In electrolytic capacitors – the most important components of integrated circuits in personal computers, mobile phones, automotive electronics, and cameras.

As a component of superhard alloys for the manufacture of metal-cutting and drilling tools.

As a material for the production of miniature housings for cardiac pacemakers and surgical instruments.

In the manufacture of critical components for jet engines and rockets, afterburners and other products to protect spacecraft from radiation.

For plating equipment in factories producing sulfuric acid, ammonia and other chemically aggressive compounds.

Glass containing tantalum pentoxide is used in nuclear technology to absorb gamma radiation.