Space-saving solid tantalum capacitors target handheld electronics

Vishay has introduced a new series of vPolyTan solid tantalum surface-mount chip capacitors that delivers increased volumetric efficiency for handheld consumer electronics. Combining polymer tantalum technology with proprietary high-efficiency MicroTan? packaging, the T58 series achieves industry-best capacitance-voltage ratings in six moulded case codes, including 47µF-6.3V in the compact M0 (1608-10) case and 220µF-10V and 330µF-6.3V in the BB (3528-20). Leveraging patented MAP (multi-array packaging) assembly technology, the capacitors released today provide a 10 % improvement in space utilization compared with similar devices, saving PCB space and enabling the design of smaller and thinner end products, including smartphones, tablets, and ultra-thin laptops, in addition to wireless cards, network equipment, and audio amplifiers and pre-amplifiers. In these devices, T58 series capacitors are intended for decoupling, smoothing, filtering, and energy storage applications. The devices offer capacitance from 10µF to 330µF, with capacitance tolerance of ±20%, over voltage ratings from 4V to 25V in the MM (1608-09), M0 (1608-10), W9 (2012-09), A0 (3216-18), AA (3216-18), B0 (3528-10), and BB (3528-20) case codes. The capacitors feature low impedance, low ESR from 50mohm to 500mohm at +25C and 100kHz, and ripple current from 0.224A to 1.3A at 100kHz, and they operate over a temperature range of -55C to +105C with voltage derating above +85C. The rectangular moulded case encapsulation of the T58 series is ideal for high-volume PCB assembly, and its special lead (Pb)-free L-shaped facedown terminations offer better contact to the solder pad than traditional facedown-style terminations. RoHS-compliant, halogen-free, and Vishay Green, the devices feature a Moisture Sensitivity Level (MSL) of 3 and are available in tape-and-reel packaging per the EIA-481 standard. Samples and production quantities of the T58 series capacitors are available now, says the company.