Latest tantalum capacitors deliver reliability and performance

Two new high-performance Vishay tantalum capacitor series are now available from TTI Europe. Designed to deliver maximum capacitance and reliability in the smallest packages for demanding, space-constrained applications, Vishay’s T25 Series offers low ESR and surge current testing options to MIL-PRF-55365. The T97 Series is the Hi-Rel COTS equivalent to the commercial 597D series, patterned after MIL-PRF-55365 and gives military and industrial customers a broader choice of capacitance values, voltage ranges and case sizes than MIL-Spec offerings. Vishay’s TANTAMOUNT T25 Hi-rel COTS Series is a solid tantalum surface-mount capacitor with a capacitance range of 22µF to 330µF, supplied in a hermetically sealed metal case. Highly reliable with burn-in at minimum rated DC voltage for a minimum of 40 hours, it also features low ESR - down to 180mohm at +25C and 100kHz. Voltage rating is 16VDC to 50VDC. Designed for avionics applications, the T25 Series is availalbe in case size D, with lead (Pb)-free teminations. Tin/lead terminations are currently under development. The T97 Series of solid tantalum chip capacitors offers high reliability and ultra-low ESR down to 0.015? in a surface-mount, conformal coated case. Designed for applications including power management, defence and commercial avionics, radar systems and rugggedised electronics, the devices offer state-of-the-art CV in a wide range of case codes. Capacitance range is from 10µF to 1500µF and voltage rating 4VDC to 75VDC. Devices have an operating temperature range of -55C to +125C (above 85degC, voltage derating is required). Surge current testing per MIL-PRF-55365 is available as an option, as is Weibull failure rate grading. The T97 Series is supplied with tin/lead (Sn/Pb) terminations as standard, with 100% tin terminations available as an option, says the company.