Thyristors - SCR (Silicon-Controlled Rectifier)

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Featuring immunity to surges and transients in static states and commutations, our silicon-controlled rectifiers (SCR), also known as thyristors, are ideal for single- and three-phase power line networks, even in harsh environments up to 150°C. Thyristors (SCR) belong to our STPOWER family.

In addition to AC, DC and capacitive ignitor circuits, these unidirectional switches are found in high-voltage industrial circuits as well as automotive equipment and all other segments where electromechanical relays are not operative or unreliable.

Whenever a bidirectional switch function is needed at 20 A and more, a back-to-back SCR configuration will work with no compromise on the function/immunity.

An even simpler bidirectional AC power line switch is also available.

Featuring immunity to surges and transients in static states and commutations, ST silicon-controlled rectifiers (SCR), or thyristors, are ideal for single- and three-phase power line networks, even in harsh environments up to 150°C.

ST offers a broad range of thyristors (SCRs) with RMS current varying from 0.25 A for sensitive applications to 130 A for high-power applications.

These unidirectional switches are used in various industrial applications, along with AEC-Q101 qualified thyristors for automotive environments.

Thyristors are also used in segments where electromechanical relays are not viable or reliable. They can completely replace relays or improve their reliability and control through hybrid solutions.

When bidirectional functionality is required, back-to-back SCR configurations perform with no compromise to the function and immunity of applications.

An even simpler bidirectional AC power line switch is also available.

Applications

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Telecom, servers & UPS

Product types

Logic-level gate

Logic-level gate thyristors are designed to be driven directly by low current levels, making them easy to integrate into modern digital circuits. They offer fast turn-on and optimized performance, making them suitable for low-power applications requiring simple gate drive functionality.

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Standard 150°C

Standard 150°C series thyristors are rated to operate reliably at junction temperatures up to 150°C, providing a balanced combination of thermal robustness and electrical performance.

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High Temperature 150°C

High Temperature 150°C thyristors are optimized for harsh thermal environments, offering enhanced heat dissipation capabilities and maintaining stable performance at 150°C.

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Featured Videos

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Limit inrush current in your AC-DC power supply with STEVAL-SCR002V1

The STEVAL-SCR002V1 introduces a simple and innovative AC-DC front-end circuit that allows the designer to perform an inrush current limitation in any converter with input rectifier bridge topologies.

Watch the video (6:29)

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