103R-331K

Overview

The Delevan 103R-331K is a fixed surface mount inductor with a nominal inductance of 0.33 µH and a tolerance of ±10%. It features a maximum DC resistance of 235 mΩ and supports a saturation current of 645 mA. The component utilizes an unshielded ferrite core design, suitable for RF applications. It operates within a temperature range of -55°C to 125°C and is housed in a nonstandard rectangular package.

Feature Summary

• Unshielded chip construction for general-purpose RF applications
• Ferrite core material providing stable inductance characteristics
• Surface mount installation for automated assembly processes

Applications

• RF circuit filtering
• General purpose inductance requirements
• Signal processing circuits

Procurement Notes

Verify RoHS compliance status as sources indicate conflicting information regarding lead content. Confirm the specific package dimensions against the official API Delevan datasheet, as the form factor is classified as nonstandard. Ensure the selected variant matches the required tolerance and current ratings for the target application environment.

Selection Notes

Select this component when an unshielded inductor is required for RF signal paths. Consider the 645 mA saturation limit and 235 mΩ DC resistance for power efficiency. Verify that the nonstandard footprint fits the PCB layout constraints. Check environmental certifications if lead-free operation is mandatory for the final product assembly.

Part Context

This part belongs to the 103R series of fixed inductors manufactured by API Delevan. The series includes various inductance values and tolerance options designed for surface mount technology. These components are typically used in electronic circuits requiring precise inductive properties in a compact form factor.

Replacement Considerations

Direct substitutes include the 103R-331G (2% tolerance) and 103R-331H. Verify compatibility regarding tolerance differences and potential variations in saturation current or DC resistance before swapping.