103R-182G

Overview

The Delevan 103R-182G is a fixed surface-mount RF inductor designed for radio frequency applications. It features an inductance of 1.8 µH with a tolerance of ±2%. The component has a maximum DC resistance of 920 mΩ and supports a maximum DC current of 325 mA. It utilizes a ferrite core material and is housed in a nonstandard, two-lead SMD package without shielding. This unshielded design allows for specific layout considerations regarding magnetic field interaction.

Feature Summary

• Unshielded construction suitable for RF choke applications
• Ferrite core material for stable inductance characteristics
• Standard two-lead surface mount termination

Applications

• RF signal filtering
• Choke coils in high-frequency circuits
• General RF circuitry requiring 1.8 µH inductance

Procurement Notes

Verify the exact physical dimensions against your PCB footprint, as the package is described as nonstandard. Confirm that the unshielded nature does not interfere with nearby components. Ensure the 325 mA current rating meets your circuit's operational requirements. Check RoHS compliance status if required by your manufacturing standards.

Selection Notes

Select this part when a 1.8 µH value is needed in a compact, unshielded form factor. Consider the 920 mΩ DCR impact on voltage drop. Compare with shielded alternatives like the S1008R series if magnetic interference is a concern. Verify thermal performance at the specified 325 mA limit.

Part Context

This component belongs to the Delevan 103R series of fixed inductors. It shares the 1.8 µH nominal value with other variants but differs in tolerance, resistance, and shielding. The 103R series typically offers unshielded options for cost-sensitive or space-constrained RF designs where magnetic coupling is managed by layout.

Replacement Considerations

The 103R-182H is a similar unshielded variant with a 3% tolerance and slightly different DC resistance. Shielded equivalents such as the S1008R-182G offer lower resistance but require more board space due to the shield structure. Verify pin compatibility before substitution.