Vishay Intertechnology automotive grade vPolyTan polymer tantalum chip capacitors combine low ESR with high volumetric efficiency

Available in compact D and V case sizes, AEC-Q200 qualified devices offer equivalent series resistance (ESR) down to 40mOhm and high temperature operation to +125 degree C. Designed to deliver improved performance in high temperature, high humidity operating conditions, the AEC-Q200 qualified Vishay Polytech t51 series offers lower ESR, lower voltage derating and a benign failure mode while maintaining higher volumetric efficiency than traditional tantalum capacitors, claimed the company. In addition, these technological advantages, Vishay claimed, set this technology above multilayer ceramic chip capacitors (MLCC) and aluminium capacitors in a comparable capacitance range. 

Offered in the compact D (EIA 7343-31) and V (EIA 7343-20) case sizes, the devices offer a wide capacitance range from 6.8 microAF to 330 microAF over voltage ratings from 2.5V to 35V and a capacitance tolerance of ± 20 per cent. Featuring a highly conductive polymer cathode system, the capacitors provide low ESR from 120 mOhm down to 40 mOhm at +25 degree C. 

Featuring a robust design for harsh environments, T51 series devices offer high temperature operation to +125 degree – with voltage derating above +105 degree C – and a high temperature load time to 2,000 hours. Combined with ripple current to 2.37A, the capacitors are ideal for decoupling, smoothing and filtering in switch mode and point of load (POL) power supplies for automotive advanced driver-assistance systems (ADAS), infotainment and other in-vehicle electronic systems. 

Featuring lead (Pb)-free terminations, the T51 series is RoHS-compliant, halogen-free, and Vishay Green. 

Vishay manufactures one of the world’s largest portfolios of discrete semiconductors and passive electronic components that are essential to innovative designs in the automotive, industrial, computing, consumer, telecommunications, military, aerospace and medical markets. 

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