frequency Products. It operates at a nominal frequency of 4.332 MHz with a load capacitance of 20 pF. The component features a tolerance of 30 ppm and a frequency stability of 50 ppm. Designed for the HC49/4HSMX series, it utilizes an SMD/SMT installation style within a compact package measuring 11.4 mm in length, 4.9 mm in width, and 4.3 mm in height. The unit supports a drive level of 500 uW and maintains an equivalent series resistance of 60 Ohms. It functions reliably across a temperature range from -20°C to +70°C.

Feature Summary

• Provides stable oscillation at 4.332 MHz using parallel fundamental resonance
• Designed for surface mount integration via the HC49/4HSMX package format
• Maintains frequency stability within specified limits across industrial temperature ranges

Applications

• General purpose timing circuits requiring precise clock signals
• Embedded systems utilizing microcontrollers or processors
• Consumer electronic devices needing reliable frequency references

Procurement Notes

Verify the specific suffix and packaging configuration against current manufacturer documentation before ordering. Confirm that the HC49/4HSMX footprint matches your PCB design constraints. Ensure the operating environment remains within the specified -20°C to +70°C range to maintain performance guarantees. Cross-reference the part number with authorized distributors to avoid counterfeit components.

Selection Notes

Select this component when a 4.332 MHz reference is required for surface mount assembly. The 20 pF load capacitance must align with the oscillator circuit design specifications. Consider the 60 Ohm ESR and 500 uW drive level to ensure proper circuit matching. Verify that the physical dimensions fit within the available board space constraints.

Part Context

This crystal belongs to the HC49/4HSMX series, representing a standard form factor adapted for surface mounting. It serves as a passive frequency control element essential for generating accurate clock signals in digital logic applications. The product line emphasizes reliability and consistent performance across various commercial and industrial environments.

Replacement Considerations

Direct substitutes must match the 4.332 MHz frequency, 20 pF load capacitance, and HC49/4HSMX package dimensions. Verify equivalent electrical parameters including tolerance, stability, and ESR values.