1025R-34F

Fixed Inductors Overview

The Delevan 1025R-34F is an unshielded molded axial leaded RF inductor designed for established reliability applications. It features a nominal inductance of 3.9 uH with a tight tolerance of 1%. The component supports a maximum DC current of 250 mA and exhibits a maximum DC resistance of 1 ohm. Electrical performance includes a minimum Q factor of 50 at a test frequency of 7.9 MHz and a self-resonant frequency of 80 MHz. It operates within a temperature range of -55°C to +105°C, with physical dimensions of 6.35 mm length and 2.41 mm diameter.

Fixed Inductors Feature Summary

• Molded construction provides mechanical stability and environmental protection for the internal coil structure.
• Unshielded design allows for flexible placement in circuit layouts without magnetic interference constraints.
• Axial through-hole termination facilitates standard PCB mounting techniques for reliable electrical connections.

Fixed Inductors Applications

• RF signal processing circuits
• Impedance matching networks
• Filtering stages in radio frequency equipment

Fixed Inductors Procurement Notes

Verify the specific manufacturing lot and compliance documentation upon receipt, as this component may be subject to established reliability standards. Confirm that the axial lead form factor matches the target PCB footprint requirements. Ensure storage conditions remain within specified limits to preserve the integrity of the molded casing and terminal plating before assembly.

Fixed Inductors Selection Notes

Select this component when a precise 3.9 uH inductance is required with minimal deviation. The low DC resistance supports higher current handling compared to higher inductance variants in the series. Consider the unshielded nature for applications where magnetic coupling with adjacent components must be minimized or controlled by layout rather than housing.

Fixed Inductors Part Context

This part belongs to the 1025R series of fixed inductors manufactured by Delevan. The series utilizes iron core materials to achieve stable inductance values in a compact axial package. It is categorized under RF inductors, distinguishing it from general-purpose power chokes by its optimized high-frequency characteristics and quality factor specifications.

Fixed Inductors Replacement Considerations

Cross-reference with other 1025R series variants such as 1025R-36K for different inductance values. Verify that substitute parts maintain the same axial dimension and mounting style. Ensure alternative components meet the 1% tolerance requirement if strict impedance control is necessary for the application.