1025R-40H

Fixed Inductors Overview

The Delevan 1025R-40H is a fixed leaded RF inductor designed for high-frequency applications. It features an inductance of 3.3 µH with a tight tolerance of ±3%. The component has a maximum DC current rating of 360 mA and a maximum DC resistance of 0.7 Ohms. It exhibits a minimum Q factor of 30 at a test frequency of 10 MHz and a self-resonant frequency of 125 MHz. The unit utilizes a molded construction with an iron core, housed in an axial package measuring 0.095 inches in diameter by 0.250 inches in length.

Fixed Inductors Feature Summary

• Molded unshielded construction for consistent RF performance
• Axial through-hole mounting configuration
• Iron core material optimized for high-frequency operation

Fixed Inductors Applications

• RF circuit filtering
• Impedance matching networks
• High-frequency signal processing

Fixed Inductors Procurement Notes

Verify the specific suffix designation against official API Delevan documentation to confirm exact electrical tolerances and testing frequencies. Ensure that the selected variant matches the required self-resonant frequency and Q-factor specifications for the target application environment. Cross-reference the manufacturer part number with authorized distributor catalogs to validate current availability and compliance status prior to ordering.

Fixed Inductors Selection Notes

Select this component when a 3.3 µH inductance value is required with a ±3% tolerance for precision RF circuits. Consider the 360 mA current rating and 0.7 Ohm DCR limits to ensure compatibility with the circuit's power handling requirements. The axial form factor and molded body are suitable for standard PCB mounting processes requiring robust mechanical stability in high-frequency environments.

Fixed Inductors Part Context

The 1025R-40H belongs to the Delevan 1025R series of fixed RF inductors. This series is characterized by molded designs intended for reliable performance in radio frequency applications. The components typically feature axial leads and iron cores, providing stable inductance values across a wide frequency range while maintaining low DC resistance.

Fixed Inductors Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source data.