AVX achieves supercapacitor CV values with high temp TWD HTMC series

AVX introduces the High Temperature Max Cap series with capacitance values from 25 mF to 50 mF.

AVX offers a new series of axial leaded, hermetically sealed, wet electrolytic tantalum capacitors that achieve supercapacitor CV values in 125°C environments. Using high CV tantalum powders and a wet tantalum design, the TWD High Temp Max Cap (HTMC) series capacitors feature electrical and mechanical stability, achieving extended operational lifetimes of up to 10,000 hours at 85°C, at rated voltage. Combined with high capacitance values spanning 25 mF to 50 mF and a wide operating temperature range spanning -55° to +125°C, the extended endurance of the capacitor series makes them suitable for use in DC hold-up and low frequency pulse circuitry in avionics, defense, specialized industrial, and other high reliability applications that require high capacitance at higher temperatures and for longer lifetimes than EDLC (electric double-layer capacitor) supercapacitor technologies can currently deliver.

“The high CV tantalum powders used to develop our new TWD HTMC series allow us to achieve extremely high capacitance values well within the supercapacitor range, and the hermetic packaging provides high mechanical stability that enables their use in a variety of high temperature, high reliability, and long life applications,” said Chris Reynolds, technical marketing manager, AVX.

Packaged in T4 axial leaded cases, TWD HTMC Series capacitors are currently available rated for 50mF, 6.3V and 25mF, 10V, -55°C to +125°C, and 10,000 hours at 85°C and rated voltage. Additionally, a third rating of 150mF, 2.5V, -55°C to +125°C, and 2,000 hours at 85°C and rated voltage is in active development. TWD HTMC Series capacitors are available with a ±10% and ±20% capacitance tolerance, with and without an insulating sleeve, and with either Sn/Pb (60/40) plated or pure matte tin terminations. The series is also lead-free reflow compatible and RoHS compliant, and is suitable for automatic mounting and soldering. Lead time for the series is 14 weeks.

For more information, visit http://www.avx.com/products/tantalum/wet-tantalum/dcultramax/ for the product datasheet and catalog, relevant technical papers, information about military and aerospace specifications and packaging, and modeling software. For all other inquiries, including design possibilities that extend beyond those contained in the product datasheet, please visit www.avx.com, call 864-967-2150, or write to One AVX Boulevard, Fountain Inn, S.C. 29644.