103R-272G

Overview

The Delevan 103R-272G is a fixed surface-mount RF inductor designed for high-frequency circuit applications. It features an unshielded construction with a nonstandard footprint and two leads, facilitating direct integration into printed circuit boards. The component provides an inductance value of 2.7 µH with a tight tolerance of ±2%, ensuring precise signal handling characteristics. It supports a maximum DC current rating of 290 mA while maintaining a maximum DC resistance of 1.15 Ohms. This design prioritizes stable performance in radio frequency environments where minimal electromagnetic interference shielding is required.

Feature Summary

• Unshielded construction suitable for specific RF layout requirements
• Surface-mount technology (SMT) implementation for automated assembly
• High precision inductance tolerance for accurate signal filtering

Applications

• RF signal processing circuits
• Impedance matching networks
• Filtering components in communication devices

Procurement Notes

Verify the exact physical dimensions against your PCB footprint library, as this component utilizes a nonstandard package size rather than industry-standard EIA codes. Confirm RoHS compliance status with the supplier if environmental regulations are mandatory for your production line. Ensure that the 290 mA current rating meets the peak operational demands of your specific circuit design to prevent saturation or thermal issues during continuous operation.

Selection Notes

Select this component when a compact, unshielded inductor is required for RF applications with moderate current demands. The 2.7 µH value and 2% tolerance make it suitable for precise tuning tasks. Consider the nonstandard footprint early in the design phase to avoid rework. Compare against shielded alternatives if electromagnetic compatibility (EMC) concerns arise, as this model lacks magnetic shielding.

Part Context

This part belongs to the API Delevan series of fixed RF inductors, which are engineered for reliability in demanding electronic environments. The manufacturer specializes in passive components for telecommunications and industrial electronics. The 103R series specifically targets surface-mount applications, offering a balance between electrical performance and physical compactness for modern miniaturized device designs.

Replacement Considerations

Direct substitutes must match the 2.7 µH inductance, 290 mA current rating, and 1.15 Ohm resistance. Verify footprint compatibility due to the nonstandard package. Cross-reference with other API Delevan models or equivalent SMD RF inductors from manufacturers like Murata or TDK, ensuring identical electrical parameters and lead configuration.