Low-ESR polymer capacitors increase volumetric efficiency

07-12-2016 | Vishay | Passives

Vishay’s new series of vPolyTan multi-anode polymer surface-mount chip capacitors deliver increased volumetric efficiency for computing, telecom, and industrial applications. Combining polymer tantalum technology with Vishay's patented multi-array packaging (MAP), the T59 series delivers what is claimed to be the industry's highest capacitance density while maintaining best-in-class ESR.

Available in the molded EE (7343-43) case code, the capacitors released today offer up to 25% better volumetric efficiency than similar devices, which allows for higher capacitance and voltage ratings. For example, their capacitance of 150µF at 30V is three times higher in capacitance than the closest competing device. In addition, the advanced packaging of the series ensures ultra-low ESR from 25mohm to 150mohm at +25C and 100kHz.

The devices offer capacitance from 15µF to 470µF, with capacitance tolerance of ±20%, and overvoltage ratings up to 75V. By replacing multiple lower-capacitance devices, the capacitors reduce component counts to save PCB space and lower costs in solid-state drives, networking equipment, and motherboards. In these products, the capacitors are intended for decoupling, smoothing, filtering, and energy storage applications.

The series features ripple current from 1.3A to 3.1A at 100kHz and an operating temperature range of -55C to +105C. RoHS-compliant, halogen-free, and Vishay Green, the devices offer both lead (Pb)-free and tin/lead (Sn/Pb) wraparound terminations and are available in tape-and-reel packaging per the EIA-481 standard. The capacitors are 100% surge current tested to ensure robust performance in high-inrush-current applications.

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