TDK Introduces Hybrid Polymer Capacitors With Significantly Enhanced Ripple Current Capability

     TDK Group introduces the B40640B*/B40740B* series of polymer hybrid capacitors with significantly enhanced ripple current capability. Using hybrid polymer technology, the new components have a 29% increase in ripple current capability to 35 A (20 kHz, 125 °C) over previous models, are rated at 63 V, have a capacitance range of 390 µF to 720 µF, and have ultra-high Low Equivalent Series Resistance (ESR), 3.9 mΩ ESR at 20 kHz and 20 °C for a 16 mm x 30 mm case size (diameter x height) capacitor, even at ultra-low operating temperature of -40 °C , and the ESR is only 5.4 mΩ.

     The elements of the new series are robust and can withstand high vibration environments of 60 g and operating temperatures of up to 150 °C. Thanks to a special structural design and efficient heat sink performance, the new components achieve ultra-low thermal resistance. In addition, the axial design ensures a stable connection to the heat sink over its entire service life. The new components are available in sizes from 14 mm x 25 mm to 16 mm x 30 mm (diameter x height), depending on the capacitance value. All components are RoHS compliant and available in axial lead (B40640B*) and solder star (B40740B*), with and without PET sleeve options.

     Rugged construction and excellent electrical parameters make the new series of capacitors ideal for 48V on-board power applications.