103R-102FS

Overview

The Delevan 103R-102FS is an unshielded surface-mount RF inductor with a nominal inductance of 1 µH and a tolerance of ±1%. It features a maximum DC resistance of 540 mΩ and supports a maximum DC current of 425 mA. The component has a minimum Q factor of 22 and a self-resonant frequency of 145 MHz. Its physical dimensions are 2.54 mm in length, 2.54 mm in width, and 1.91 mm in height.

Feature Summary

• Unshielded construction for minimal magnetic interference
• Surface-mount design for automated PCB assembly
• High self-resonant frequency for RF stability

Applications

• RF circuit filtering
• Impedance matching networks
• Oscillator tank circuits

Procurement Notes

Verify the exact suffix against official manufacturer documentation to confirm tolerance and packaging specifications. Ensure compatibility with standard SMD reflow processes. Confirm RoHS compliance status through the latest datasheet before integration into regulated products.

Selection Notes

Select this component when a precise 1 µH inductance with tight ±1% tolerance is required for RF applications. Consider the 425 mA current rating and 540 mΩ DCR for power loss calculations. Verify that the 145 MHz self-resonant frequency aligns with the target operating band.

Part Context

This part belongs to the Delevan 103/R series of RF inductors. These components are designed for high-frequency signal processing where stable inductance and low parasitic effects are critical. The series offers various values optimized for RF front-end modules.

Replacement Considerations

Cross-reference with other 1 µH ±1% SMD RF inductors from manufacturers such as Coilcraft or Murata. Ensure equivalent Q factor, current rating, and self-resonant frequency to maintain circuit performance without redesign.