Vishay automotive grade miniature aluminium capacitors

17th February 2023

Vishay

Harry Fowle

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Vishay Intertechnology has introduced a new series of low-impedance Automotive Grade miniature aluminium electrolytic capacitors that deliver higher performance in smaller case sizes than previous-generation solutions. The Vishay BCcomponents 172 RLX series combines high ripple currents up to 4.9A, high-temperature operation to +105°C, and a long life of 10,000h in 14 case sizes ranging from 10x12mm to 18x40mm.

Compared to previous-generation solutions, the AEC-Q200 qualified capacitors released today offer lower impedance, higher capacitance for a given case size and voltage, and up to 54% higher ripple current at the same capacitance-voltage (CV) rating in smaller case sizes. For example, while previous-generation solutions offer a ripple current of 1100mA at a CV rating of 1000F/10V in the 10x16mm case size, the 172 RLX series delivers 1700mA in the 10x12mm case size. This allows designers to utilise fewer components, increasing design flexibility and saving board space.

Featuring radial leads and a cylindrical aluminium case with pressure relief, insulated with a blue sleeve, the 172 RLX series offers rated voltages up to 50V, capacitance from 150-15,000µF, and low impedance down to 0.011Ω at +20°C. The devices 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, DC/DC converters, motor drives, and control units for industrial, automotive, telecommunications, audio-video, and electronic data processing (EDP) applications.