High-temp Tantalum Supercapacitors Handle 175 °C

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wet tantalum
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AVX Wet Tantalum Supercapacitors improved for harsh, high-temperature applications upto 175°C

High-temperature wet tantalum products are primarily designed for use in down-hole drilling equipment and avionic engine control. AVX has increased the maximum operating temperature for its TWD High-Temp Max-Cap (HTMC) Series axial leaded, hermetically sealed wet tantalum capacitors from 125°C to 175°C.

The company says that the newly improved HTMC Series provides the highest DC capacitance & the highest operating temperature of any T4-case capacitor on the market, plus exceptional electrical & mechanical stability for extended lifetimes of up to 10,000 hours.

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Currently available in two ratings, 50mF/6.3V and 25mF/10V, the series achieves high capacitance values previously only offered by supercapacitors and delivers exceptional electrical and mechanical stability for extended lifetimes of up to 10,000 hours at +105°C and rated voltage and, for the 25mF/10V rating, up to 2,000 hours at +175°C and derated voltage.

TWD HTMC Series capacitors are now rated for operating temperatures extending from -55°C to 175°C and are available in two ratings: 50mF/6.3V and 25mF/10V, with a ±10% and ±20% capacitance tolerance, in a single case size: DSCC size T4/AVX size “E”, with or without an insulating sleeve, and with either Sn/Pb (60/40) plated or pure matte tin terminations.

The cases measure 26.97mm (+0.79mm or -0.41mm) in length, 10.31mm in diameter with an insulating sleeve or 9.52mm (±0.41mm) in diameter without, and have 57.15mm (±6.35mm) terminals.

The capacitors are also RoHS compliant, lead-free compatible, and suitable for use with automatic mounting and soldering processes. Lead-time for the series is 12 weeks.

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Applications for TWD HTMC Series capacitors:

  • High-temperature oil and gas market applications, including down-hole drilling equipment, that requires proven high-reliability performance at temperatures in excess of 125°C.
  • The series is also well suited for use in DC hold-up and low-frequency pulse circuitry in avionics, defense, specialized industrial, and other high-reliability applications

For more information, click here.

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