DB4-393

Fixed Inductors Overview

The DB4-393 is a radial lead high current power line choke manufactured by Gowanda Electronics. It features an unshielded wirewound inductor design with a nominal inductance of 390 µH and a maximum DC resistance of 70 mΩ. The component supports a rated current of 9 A, based on a 35°C temperature rise. It operates within a temperature range of -55°C to +125°C and is tested for inductance at 1 kHz.

Fixed Inductors Feature Summary

• Radial lead configuration for through-hole mounting
• High current capability suitable for demanding applications
• Unshielded wirewound construction

Fixed Inductors Applications

• Power line filtering
• High current circuit protection
• Industrial electronic systems

Fixed Inductors Procurement Notes

Verify the specific suffix (e.g., LF) against official Gowanda documentation to confirm RoHS compliance status. Ensure the ordering part number matches the required lead type and termination specifications. Confirm that the 9 A rating aligns with your system's thermal management capabilities, as this value is derived from a 35°C temperature rise condition.

Fixed Inductors Selection Notes

Select this component when a high-current radial choke is required for power line applications. Consider the unshielded nature of the design regarding potential electromagnetic interference in sensitive environments. Verify that the 390 µH inductance meets the specific filtering requirements of the target circuit at the 1 kHz test frequency.

Fixed Inductors Part Context

Gowanda Electronics specializes in high-performance magnetic components for aerospace, defense, and medical sectors. The DB4 series represents their radial lead power line chokes, designed for reliability in critical applications. The company maintains ISO 9001 and AS9100 certifications, ensuring quality control for these industrial-grade magnetics.

Fixed Inductors Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material. Consult Gowanda Electronics directly for qualified alternatives or cross-reference options that match the 390 µH inductance, 9 A current rating, and radial package constraints.