CONTENTS

 1     Scope        
 2     References             
 3     Definitions
        3.1     Terms defined elsewhere      
        3.2     Terms defined in this Recommendation          
 4     Abbreviations, acronyms and symbols          
 5     Storage conditions 
 6     Electrical requirements      
        6.1     resistance, R
        6.2     hold current, Ih          
        6.3     trip current, It            
        6.4     time-to-trip, ttrip      
        6.5     resistance 1 h after tripping, R1 for polymer PTC thermistors  
        6.6     reset voltage, Vreset for ECL    
       ̀6.7     impulse resistance, Rimp for ceramic PTC thermistors   
        6.8     Impulse voltage withstand     
        6.9     AC power fault          
       6.10     Impulse endurance test (life test)      
       6.11     AC endurance test (PTC thermistor) (life test)             
 7     Test methods         
        7.1     resistance, R
        7.2     hold current, Ih          
        7.3     trip current, It            
        7.4     time-to-trip, ttrip        
        7.5     resistance 1 h after tripping, R1, for polymer PTC thermistor   
        7.6     reset voltage, Vreset for ECL    
        7.7     impulse resistance, Rimp at Vimp for ceramic PTC thermistors    
        7.8     Impulse voltage withstand     
        7.9     AC power fault tests 
       7.10     Impulse endurance test (life test)      
       7.11     AC endurance test (life test) 
 8     Environment tests  
        8.1     Robustness of terminations   
        8.2     Solderability 
        8.3     Resistance to soldering heat  
        8.4     Vibration      
        8.5     Bump           
        8.6     Rapid changes of temperature           
        8.7     Climatic sequence    
        8.8     Damp heat, steady state        
        8.9     Fire hazard   
       8.10     Solvent resistance of marking            
       8.11     Component solvent resistance           
 9     Informative characteristics
        9.1     Hold current variation with temperature        
        9.2     Trip-time variation with fault current value for PTC thermistor OCPs   
        9.3     Resistance recovery after a trip event for PPTC thermistor OCPs          
10     Identification        
       10.1     Marking      
       10.2     Documentation        
11     Ordering information        
Bibliography