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Power Electronics

Snap-In Capacitors Have High Ripple Current Capability

TDK is offering two new 105°C snap-in series of EPCOS brand aluminum  electrolytic capacitors with a very high ripple current capability and a longer  useful life. The new B43545* series has a useful life is 5000 h, are  available with rated voltages of 400 V DC and 450 V DC, and have  capacitances of 82 µF to 820 µF. The capacitors of the new B43547* series have a  useful life of 8000 h, a voltage range from 200 V DC to  450 V DC, and are available with capacitances of 82 µF to 2200  µF.

The thermal resistances and ESR values of both series were further reduced, so that the  ripple current capability was significantly increased. Depending on the type,  these new capacitors have dimensions of between 25 x 25 mm and 35 x 55 mm (d x  h). They are designed for a maximum ambient temperature of 105 °C.

Their main applications are as DC link capacitors in frequency converters for drives and  inverters for photovoltaic installations as well as industrial power  supplies.  Delivery is in 14 weeks with pricing starting in $2 depending on  quantity.

Main  applications are for DC link capacitors in  frequency converters for drives and inverters for photovoltaic installations as  well as in industrial power supplies.


  • Useful life of 5000 hrs  and 8000 hrs, respectively
  • Low thermal  resistances and reduced ESR values
  • High ripple current  capability

Part Number: B43545

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