High-speed fuse of the Littlefuse PSR series at Rutronik

Power semiconductor components optimally protected: Due to the ongoing miniaturization of electronic components with a simultaneous increase in power, power semiconductors in particular are more sensitive to overcurrent conditions and voltage pulses. Littelfuse‘s square case PSR series provides high-speed protection for exactly this application. The Littlefuse PSR series is available at Rutronik UK.

The PSR series is specifically designed to protect power semiconductor devices such as diodes, triacs, IGBTs, SCRs, MOSFETs and other semiconductor elements used for power converter and processing accessories. The extremely fast circuit protection of this Littlefuse product line thus meets the requirements of modern power converters.


Voltage pulse protection for a wide range of applications

These components are used in variable frequency drives, inverters, UPS, rectifiers and soft starters, which are found, for example, in the pulp and paper industry, cranes and heavy-duty accessories, the manufacturing industry or wastewater treatment plants. However, battery protection applications in energy storage systems, charging stations for e-vehicles or heating and power supply systems also benefit from high-speed fusing.


Further advantages:

  • Best DC class performance.
  • Extremely current limiting and excellent cycling capability
  • Direct bus-bar mount design
  • Designed for low watt loss
  • Global certification (cURus, CCC, IEC) and class-aR performance according to IEC60269-4
  • Optional: visual microswitch indication for blown fuses


further details www.rutronik.com


About Rutronik

Rutronik Elektronische Bauelemente GmbH is one of the leading distributors in Europe. With over 80 local offices around the globe, the company has a successful international network. The broadline distributor supplies semiconductors, passive and electromechanical components as well as boards, storage, displays & wireless products. The company‘s primary target markets are the automotive, medical, industrial, home appliance, energy and lighting industries.

The ranges RUTRONIK EMBEDDED, RUTRONIK SMART, RUTRONIK POWER and RUTRONIK AUTOMOTIVE provide customers with specific products and services in groups tailored to the respective applications. Expert technical support for product development and design-in, individual logistics and supply chain management solutions as well as comprehensive services complete its scope of performance.

Founded in 1973 by Helmut Rudel in Ispringen, Germany, the company employs more than 1,900 people worldwide and achieved sales of around 1.08 billion euros in the 2019 financial year.