RL-1256-1-39

Fixed Inductors Overview

The RL-1256-1-39 is a fixed wirewound inductor manufactured by Renco Electronics, Inc. It features an inductance of 39 µH and a maximum DC resistance of 46 mΩ. The component supports a nominal current of 4 A with a saturation current rating of 11.8 A. Designed for through-hole mounting, it utilizes a radial vertical cylinder package configuration. The device operates within a temperature range of -40°C to 130°C and is classified as an unshielded power line choke.

Fixed Inductors Feature Summary

• Radial leaded construction suitable for through-hole mounting applications
• Unshielded wirewound design for power line filtering
• High saturation current capability relative to nominal operating current

Fixed Inductors Applications

• Power line chokes
• General purpose filtering circuits
• Industrial electronic equipment requiring robust inductive components

Fixed Inductors Procurement Notes

Verify the specific ordering suffix against official Renco documentation to ensure correct tolerance and packaging specifications. Confirm that the required saturation and RMS current ratings align with the target circuit design before procurement. Check manufacturer lead times as they may vary significantly from standard distributor availability. Ensure compatibility with automated or manual insertion processes given the radial vertical form factor.

Fixed Inductors Selection Notes

Select this component when a 39 µH inductance value is required with high current handling capabilities up to 11.8 A saturation. The unshielded nature necessitates careful layout planning to minimize electromagnetic interference coupling with adjacent traces. Verify that the 46 mΩ maximum DC resistance meets the efficiency requirements of the power stage. Consider the thermal performance at the upper limit of the 130°C operating range under continuous load conditions.

Fixed Inductors Part Context

This part belongs to the RL-1256 series of radial leaded power line chokes produced by Renco Electronics. The series offers various inductance values tailored for different power filtering needs while maintaining consistent physical dimensions and mounting styles. The RL-1256 designation indicates a specific family of wirewound inductors designed for durability in demanding environments.

Fixed Inductors Replacement Considerations

Consult official cross-reference data for direct substitutes. Ensure any replacement maintains the 39 µH inductance, 4 A nominal current, and 11.8 A saturation current specifications. Verify mechanical compatibility regarding the radial vertical cylinder package and pin spacing.