PTKM150-121H

Fixed Inductors Overview

The Delevan PTKM150-121H is a shielded toroidal power inductor with radial horizontal mounting. It features an inductance of 150 µH and a tolerance of ±10%. The component has a maximum DC resistance of 95 mΩ and a current rating of 2.68 A. Its self-resonant frequency is 1.5 MHz. The physical dimensions are 20.32 mm in length, 12.7 mm in width, and 24.76 mm in height.

Fixed Inductors Feature Summary

• Shielded toroidal core design for reduced electromagnetic interference
• Horizontal radial termination style for PCB integration
• Fixed inductance value with standard tolerance

Fixed Inductors Applications

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

Fixed Inductors Procurement Notes

Verify the specific suffix 'H' indicates horizontal mounting orientation as distinct from vertical variants. Confirm RoHS compliance status through official manufacturer documentation, as some listings indicate non-compliance. Ensure the supplier provides the original datasheet to validate electrical parameters against application requirements before procurement.

Fixed Inductors Selection Notes

Select this component when horizontal mounting space constraints exist within the assembly. Compare the 2.68 A current rating against peak load requirements to prevent saturation. Evaluate the 95 mΩ DCR impact on overall circuit efficiency. Consider the 1.5 MHz self-resonant frequency relative to switching frequencies in the target application.

Fixed Inductors Part Context

This part belongs to the PTKM series of leaded power inductors manufactured by API Delevan Inc. The series offers various mounting orientations and inductance values. The PTKM150-121H specifically denotes the 150 µH variant with horizontal termination, distinguishing it from vertical mount counterparts like the PTKM150-121VM.

Fixed Inductors Replacement Considerations

Direct substitutes include PTKM150-121VM for vertical mounting if board layout permits. Verify that replacement parts maintain identical inductance, current ratings, and physical footprint compatibility.