2890-38K

Fixed Inductors Overview

The Delevan 2890-38K is a fixed RF inductor from the 2890/R series, designed for axial through-hole PCB mounting. It features an unshielded molded construction with a nominal inductance of 56 µH and a tolerance of ±10%. The component supports a maximum DC current of 410 mA and exhibits a maximum DC resistance of 1.15 Ohms. Key electrical parameters include a minimum Q factor of 65 at 2.5 MHz and a self-residential frequency of 14 MHz. Physical dimensions are 7.11 mm in diameter by 22.86 mm in length.

Fixed Inductors Feature Summary

• Axial leaded design for standard printed circuit board integration
• Molded unshielded coil structure for radio frequency applications
• Robust thermal performance suitable for industrial environments

Fixed Inductors Applications

• Radio frequency signal processing circuits
• Choke applications in RF power supplies
• Industrial electronic control systems

Fixed Inductors Procurement Notes

Verify RoHS compliance status prior to procurement, as documentation indicates non-compliance. Confirm manufacturing source, as API Delevan assets may involve different entities. Validate specific batch testing requirements against project specifications. Ensure axial lead compatibility with target PCB footprint. Review datasheet revisions for any parameter updates.

Fixed Inductors Selection Notes

Select this component when a 56 µH inductance value is required for RF choke duties. The unshielded design necessitates careful layout planning to prevent magnetic interference with adjacent components. Verify that the 410 mA current rating meets the operational load requirements. Consider the physical size constraints relative to the available PCB area.

Fixed Inductors Part Context

This part belongs to the Delevan 2890/R series of molded RF inductors. Similar variants within the series include the 2890-30K and 2890-34K, which offer different inductance values such as 27 µH and 39 µH respectively. These components share common physical dimensions and mounting styles but vary in electrical characteristics like DC resistance and self-resonant frequency.

Fixed Inductors Replacement Considerations

The 2890R-38K is listed as an alias or variant with identical specifications. Cross-reference with other 56 µH axial inductors if supply chain constraints exist, ensuring equivalent current ratings and physical dimensions are maintained.