LFXTAL003185BULK

Overview

The LFXTAL003185BULK is a parallel fundamental quartz crystal manufactured by IQD Frequency Products. It operates at a nominal frequency of 20 MHz with a frequency tolerance of ±50 ppm and stability of ±50 ppm. The component features a load capacitance of 30 pF, maximum drive level of 0.5 mW, and series resistance of 130 Ω. Designed for surface mount installation in an HC49/4HSMX package, it functions within a temperature range of -20°C to +70°C.

Feature Summary

• Hermetically sealed construction using glass-to-metal seals on leads
• Resistance welded assembly mounted onto a plastic former
• Gull wing lead configuration for surface mount compatibility

Applications

• General purpose timing circuits requiring 20 MHz reference
• Industrial equipment operating within standard commercial temperature ranges
• Consumer electronics utilizing surface mount assembly processes

Procurement Notes

Verify the specific package variant against the datasheet, as the bulk suffix may correspond to different physical configurations such as SMD or through-hole depending on the revision. Confirm RoHS compliance status and ensure the driving circuit supports the specified 0.5 mW maximum drive level to prevent frequency pulling or damage. Validate that the 30 pF load capacitance matches the oscillator circuit design requirements.

Selection Notes

Select this component when a 20 MHz fundamental frequency is required with moderate stability specifications. The HC49/4HSMX form factor provides a balance between size and robustness for general applications. Ensure the application environment stays within the -20°C to +70°C operational range and that the circuit impedance aligns with the 30 pF load capacitance specification.

Part Context

This part belongs to the LFXTAL series of industry-standard quartz crystals from IQD Frequency Products. The series offers various frequencies and packages, ranging from traditional through-hole units to modern surface mount options. This specific model utilizes a plastic former with gull wing leads, bridging the gap between legacy HC-49 designs and contemporary PCB mounting techniques.

Replacement Considerations

Cross-reference with other 20 MHz HC49/SMD crystals from manufacturers like Epson or Murata. Verify pinout compatibility and electrical parameters including ESR and shunt capacitance before substitution.