Power Electronics

Tantalum Polymer Capacitors Support Lead-free Reflow

AVX has developed a low-profile tantalum solid electrolytic chip capacitor with a conductive polymer electrode that meets the “lead-free 3 × 260°C reflow” requirements. Designated the T case, TCJ Series, these low-profile tantalum capacitors use patented technology to offer lower ESR, safer nonignition failure mode and better capacitance retention as compared to other polymer devices and conventional MnO2 electrode capacitors, all in a 1.2-mm profile.

“Existing competitor parts have been unable to reach the industry “lead-free” reflow solder specifications of 3 × 260°C,” said Danny Lane, AVX product manager. “Our new TCJ Polymer family leaves them all in the cold by also guaranteeing the ESR specification values after reflow soldering. We’re the only chip manufacturer that will do that.”

The TCJ Series is suitable for power management systems with operating temperatures up to 125°C. The parts offer a capacitance range of 10 µF to 100 µF. Pricing for the TCJ Series starts at $0.45 in quantities of 10,000.

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