PRG series
PTC thermistors
SMD type
for overcurrent protection:
Resettable fuse

PRG Series
The PRG series (Resettable fuse) of PTC thermistors for overcurrent protection device features rapid operation to protect the circuit as an overcurrent is generated, for example due to a short circuit. These products automatically return to their initial state when the overcurrent is eliminated and can be used repeatedly.
Use of ceramics material means high reliability and quick protection after short circuits, allowing the customer to make equipment safer and maintenance-free. 
Compared with organic PTC elements and chip resistors having the same characteristics, the PRG series features higher withstand voltage and higher power capacity, making it possible to reduce the chip size. This helps the customer downsize equipment.

     Application Note(875KB)
     Presentation(459KB)

   Technical Article

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  Basic Knowledge    How to Select   
Part Numbering  
Glossary 
  PRG21BC Series  :0805(2012)Size、Curie Point 90℃
  PRG18BC Series  :0603(1608)Size、Curie Point 90℃
  PRG15BC Series  :0402(1005)Size、Curie Point 90℃
  PRG18BB Series  :0603(1608)Size、Curie Point 100℃
  PRG21AR,BB Series  :0805(2012)Size、Curie Point 100℃,120℃
  PRG Series for Automotive  : for Automotive

SubTitleIconNo01 PRG21BC Series

SubTitleIconNo02 PRG18BC Series

SubTitleIconNo03 PRG15BC Series

SubTitleIconNo04 PRG18BB Series

SubTitleIconNo05 PRG21AR,BB Series

SubTitleIconNo06 PRG Series (For Automotive)