Electronic Products & Technology

Thyristors provide surge current overvoltage protection in compact package

Stephen Law   

Circuit Protection Electronics circuit protection Thyristor

LITTELFUSE Pxxx0S3N SIDACtor Protection Thyristor Series safeguards exposed interfaces in industrial and ICT applications, including RS-485 data interfaces and ac-dc power supplies. Available in a compact, DO-214AB (SMC) package, devices provide 3kA (8/20) high-power surge protection with low thermal accumulation during long-term overvoltage events. A vital advantage of the device is that the switching voltage (VS) is much lower than Gas Discharge Tubes (GDT), and the on-state voltage (VT) is much lower than Metal Oxide Varistors (MOV) and Transient Voltage Suppressor (TVS) Diodes.

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