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    Littelfuse Launches Industry-First 1000V Automotive Fuses

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    Root Causes and Effects of DC Bias and AC in Ceramic Capacitors

    How to Calculate the Output Capacitor for a Switching Power Supply

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    Littelfuse Launches Industry-First 1000V Automotive Fuses

    TDK Releases Industry-Leading 22nF 1000V C0G MLCCs in the 3225 Case

    Modelithics Releases COMPLETE Library v25.6 for Keysight ADS with 14 New Scalable Models

    Knowles Releases High Q Non-Magnetic X7R MLCCs for Medical Imaging

    Researchers Developed Reduced Graphene Oxide (rGO) High Energy Density Graphene Supercapacitors

    Samtec Agreed with Molex Second-Source License on High-Speed Interconnects for Data Centers

    Panasonic Industry Releases Highest Capacitance 63V Conductive Polymer Tantalum Capacitors in 3mm Height

    August 2025 ECIA US Components Sales Sentiment Remains Strong

    Vishay Releases Industry First Automotive SMD Y1 Safety Ceramic Capacitors

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    Ripple Steering in Coupled Inductors: SEPIC Case

    SEPIC Converter with Coupled and Uncoupled Inductors

    Coupled Inductors in SEPIC versus Flyback Converters

    Non-Linear MLCC Class II Capacitor Measurements Challenges

    Percolation Phenomenon and Reliability of Molded Power Inductors in DC/DC converters

    Root Causes and Effects of DC Bias and AC in Ceramic Capacitors

    How to Calculate the Output Capacitor for a Switching Power Supply

    Switched Capacitor Converter Explained

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TDK Introduces Compact High-Current Chokes for Automotive and Industrial Applications

16.3.2023
Reading Time: 2 mins read
A A

TDK Corporation presents the B82559A*A033 series of new shielded EPCOS ERU33 high-current chokes for through-hole mounting.

Designed for very high saturation currents from 32 A to 83 A at 100 °C, the six new types cover a range of inductance values from 3.2 µH to 10 µH. DC resistances are as low as 0.85 mΩ or 1.2 mΩ, depending on the type.

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Thanks to the flat wire winding, the chokes have very compact dimensions of only 33 x 33 x 15 mm.

By thermally connecting the flat wire winding to the core, the large ferrite surface can be coupled to a heat sink for effective heat dissipation. In addition to the standard types, customized variants with other inductance values can also be realized.

The RoHS-compatible and AEC-Q200 REV D-qualified inductors are designed for operating temperatures from -40 °C to +150 °C. Typical automotive applications are buck-boost chokes for DC-DC converters (e.g. for 48 V on-board power supplies or differential mode chokes in the input filter of onboard chargers. In industrial electronics, they can be used as storage and output chokes in high-current supplies and PoL supplies.

Features

  • High saturation currents from 32 A to 83 A
  • Low DC resistances of 0.85 mΩ or 1.2 mΩ
  • Very compact dimensions of only 33 x 33 x 15 mm

Applications

  • Buck-Boost DC-DC converter for 48 V on-board power supplies
  • Storage and output chokes in high current supplies

Related

Source: TDK

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