Aluminium capacitors increase design flexibility and save board space

The Optoelectronics group of Vishay Intertechnology today introduced a new series of low impedance, Automotive Grade miniature aluminium electrolytic capacitors that combine high ripple currents up to 3.36A with high-temperature operation to +125C and very long useful life of 6,000h at 125C.

Compared to previous-generation solutions, Vishay BCcomponents 190 RTL series capacitors offer lower impedance and 10% to 15% higher ripple current. This allows designers to utilise fewer components, increasing design flexibility and saving board space. Also, the AEC-Q200 qualified devices are available in smaller case sizes, ranging from 10mm x 12mm up to 18mm x 35mm.

Featuring radial leads and a cylindrical aluminium case with pressure relief, insulated with a blue sleeve, the series provides rated voltages up to 50V, capacitance from 100µF to 6800µF, and low maximum impedance down to 0.017Ohm. The capacitors are charge and discharge-proof.

As polarised aluminium electrolytic capacitors with a non-solid electrolyte, the RoHS-compliant devices are ideally suited for smoothing, filtering, and buffering in switch-mode power supplies and DC-DC converters for high temperature industrial, automotive, telecommunications, medical, and defence applications.