103R-392JS

Overview

The Delevan 103R-392JS is a fixed RF inductor with an inductance of 3.9 µH and a tolerance of ±5%. It features a maximum DC resistance of 1.55 Ohms and supports a maximum DC current of 250 mA. The component operates within a temperature range of -55°C to +125°C, has a minimum Q factor of 45 at 7.9 MHz, and exhibits a self-resonant frequency of 1.335 GHz.

Feature Summary

• Unshielded wirewound construction for RF applications
• Standard two-lead termination style
• Wide operating temperature capability

Applications

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

Procurement Notes

Verify RoHS compliance status directly with the manufacturer or authorized distributors, as records indicate conflicting information regarding lead-free certification for this specific part number. Confirm availability through official channels, as inventory levels fluctuate and may not be consistently reflected across all distribution platforms.

Selection Notes

Select this component when a 3.9 µH unshielded inductor with standard leaded termination is required. Ensure the 250 mA current rating and 1.55 Ohm DC resistance align with the circuit design constraints. Verify that the non-shielded nature does not interfere with nearby sensitive components due to potential magnetic field emission.

Part Context

This part belongs to the Delevan 103R series of surface mount and leaded RF inductors. It shares physical dimensions with other variants in the series but differs in electrical specifications such as inductance value, tolerance, and current handling capabilities based on the winding configuration and core material used.

Replacement Considerations

The 103R-392J is a documented alternative variant within the same series offering similar form factors. Verify that the electrical parameters of any substitute match the original requirements before implementation.