103R-222H

Overview

The Delevan 103R-222H is a surface-mount fixed inductor designed for radio frequency applications. It features an unshielded construction with a rectangular form factor and phenolic core material. The component provides a nominal inductance of 2.2 µH with a tight tolerance of 3%. It supports a maximum DC current of 310 mA and exhibits a maximum DC resistance of 1 ohm. The device operates within a temperature range of -55°C to 125°C and utilizes a standard two-lead SMD termination.

Feature Summary

• Unshielded design suitable for general-purpose RF circuits
• Rectangular surface-mount package with phenolic core
• High Q-factor performance for signal integrity

Applications

• RF filtering networks
• Impedance matching circuits
• General-purpose signal processing

Procurement Notes

Verify the specific datasheet version from API Delevan to confirm RoHS compliance status and exact physical dimensions. Ensure the unshielded characteristic aligns with EMI requirements for the target PCB layout. Cross-reference the 310 mA saturation current against peak load conditions to prevent performance degradation during operation.

Selection Notes

Select this component when an unshielded SMD inductor is required for space-constrained RF designs. The 2.2 µH value and 3% tolerance suit precision tuning applications. Consider the 1 ohm DC resistance for power loss calculations. The wide operating temperature range ensures reliability in harsh environments compared to standard commercial grade parts.

Part Context

This part belongs to the API Delevan fixed inductor family, specialized for high-frequency electronics. The 103R series typically offers compact footprints for modern PCB assembly. As an unshielded variant, it differs from shielded counterparts by allowing greater magnetic field exposure, which may influence nearby component placement.

Replacement Considerations

Direct substitutes include other 2.2 µH SMD inductors with similar current ratings. Verify footprint compatibility and inductance tolerance before substitution. Unshielded alternatives may require adjusted spacing to mitigate interference.