Components

Polymer Tantalum Chip Capacitors with ESR Down to 7mΩ

Vishay Intertechnology, Inc. today announced that the company has extended 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 9mΩ down to 7mΩ, with values to 6mΩ in development.

The devices are optimized for power management, battery decoupling, and energy storage in computers, servers, network infrastructure equipment, solid state drives, and wireless transceivers.

Previously reserved for larger case sizes, the single-digit ESR values of the capacitors released today are 3mΩ to 5mΩ lower than those typically found in D case devices. The results are reduced voltage drops, better frequency response, and higher ripple current ratings up to 5.67A IRMS, which reduces the number of capacitors required on the PCB. In addition to saving board space, the D case’s low 3.1mm profile enables the design of thinner end products.

Offered in the compact J, P, A, B, T (low-profile B — 1.2mm max.), D, V, and Z case sizes, the T55 series features a wide capacitance range from 3.3µF to 1000µF over voltage ratings from 2.5V to 63V, and a capacitance tolerance of ±20%.

Operating over a temperature range of -55°C to +105°C, the capacitors provide low internal resistance for enhanced charge and discharge characteristics. Featuring lead (Pb)-free terminations, the T55 series is RoHS-compliant, halogen-free, and Vishay Green. The devices are compatible with high volume automatic pick and place equipment and offer a Moisture Sensitivity Level (MSL) of 3.

Samples and production quantities of the new single-digit ESR capacitors are available now, with lead times of 14 to 16 weeks. Pricing for U.S. delivery starts at $1.00 per piece.

Vishay Intertechnology Inc.
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