STMicroelectronics TN4015H silicon-controlled rectifiers (SCRs)

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High-temperature silicon-controlled rectifiers (SCRs) from STMicroelectronics allow manufacturers of voltage regulators, inrush current limiters for switch-mode power supplies, motor-control circuits and industrial solid-state relays to improve the reliability of their applications and/or reduce costs by using smaller heatsinks.

Operating with junction temperatures of up to 150°C, the TN4015H SCRs offer on-state RMS current ratings of 40 A, extending and complementing the existing 12–20 A product range. They are designed to offer tight control of the gate triggering current, leading to enhanced reproducibility on the customers’ assembly lines with corresponding improvements in the reliability of the end products, according to the company.

The SCRs are more gate-sensitive compared with previous generations, while delivering good electrical noise immunity (dV/dt up to 1000 V/μs). Other key technical features include: 600 V blocking voltage; high turn-on current rise (dI/dt = 100 A/μs); and ECOPACK 2 packaging for compliance with safety regulations and faster certification.

Addressing a wide range of industrial and two- and three-wheel vehicle applications, the product is available in various power packages, with UL 1557 certified insulated packages withstanding up to 2500 VRMS.

For more information: www.st.com/tn4015h-nb.