Login
OverviewAll product unitsProduct unitPassive ComponentsProduct groupEMC ComponentsProduct familyFilter Evaluation BoardsEvaluation BoardsEvaluation Board Line Filter
OverviewAll product unitsProduct unitPassive ComponentsProduct groupEMC ComponentsProduct familyFilter Evaluation BoardsEvaluation BoardsEvaluation Board Line Filter

Evaluation Board Line Filter

Order Code 7449981

Evaluation Board Line Filter

Characteristics

  • Printed circuit board for evaluation of different EMC-filters
  • To evaluate and select different filter components for the best possible common and differential mode attenuation for your application
  • THT (Through Hole Technology) mounting

Components are not included!

Applications

  • Line filter with good suitability even for unknown source and sink impedances
  • Suppression of conducted interferences caused, for example, by switch mode power supplies
  • AC mains applications up to 250 V
  • Important information: This is an evaluation board. The board should not be installed in the final application.

Application Notes

Find filter solutions quickly and cost-effectively with the

Evaluation Board

This PCB offers a fast and cost-effective means of building up the filter design with various components. It allows for the examination of the filter circuit's performance in relation to the desired filtering effect, facilitating the seamless integration of the chosen filter circuit into the application. This can reduce development time and the associated costs.

The evaluation board can be used as a supplement to the Design Your EMC-Filter Design Kit or independently with the components shown in the adjacent figure and below.

Go To Design Kit

Common and differential mode attenuation

LC filter for common mode suppression

The Common Mode Choke (CMC) and the Y-Capacitors (CY1, CY2) build a low-pass for high frequency common mode interferences. While Y-Capacitors divert high-frequency interference towards ground, it is attenuated by the Common Mode Choke due to the high common mode impedance.

Pi filter for differential mode suppression

In this circuit, the X-Capacitors (CX1 and CX2) and the Leakage Inductance (LLeak) of the Common Mode Choke built a low-pass filter. The high frequency interference is filtered while the supply current, which typically has a much lower frequency (50 - 60 Hz), remains almost unaffected.

Suitable common mode chokes

WE-CMB Common Mode Power Line Choke: Type L
WE-CMBNC Common Mode Power Line Choke Nanocrystalline: Type L
WE-CMB NiZn Common Mode Power Line Choke
WE-ExB Common Mode Power Line Choke: Type L
WE-LF Common Mode Power Line Choke

Suitable capacitors

WCAP-FTX2 Film Capacitors
WCAP-FTXX Film Capacitors
WCAP-CSSA Interference Suppression

Suitable electromechanical components

WP-SMSH REDCUBE SMT with external thread with Pin
WR-TBL Series 2015 - 5.08 mm 45° Entry Modular w. Rising Cage Clamp: 691201520002
WA-SPAIE Plastic Spacer Stud, metric, internal/ external
WA-SSTIE Steel Spacer Stud, metric, internal/external
WA-SNSR Self-Retaining Spacer

Design Kits

Design Kit Design Your EMC-Filter

Videos

Würth Elektronik Webinar: EMC Filters – From component to design

Videos

#askLorandt erklärt: Schritt für Schritt-Aufbau eines EMV-Netzfilters

Videos

Wie man EMV Probleme löst! || Das Mysterium des surrenden Lautsprechers