1025R-04K

Fixed Inductors Overview

The Delevan 1025R-04K is a fixed, unshielded axial leaded inductor from the 1025R series. It features an iron core and molded construction with a nominal inductance of 220 nH. The component supports a maximum DC current of 1.04 A and has a maximum DC resistance of 140 mOhm. It exhibits a Q value of 60 at 79 MHz and a self-resonant frequency of 300 MHz. Designed for through-hole mounting, it operates within a temperature range of -55°C to 105°C.

Fixed Inductors Feature Summary

• Molded axial leaded construction with iron core
• High current handling capability up to 1.04 A
• Low DC resistance for efficient power transmission
• Wide operating temperature range suitable for harsh environments

Fixed Inductors Applications

• RF circuit filtering
• Power supply chokes
• Signal processing circuits
• General purpose inductive applications

Fixed Inductors Procurement Notes

Verify RoHS compliance status as specifications may vary by production batch or revision. Confirm exact electrical parameters against the latest manufacturer datasheet prior to integration. Ensure thermal management aligns with the specified operating temperature range during high-current operation.

Fixed Inductors Selection Notes

Select this component for applications requiring low inductance values with high current capacity. The 140 mOhm DCR minimizes power loss compared to higher resistance alternatives. Verify that the 220 nH value meets the target frequency requirements, considering the 300 MHz self-resonant limit.

Fixed Inductors Part Context

Part of the Delevan 1025R series, designed for general-purpose and RF applications. The series offers various inductance values with consistent physical dimensions (0.095" diameter x 0.250" length). This specific model targets high-current needs within the nano-Henry range.

Fixed Inductors Replacement Considerations

Direct substitutes include other 220 nH axial inductors with similar current ratings and DCR. Verify mechanical fit and electrical tolerance matches before substitution.