RIR Power Develops Indigenous 25 kV High Voltage Thyristor Switch

28 Mar 2026 CW Team

At the core of the system is a 125 millimetre silicon-controlled rectifier (SCR) capable of blocking voltages up to eight kV, a component developed in India for the first time. Multiple SCR units are integrated in series to achieve the high-voltage performance required for precise control over extremely high current pulses. The vertically integrated design and capacitor discharge topology enable controlled release of stored energy for short, high-energy pulses.

The product was rigorously tested and qualified at the company’s high-voltage laboratory within its manufacturing facility in Halol, Gujarat, demonstrating robust performance and reliability under demanding conditions. RIR Power indicates that the qualification process validated thermal performance, switching reliability and repeatability of pulse characteristics. The company states that the indigenous capability will strengthen supply chain resilience and support national initiatives such as Make in India and Atmanirbhar Bharat.

The capacitor discharge switch is intended for deployment across a range of critical applications including defence systems that require controlled high-current pulses, advanced medical equipment and precision directed energy technologies. RIR Power, listed on the Bombay Stock Exchange under scrip code 517035, said the development contributes to building a self-reliant electronics manufacturing ecosystem and to advancing India’s journey towards greater economic self-reliance. The company also framed the achievement as consistent with its broader role in high-power semiconductor solutions and energy management systems.

RIR Power Electronics Limited has announced the successful development of a cutting-edge 25 kilovolt (kV) – 120 kiloampere (kA) capacitor discharge vertically integrated semiconductor switch, marking a significant milestone for India’s high-power electronics capabilities. The development was disclosed in a corporate filing and positions the company as the first in the country to deliver an indigenously developed 25 kV high-voltage thyristor switch designed for advanced pulse power applications. The innovation is intended to bolster domestic manufacturing expertise and reduce reliance on imports while enhancing global competitiveness. At the core of the system is a 125 millimetre silicon-controlled rectifier (SCR) capable of blocking voltages up to eight kV, a component developed in India for the first time. Multiple SCR units are integrated in series to achieve the high-voltage performance required for precise control over extremely high current pulses. The vertically integrated design and capacitor discharge topology enable controlled release of stored energy for short, high-energy pulses. The product was rigorously tested and qualified at the company’s high-voltage laboratory within its manufacturing facility in Halol, Gujarat, demonstrating robust performance and reliability under demanding conditions. RIR Power indicates that the qualification process validated thermal performance, switching reliability and repeatability of pulse characteristics. The company states that the indigenous capability will strengthen supply chain resilience and support national initiatives such as Make in India and Atmanirbhar Bharat. The capacitor discharge switch is intended for deployment across a range of critical applications including defence systems that require controlled high-current pulses, advanced medical equipment and precision directed energy technologies. RIR Power, listed on the Bombay Stock Exchange under scrip code 517035, said the development contributes to building a self-reliant electronics manufacturing ecosystem and to advancing India’s journey towards greater economic self-reliance. The company also framed the achievement as consistent with its broader role in high-power semiconductor solutions and energy management systems.

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