PTKM250-30SM

Fixed Inductors Overview

The Delevan PTKM250-30SM is a surface-mount power inductor from the PTKM-SM series. It features a toroidal core design with a nominal inductance of 250 µH and a tolerance of ±10%. The component has a maximum DC resistance of 0.36 ohms and supports a maximum DC current of 960 mA. Its self-resonant frequency is specified at 1 MHz. The unit utilizes radial vertical termination for PCB mounting.

Fixed Inductors Feature Summary

• Surface-mount toroidal choke construction
• Radial vertical lead termination
• Shielded magnetic core design

Fixed Inductors Applications

• Power supply filtering
• DC-DC converter circuits
• General power electronics

Fixed Inductors Procurement Notes

Verify RoHS compliance status as sources indicate non-compliance. Confirm exact current ratings against specific datasheet revisions. Ensure PCB footprint matches the SMT package dimensions. Validate supplier authenticity through authorized channels.

Fixed Inductors Selection Notes

Select this component for applications requiring compact surface-mount toroidal inductors. Compare DCR and current limits against circuit requirements. Verify compatibility with automated pick-and-place equipment due to the radial vertical form factor.

Fixed Inductors Part Context

This part belongs to the API Delevan PTKM-SM series of surface-mount power inductors. The series offers various inductance values with toroidal cores optimized for high-frequency power applications. The PTKM250-30SM specifically provides 250 µH in a small SMT package.

Fixed Inductors Replacement Considerations

Check for direct substitutes within the PTKM-SM series such as PTKM75-30SM or PTKM250-50SM if different electrical characteristics are needed. Verify pinout and mechanical dimensions before substitution.