105R-181M

Overview

The Delevan 105R-181M is a surface-mount RF inductor with an inductance of 180 nH and a tolerance of ±5%. It features a maximum DC current rating of 710 mA and a maximum DC resistance of 190 mOhms. The component has a minimum Q factor of 40 and a self-resonant frequency of 405 MHz. Its physical dimensions are 2.54 mm in length, 2.54 mm in width, and 1.91 mm in height. The device is unshielded and utilizes standard SMD/SMT terminations.

Feature Summary

• Unshielded surface-mount construction for compact RF circuit integration
• High self-resonant frequency capability for radio frequency applications
• Standard SMD/SMT termination style for automated PCB mounting

Applications

• Radio Frequency (RF) circuits
• Surface Mount Technology (SMT) assembly
• PCB Mount installations

Procurement Notes

Verify the obsolete status of this component before procurement planning. Confirm availability through authorized distributors or secondary market suppliers as original manufacturing may have ceased. Ensure that any substitute components meet the required electrical specifications and physical footprint constraints for the intended application.

Selection Notes

Select this component for designs requiring a precise 180 nH inductance with tight tolerance. Consider the 710 mA current limit and 190 mOhm resistance when evaluating power handling. Verify that the unshielded nature does not cause interference in dense layouts. Check compatibility with standard SMT reflow processes.

Part Context

This part belongs to the 105R series of fixed inductors manufactured by API Delevan. It is categorized under RF Inductors - SMD within the broader Inductors, Chokes & Coils family. The series is designed for general-purpose radio frequency applications requiring small form factors.

Replacement Considerations

Public confirmed substitute part numbers include 105-181JS. Verify electrical equivalence and pinout compatibility before substitution.