Vishay Intertechnology extends its T55 series of vPolyTan surface-mount polymer tantalum molded chip capacitors with new devices in the D case (EIA 7343-31) size featuring single-digit ESR values from 9 mΩ down to 7 mΩ, with values to 6 mΩ in development. The devices comes in the compact J, P, A, B, T (low-profile B — 1.2 mm max), D, V, and Z case sizes. The single-digit ESR values of capacitors are 3 mΩ to 5 mΩ lower than those typically found in D case devices which were reserved for larger case sizes previously. This results in reduced voltage drops, better frequency response, and higher ripple current ratings up to 5.67 A IRMS. This further reduces the number of capacitors required on the PCB.
The T55 series capacitors offer a wide capacitance range from 3.3 µF to 1000 µF with capacitance tolerance of ± 20 % and ove voltage ratings from 2.5 V to 63 V. Also the D case’s low 3.1 mm profile of T55 series enables the design of thinner end products. The T55 series capacitors are optimized for battery decoupling, energy storage in computers, servers, network infrastructure equipment, power management, solid state drives, and wireless transceivers.
The devices operate in wide range of temperatures from -55 °C to +105 °C giving low internal resistance for enhanced charge and discharge characteristics. The device comes in lead (Pb)-free terminations and are RoHS-compliant, halogen-free, and Vishay Green. The T55 series devices feature a Moisture Sensitivity Level (MSL) of 3 and are compatible with high volume automatic pick and place equipment.
Samples and production quantities of the new T55 series single-digit ESR capacitors are available now, with lead times of 14 to 16 weeks from Vishay.