BHEL commenced manufacture of power semiconductor devices in the year 1978, to cater to the growing requirements of power electronic systems and controls in India. The semiconductor devices from BHEL, consisting of thyristors, diodes and power modules, have earned a reputation for high reliability and quality and are also exported to other countries.

These devices are manufactured in a state-of-the-art fabrication facility having diffusion, alloying, encapsulation and testing equipment and this centre is the first in India to have been accredited with ISO 9001 and ISO 14000 certification among semiconductor product segment. BHEL-make devices are widely used in a variety of applications such as High Current Rectifiers, UPS & Battery Chargers, Industrial & Traction Equipment, High Speed Exciters of Turbo-generators and HVDC transmission systems.

BHEL is presently geared to design, develop manufacturing processes and quality procedures, and to supply special-purpose power semiconductor devices & semi-processed chips according to customised requirements, in addition to the standard range of products. As a testimony to its capability, BHEL has won the ELCINA award thrice from the Electronic Components Industries Association of India and has also been recognised as the "Centre for Development of Technology for Power Semiconductor Devices" by Department of Electronics (Presently Ministry of Information Technology), Government of India