TDK Electronics · TDK Europe

Capacitors for DC Link

Up to +135 °C • Automotive grade

THB-robust • High current capability

UL 810-qualified versions 

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TDK provides a wide range of voltage and capacitance options to meet the customer requirements for DC link designs. These capacitors are available in 2-, 4- and multi-pin versions and come in rectangular and cylindrical shapes. 

Focusing on high energy density, ripple current, ambient temperature, and humidity, TDK’s DC link film capacitors cover applications ranging from industrial variable-speed drives to solar, automotive, and consumer applications. In addition to their compact size and low ESR, their low self-inductance provides an excellent design option for fast switching applications using the latest wide bandgap (WBG) switching devices in SiC and GaN technology.


Latest developments

B3271 Series
TDK introduces new film capacitors for DC link applications: The B3271 series features high energy and power density.  These are rated for DC voltages from 500 V to 1600 V, offer capacitance values from 0.47 µF to 170 µF, and can operate up to +105 °C. At rated voltage and an operating temperature of +70 °C, the typical life of the rugged, and self-healing capacitors is 95,000 hours. 

 xEV Cap Pic

xEVCap
TDK presents a standardized and modular DC link capacitor design - xEVCap- for powertrain inverters in passenger cars, commercial and off-highway vehicles, and machinery tools. This approach helps inverter designers meet varying capacitance and current requirements for lower volume applications while saving valuable development time thanks to the modularity and scalability of the xEVCap solution.

Features & benefits

  • Scalable and modular for different power levels and densities
  • Compatible with wide bandgap power semiconductor (SiC, GaN)
  • Good self-healing properties
  • Low ESR and low ESL
  • Compliant to IEC TS 6337:2024
  • Compliant to AEC-Q200 Rev E (lead wire versions)

Applications
DC link for main traction inverters in passenger cars, commercial and off-highway vehicles and machinery tools.

Explore more about xEVCap


Features & benefits

Features

  • Most comprehensive range of superior capacitors
  • Up to 1600 V (DC)
  • Up to 480 µF in one unit
  • Automotive-grade versions (AEC-Q200) 
  • Highlights:
    • Compact sizes
    • High RMS/high pulse current capability
    • Robust High Temperature, Humidity and Bias (THB) options

*Please note that these features may vary by product series

Customer benefits

Savings

  • Less PCB space thanks to higher packing densities
  • Fewer components thanks to high current/high pulse capability series
  • Long service life thanks to robustness against THB

Electrical

  • Long service life based on advanced polypropylene film technology
  • Self-healing
  • Capacitance stability over voltage variation

Mechanical  

  • 2- and 4-pin versions available

Environment

  • Pb-free, RoHS compatible

Get data sheets and search

PDF Rated voltage (V DC) Capacitance (µF) Temperature, max. (°C) Design Type THB compliance AEC–Q200
300 - 875 0.47 - 270 +105 Radial, boxed B3267*D/G/J/T +40 °C / 93% RH / VR DC / 1000 h Yes
450 - 1600 0.33 - 120 +105 Radial, boxed B3277*M +85 °C / 85% RH / VR DC / 1000 h Yes
450 - 1600 0.33 - 120 +105 Radial, boxed B3277*H +60 °C / 95% RH / VR DC / 1000 h Yes
450 - 1300 1.5 - 75 +105 Radial, boxed B3277*D/E/G/J/T +40 °C / 93% RH / 0 V / 1344 h ---
450 - 1300 6.5 - 260 +105 Parallel wire leads B32320I +40 °C / 93% RH / 0 V / 1344 h ---
500 - 1200 0.68 - 170 +105 Radial, boxed B3277*X/Y/Z +40 °C / 93% RH / 0 V / 1344 h ---
500 - 1600 0.47 - 170 +105 Radial, boxed B3271*H +60 °C / 95% RH / VR DC / 1000 h Yes
500 - 920 60 - 270 +105 Lead wire terminal B25654A*001 +40 °C / 93% RH / VR DC / 1000 h Yes
500 - 920 60 - 270 +105 Flat terminal B25654A*002 +40 °C / 93% RH / VR DC / 1000 h Yes
new
630 - 840 1 - 50 +125 Radial, boxed B3277*P +85 °C / 85% RH / VR DC / 1000 h Yes

In order to download up to 20 files together as zip, please mark them with the check box. To start the download, please click the Download button at the end of the list.

  • Definition of terms
  • Typical applications
  • Questionnaire for new developments
  • General technical information
  • Standards and specifications
  • Marking and ordering code system
  • Taping and packing
  • Weights
  • Mounting guidelines
  • Quality
  • Environment
  • Symbols and terms
  • Overview
  • Cautions and warnings

In order to download up to 20 files together as zip, please mark them with the check box. To start the download, please click the Download button at the end of the list.


Applications

 Automotive
Traction
 Renewable Energy
 Industrial Automation

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