1025R-50H

Fixed Inductors Overview

The Delevan 1025R-50H is a fixed axial leaded RF inductor from the 1025R series. It features an unshielded molded construction with an iron core, designed for through-hole PCB mounting. The component provides an inductance of 18 µH with a tolerance of ±3%. Key electrical parameters include a maximum DC resistance of 3.1 Ohms and a rated current of 149 mA. It exhibits a self-resonant frequency of 30 MHz and a Q factor of 50 at 2.5 MHz. The unit operates within a temperature range of -55°C to +105°C.

Fixed Inductors Feature Summary

• Unshielded molded design utilizing an iron core for stable RF performance
• Axial leaded termination style suitable for standard through-hole assembly
• Established reliability characteristics compliant with RoHS3 standards

Fixed Inductors Applications

• RF circuit filtering and impedance matching networks
• General purpose inductive components in electronic assemblies
• Signal processing applications requiring specific inductance values

Fixed Inductors Procurement Notes

Verify the exact suffix designation against official manufacturer documentation to confirm tolerance and current ratings. Ensure compatibility with automated or manual through-hole soldering processes. Confirm environmental compliance status such as RoHS3 and REACH requirements prior to integration into final products. Cross-reference part numbers carefully as minor suffix variations may indicate different specifications.

Fixed Inductors Selection Notes

Select this component when an 18 µH inductance value is required for RF applications. Consider the 149 mA current rating and 3.1 Ohm DC resistance limits during circuit design. The axial package requires adequate PCB spacing. Evaluate the self-resonant frequency constraint for high-frequency signal integrity. Compare against other series members if different tolerance or current capabilities are needed.

Fixed Inductors Part Context

This part belongs to the Delevan 1025R series of fixed RF inductors. The series offers various inductance values ranging from low microhenries to higher ranges, all sharing similar physical dimensions and mounting styles. These components are engineered for consistent performance in radio frequency environments, providing reliable inductive properties for filter and tuning circuits.

Fixed Inductors Replacement Considerations

Direct substitutes within the same series include 1025R-50J (±5% tolerance) and 1025R-50K (±10% tolerance). Verify that the alternative tolerance meets the circuit requirements. Other series like ER1025 offer established reliability variants but may differ in packaging or specific electrical characteristics.