Littelfuse, Inc. announced the launch of the Pxxx0S3H SIDACtor Protection Thyristor Series, the industry’s first 2 kA surge protection component in a DO-214AB (SMC) package. This compact solution offers robust defense against severe transient events while enabling product miniaturization—ideal for next-generation power and energy designs. The Pxxx0S3H Series is purpose-built for AC and DC power lines in […]
Thyristors
Thyristors deliver 2 kA surge protection in compact DO-214AB package
Littelfuse, Inc. has launched the Pxxx0S3G-A SIDACtor Protection Thyristor Series, featuring 2 kA surge protection in a compact DO-214AB (SMC) package. The new devices enable product miniaturization while maintaining protection against severe overvoltage transients in harsh environments, including onboard chargers, EV charging stations, industrial automation power supplies, and solar inverters. The Pxxx0S3G-A Series provides high […]
Thyristors provide high surge-current overvoltage protection in compact package
The new Pxxx0S3N SIDACtor Protection Thyristor Series safeguards exposed interfaces in industrial and ICT applications, including RS-485 data interfaces and ac/dc power supplies. Providing equipment in harsh environments with increased protection from severe overvoltage transients assists designers in complying with regulatory requirements. Available in a compact, DO-214AB (SMC) package, the Pxxx0S3N SIDACtor series is designed […]
How do phase control, bidirectional, and bypass thyristors work?
Thyristors are four-layer semiconductor switches with alternating layers of P- and N-type materials. While all thyristors share the same basic structure, the details of their implementation and packaging can be modified to meet the needs of specific applications. This FAQ reviews basic phase control thyristor (PCT) operation, then looks at the use of bidirectional controlled […]
How does a silicon controlled rectifier work?
A silicon controlled rectifier (SCR) is a four-layer power semiconductor device. The term ‘silicon controlled rectifier’ was coined by General Electric when SCRs were first introduced in 1957. Like rectifiers, SCRs are unidirectional devices. Today, SCRs are recognized as a type of thyristor. Other types of thyristors, such as triacs, are inherently bidirectional. This FAQ […]
Thyristors provide high surge current overvoltage protection in compact package
Littelfuse, Inc. announced the new Pxxx0S3N SIDACtor Protection Thyristor Series, which safeguards exposed interfaces in industrial and ICT applications, including RS-485 data interfaces and AC/DC power supplies. Providing equipment in harsh environments with increased protection from severe overvoltage transients assists designers in complying with regulatory requirements. Available in a compact, DO-214AB (SMC) package, the Pxxx0S3N SIDACtor series is […]
Thyristors provide 3-kA surge protection with low thermal accumulation
Littelfuse, Inc. announced the new Pxxx0S3N SIDACtor Protection Thyristor Series, which safeguards exposed interfaces in industrial and ICT applications, including RS-485 data interfaces and AC/DC power supplies. Providing equipment in harsh environments with increased protection from severe overvoltage transients assists designers in complying with regulatory requirements. Available in a compact, DO-214AB (SMC) package, the Pxxx0S3N SIDACtor series is […]
