PTHF250-59

Fixed Inductors Overview

The Delevan PTHF250-59 is a shielded toroidal power inductor from the PTHFR-H series, designed for PCB mounting. It features an inductance of 250 µH with a 10% tolerance and a maximum DC current rating of 3.5 A. The component exhibits a maximum DC resistance of 88 mOhms and a self-resonant frequency of 1 MHz. Physical dimensions include a diameter of 29.21 mm and a width of 12.06 mm, utilizing a radial vertical open package configuration.

Fixed Inductors Feature Summary

• Shielded toroidal core construction minimizes electromagnetic interference
• Radial vertical lead termination facilitates printed circuit board integration
• High saturation current capability supports demanding power applications

Fixed Inductors Applications

• Power supply filtering circuits
• Common mode noise suppression
• DC-DC converter input/output stages

Fixed Inductors Procurement Notes

Verify the specific suffix against manufacturer documentation to confirm exact electrical tolerances and physical dimensions. Ensure compatibility with existing PCB footprint requirements regarding radial lead spacing and mounting height constraints before finalizing procurement decisions.

Fixed Inductors Selection Notes

Select this component when high current handling and magnetic shielding are required in a compact toroidal form factor. Compare the 3.5 A current rating and 88 mOhm resistance against circuit load requirements to ensure adequate performance margins under operating conditions.

Fixed Inductors Part Context

This part belongs to the API Delevan PTHFR-H series of fixed power chokes. These components are engineered for robust performance in industrial and commercial power electronics, offering reliable inductance stability across varying temperature ranges while maintaining low profile characteristics suitable for dense assembly layouts.

Fixed Inductors Replacement Considerations

Cross-reference with PTHF250R-59H for potential equivalent specifications within the same product family. Verify dimensional and electrical parameter alignment prior to substitution.