Wet tantalum capacitor is DLA approved for avionics

25th March 2015

Vishay

Nat Bowers

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Datasheet

Approved to Defense Logistics Agency (DLA) drawing 15005, a tantalum-cased wet tantalum capacitor with a glass-to-tantalum hermetic seal has been introduced by Vishay. For avionics and aerospace systems, the device is claimed to be the industry's first wet tantalum capacitor approved to DLA 15005 to combine a reverse voltage of 1.5V at +85°C with improved vibration (sine: 50g; random: 27.7g) capability and thermal shock of 300 cycles.

The capacitor offers all the advantages of Vishay's SuperTan series devices while providing improved reverse voltage for higher performance and enhanced vibration and thermal shock capabilities for increased reliability. The DLA 15005 electrolytic capacitor is optimised for timing, filtering, energy hold-up and pulse power applications in power supplies for space and avionics equipment.

The device is initially offered in the axial T4 case size, with current voltage of 75V, high capacitance of 1000µF and capacitance tolerance of ±10 and ±20% standard at 120Hz and +25°C. The development of additional ratings and case sizes is underway. The DLA 15005 operates over a temperature range from -55 to +85°C (or to +125°C with voltage derating) and provides low maximum ESR of 0.50Ω at 120Hz and +25°C.

The capacitor features standard tin/lead (Pb) terminations, with RoHS-compliant 100% tin terminations available. Samples and production quantities of the DLA 15005 are available now, with lead times of 10 weeks for larger orders.