Vishay Thyristor SCR Panel Mount 1200 V, 90 A, 120 mA Gate Trigger Current, Surge Current 1.87 kA, VS-T90RIA120

Vishay VS-T90RIA120 thyristor SCR is a high-quality power semiconductor designed for industrial and commercial electronic applications requiring precise phase control. This device features a panel mount D-55 package that incorporates an electrically isolated metal base, allowing ease of installation and thermal management. It is rated for a repetitive peak reverse voltage of 1200 V and an average on-state current of 90 A, making it suitable for medium power switching tasks.

The VS-T90RIA120 is engineered to withstand surge currents up to 1.87 kA, ensuring durability under high transient loads. It requires a gate trigger current of 120 mA and a gate trigger voltage of no more than 2.5 V, enabling controlled activation. The maximum holding current of 200 mA allows stable operation once conduction is initiated. It operates reliably across a wide temperature range from -40°C to 125°C, accommodating harsh industrial environments.

This thyristor is widely used in battery chargers, welding machines, electroplating equipment, and regulated power supplies where phase angle control improves efficiency and control precision. Its usage extends to temperature and motor speed control circuits in various manufacturing and HVAC systems.

The device is UL E78996 approved for safety compliance and contains beryllium oxide for thermal conduction, requiring careful handling to avoid damage or hazardous exposure. This Thyristor supports high surge currents of 1.87 kA, enhancing robustness.

Its panel mount format with three pins facilitates easy integration in electronic modules. Operates over a wide temperature range from -40°C to 125°C suitable for industrial applications. Electrically isolated metal base aids heat dissipation and insulation.

Primarily used in electronic power control applications such as welding, battery charging, and plating. The maximum gate trigger current of 120 mA ensures precise switching control. Peak on-state voltage of 1.55 V minimizes power loss in conduction.

Repetitive peak reverse voltage rating is 1200 V for high voltage applications. Contains beryllium oxide which necessitates careful handling and disposal. UL certification confirms compliance with international safety standards.

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