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EMI dV/dt Filter TF02503 for Bipolar Motors

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Stepper Motor EMI Filter TF02503

This filter qualifies for UL 508A panels by being low voltage, low energy device

  • No mechanical attachments

  • No changes in software

  • No adjustments

Attention Danfoss Customers: 

For operation with Danfoss valves use factory-approved model DH231 as a replacement for an obsolete AKA211 filter.  TF02503 is a stepper motor filter for a different purpose - reduction of EMI.

Stepper motor EMI filters help to substantially reduce EMI in the equipment and to protect motor's bearing from EDM-caused fluting.  These patented filters are complete multiple-mode filters, providing comprehensive noise reduction, not just reactors.

This model of stepper motor/VFD filter is most suited for bipolar motors consuming under 3A.  For higher currents please see our 10A version.  

All specifications are subject to change without notice

If you are not sure which specific model would work with your drive/motor, send us a legible photo of drive and/or motor label and, if you know, the specific models 

Request a Quote

Thanks! We will get back to you soon.

Mounting Dimensions

Basic Connections and Performance of  Stepper Motor Filter TF02503

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DIN Rail Mounting

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Stepper Motor Drive Waveform and Ground Current
Stepper Motor Drive Waveform and Ground Current

Drive Pulse Shaping and Ground Current Reduction

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DIN Rail Kit


DIN Rail Kit for TF02503 OnFILTER' Stepper Motor Filter
Application Notes

Filters for Servo Motors and VFD

Technical Articles

Practical Aspects of Managing EMI-Caused EOS in IC Handlers and Similar Equipment

Measurements of Conducted Emission in the Manufacturing Environment

EMI-Generated EOS in a Wire Bonder

Mitigating EMI Issues in Servo Motors and Variable Frequency Drives

Dealing with EMI in Semiconductor Device Manufacturing

EOS Sources in Automated Equipment

Managing EMI in Back-End IC Manufacturing, TAP Times

EMI-Caused EOS Exposure of Components and its Mitigation

Origins of EOS in Manufacturing Environment and Its Classification

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