LDFL020302LNQH0E

Common Mode Chokes Overview

The LDFL020302LNQH0E is a nanocrystalline common mode filter choke manufactured by Chemi-Con, designed for high-current applications. It features a vertical radial mount configuration with a shielded core structure. Key electrical specifications include an inductance of 3 mH measured at 100 kHz and a maximum DC current rating of 20 A. The component supports a rated voltage of 500 VDC and operates within a temperature range of -40°C to +130°C. Its physical dimensions are 20 mm in length, 30 mm in width, and 20 mm in height. The unit is certified to the AEC-Q200 automotive reliability standard.

Common Mode Chokes Feature Summary

• Utilizes nanocrystalline alloy core material for superior magnetic performance and compact size
• Provides effective common mode noise suppression through shielded construction
• Engineered for high saturation current capabilities suitable for power line filtering

Common Mode Chokes Applications

• Automotive power supply input filtering
• Industrial motor drive EMI suppression
• High-power converter common mode noise reduction

Common Mode Chokes Procurement Notes

Verify the complete part number including suffixes against official Chemi-Con documentation to ensure correct pinout and tolerance specifications. Confirm that the required operating temperature range aligns with the component's -40°C to +130°C rating. Check for any specific packaging requirements or reel options if automated assembly is planned. Ensure compatibility with the target PCB footprint dimensions of 20mm x 30mm.

Common Mode Chokes Selection Notes

Select this component when high current handling up to 20A is required alongside significant common mode attenuation. The nanocrystalline core offers better performance than traditional ferrite cores in high-frequency ranges. Consider the vertical mounting style for board space optimization. Verify that the 500VDC rating exceeds the system's peak voltage requirements. Evaluate thermal management needs given the high current density.

Common Mode Chokes Part Context

This component belongs to the FL series of nanocrystalline common mode chokes from Chemi-Con. These components are engineered as surface-mount or through-hole alternatives to traditional bulky inductors. The series emphasizes downsizing while maintaining high reliability standards. The FL series is widely recognized in automotive and industrial sectors for its robustness and efficiency in noise suppression applications.

Common Mode Chokes Replacement Considerations

Consult official Chemi-Con substitution guides for direct equivalents. Verify that any alternative maintains the same nanocrystalline core technology and AEC-Q200 certification. Ensure dimensional compatibility with the existing 20x30x20mm footprint. Confirm that the replacement meets the 20A current and 3mH inductance specifications without compromising thermal performance.