105R-181J

Overview

The Delevan 105R-181J is an unshielded surface-mount RF inductor from the 105/R series. It features a nominal inductance of 180 nH with a tolerance of ±5%. The component has a maximum DC resistance of 190 mOhms and supports a maximum DC current of 710 mA. Key electrical parameters include a minimum Q factor of 40 and a self-resonant frequency of 405 MHz. The physical dimensions are 2.54 mm in length, 2.54 mm in width, and 1.91 mm in height.

Feature Summary

• Unshielded SMD construction for RF applications
• Ferrite core material for stable performance
• Standard termination type for PCB mounting

Applications

• RF circuit filtering
• Impedance matching networks
• General RF signal processing

Procurement Notes

Verify component availability as this part may be discontinued or have limited stock. Confirm RoHS compliance status through official documentation before procurement. Ensure the specific suffix matches design requirements. Check for alternative sources if original manufacturing is halted. Validate datasheet revisions against current production batches.

Selection Notes

Select this component for high-frequency applications requiring low inductance values. Consider the 710 mA current rating for power handling needs. The unshielded design requires careful layout to minimize interference. Verify the 405 MHz self-resonant frequency aligns with operational bandwidth. Ensure PCB space accommodates the 2.54 x 2.54 mm footprint.

Part Context

This inductor belongs to the Delevan 105/R series of fixed RF inductors. These components are designed for surface-mount technology integration. The series offers various inductance values optimized for radio frequency circuits. The 105R-181J specifically targets applications needing precise 180 nH inductance with tight tolerance.

Replacement Considerations

Public confirmed substitute part numbers: 105-181JS, 105R-181G, 105R-181M.