Supercapacitor CV values in high temperature tanatalum caps

June 01, 2016 // By Graham Prophet
Featuring capacitance values spanning 25 mF to 50 mF, electrical and mechanical stability, and extended lifetimes of up to 10,000 hours, the TWD HTMC series is suited for avionics, defence, and industrial applications that require high capacitance at higher temperatures and for longer lifetimes than EDLC supercapacitor technologies can deliver.

AVX has released a series of axial leaded, hermetically sealed wet electrolytic tantalum capacitors that achieve supercapacitor CV values in high temperature environments up to 125°C. Utilizing high CV tantalum powders and a well-established wet tantalum design, TWD High Temp Max Cap (HTMC) Series capacitors deliver electrical and mechanical stability, achieving extended operational lifetimes of up to 10,000 hours at 85°C, rated voltage. Combined with extremely high capacitance values spanning 25 mF to 50 mF and a wide operating temperature range spanning -55°C to +125°C, the extended endurance of the new TWD HTMC Series capacitors suits them for use in DC hold-up and low frequency pulse circuitry

 

Packaged in T4 axial leaded cases, TWD HTMC Series capacitors are currently available rated for 50 mF, 6.3V and 25 mF, 10V, -55°C to +125°C, and 10,000 hours at 85°C and rated voltage. Additionally, a third rating of 150 mF, 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,.

 

AVX; www.avx.com/products/tantalum/wet-tantalum/dcultramax/