1025R-90F

Fixed Inductors Overview

The Delevan 1025R-90F is a fixed axial leaded RF inductor from the 1025R series. It features an iron core and molded construction with unshielded design. The component provides an inductance of 820 µH with a tight tolerance of ±1%. It supports a maximum DC current of 29 mA and has a maximum DC resistance of 65 Ohms. The self-resonant frequency is 3.8 MHz, with a minimum Q factor of 30. Operating temperature range spans -55°C to 105°C. Physical dimensions are 2.41 mm diameter by 6.35 mm length.

Fixed Inductors Feature Summary

• Molded unshielded construction for standard RF applications
• Axial leaded termination style for through-hole PCB mounting
• Iron core material providing stable inductance characteristics

Fixed Inductors Applications

• RF circuit filtering
• Signal processing networks
• Impedance matching stages

Fixed Inductors Procurement Notes

Verify the specific ordering suffix against manufacturer documentation to confirm packaging configuration. Standard availability may require checking distributor stock levels as supply conditions vary. Ensure compliance with RoHS3 specifications if required by project standards. Confirm that the axial lead pitch matches the target PCB layout constraints before finalizing procurement orders.

Fixed Inductors Selection Notes

Select this component when high inductance values are required within a compact axial form factor. The 1% tolerance suits precision tuning applications. Verify that the 29 mA current rating meets the circuit's operational requirements. Consider the unshielded nature for placement relative to sensitive components to prevent interference.

Fixed Inductors Part Context

This part belongs to the Delevan 1025R series of fixed RF inductors. The series offers various inductance values using iron cores. These components are designed for general-purpose RF use. They provide reliable performance across wide temperature ranges. The axial package facilitates easy integration into traditional through-hole designs.

Fixed Inductors Replacement Considerations

Direct substitutes include other 1025R series variants with similar electrical parameters. Cross-reference with API Delevan catalogs for equivalent inductance and tolerance ratings. Ensure physical dimensions match the existing footprint. Verify that alternative parts meet the same thermal and current specifications.