103R-123K

Overview

The Delevan 103R-123K is a fixed surface-mount RF inductor with an inductance of 12 µH and a tolerance of ±10%. It features a maximum DC resistance of 3.8 Ohms and a rated current of 160 mA. The component utilizes a ferrite core and operates within a temperature range of -55°C to +125°C. Its self-resonant frequency is specified at 35 MHz, with a minimum Q factor of 25. The physical dimensions are non-standard with two leads, suitable for PCB mounting.

Feature Summary

• Unshielded construction designed for radio frequency applications
• Ferrite core material ensures stable inductance characteristics
• Surface mount package facilitates automated PCB assembly

Applications

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

Procurement Notes

Verify the specific lead configuration against the official datasheet, as the part is described with both SMD and non-standard two-lead terminations. Confirm RoHS compliance status and ensure the supplier provides the manufacturer's original datasheet for electrical parameter validation before integration into production designs.

Selection Notes

Select this component when a 12 µH inductance is required for RF environments with limited current capacity. The high DC resistance suggests suitability for low-current signal paths rather than power delivery. Ensure the non-standard footprint aligns with the target PCB layout constraints.

Part Context

This part belongs to the 103R series of fixed inductors manufactured by API Delevan. The series is characterized by unshielded designs intended for radio frequency applications. The 103R-123K variant specifically targets circuits requiring moderate inductance values with defined self-resonant frequencies.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Verify compatibility with alternative components based on identical inductance, current rating, and physical footprint specifications.