1025R-28H

Fixed Inductors Overview

The Delevan 1025R-28H is a leaded RF inductor from the 1025/R series. It features an axial termination style and unshielded molded construction with an iron core. The component has an inductance of 680 nH, a tolerance of 3%, and a maximum DC resistance of 850 mOhms. It supports a maximum DC current of 420 mA and achieves a minimum Q factor of 28 at 7.9 MHz. The self-resonant frequency is 100 MHz. Physical dimensions are 2.41 mm diameter by 6.35 mm length.

Fixed Inductors Feature Summary

• Molded unshielded coil design for RF applications
• Axial through-hole mounting configuration
• Iron core construction for stable inductance

Fixed Inductors Applications

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

Fixed Inductors Procurement Notes

Verify the specific suffix against official datasheets to confirm tolerance and electrical ratings. Confirm RoHS compliance status as it varies within the series. Check availability through authorized distributors. Ensure PCB layout accommodates axial leads and specified body dimensions.

Fixed Inductors Selection Notes

Select this component for applications requiring low-profile axial RF inductors. Compare self-resonant frequency against operating bandwidth. Verify current handling capabilities against circuit load. Consider thermal performance within the -55°C to 105°C range. Evaluate space constraints against the 6.35 mm length.

Fixed Inductors Part Context

Part of the Delevan 1025R series of fixed RF inductors. Shares physical form factor with other variants in the family. Designed for high-frequency stability. Manufactured by API Delevan. Commonly used in communication equipment and RF modules.

Fixed Inductors Replacement Considerations

• 1025R-18H
• 1025R-20G

Fixed Inductors FAQ

What is the self-resonant frequency?

The self-resonant frequency is 100 MHz.

Is the component shielded?

No, the 1025R-28H is an unshielded molded coil.