Acquired Electronics360

Aerospace

Tantalum Capacitor Withstands High Temps

07 June 2016

AVX Corporation 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 achieve 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 TWD HTMC Series capacitors makes them ideal 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.

TWD High Temp Max Cap (HTMC) Series capacitors achieve extended operational lifetimes up to 10,000 hours at 85° C. TWD High Temp Max Cap (HTMC) Series capacitors achieve extended operational lifetimes up to 10,000 hours at 85° C.

Packaged in T4 axial leaded cases, TWD HTMC Series capacitors are currently available rated for 50 mF, 6.3 V and 25 mF, 10 V, -55° C to +125° C, and 10,000 hours at 85° C and rated voltage. Additionally, a third rating of 150 mF, 2.5 V, -55° C to +125° C, and 2,000 hours at 85° C 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 suited for automatic mounting and soldering. Lead time for the series is 14 weeks.



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