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High-voltage tantalum capacitors
18 August 2010, Passive Components
AVX has developed a surface mount polymer tantalum capacitor that features a nominal capacitance rating of 10 μF and rated voltage of 35 V in the C case size (6,0 x 3,2 x 2,6 mm).
The TCJ series is well suited for applications such as DC/DC converters supplying power for LCD TVs, base stations, rectifiers, switching hubs, routers and line filters, as well as LED power drivers in PC monitors and LED TVs. The 35 V TCJ capacitors also exhibit low ESR and require de-rating by only 20% (up to 85°C), enabling them to be used at 28 V for additional applications. The capacitors feature a halogen-free, environmentally friendly design.
Polymer tantalum capacitors offer several benefits, including capability for high power output circuits as they work at a high line voltage and may also withstand high ripple currents due to polymer tantalum low-ESR technology. The cathode layer is made of a conductive polymer and there are no oxygen molecules, which can be easily released making capacitors more resistant to overloading and ignition, thereby enabling low voltage derating. With an operating temperature range of -55°C to +105°C, TCJ series capacitors have undergone ageing and screening processes to assure high reliability and achieve a low failure rate. |
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