CONTENTS

 1     Scope        
 2     References             
 3     Definitions
 4     Abbreviations and acronyms           
 5     Storage conditions 
 6     Electrical requirements      
        6.1     Varistor voltage        
        6.2     Maximum a.c. (d.c.) continuous operating voltage      
        6.3     Leakage current d.c. 
        6.4     Leakage current a.c. 
        6.5     Capacitance 
        6.6     Clamping voltage      
        6.7     Maximum discharge current 
        6.8     ESD impulse test       
        6.9     Rated dissipation (impulse life)          
       6.10     Rated impulse energy           
       6.11     Impulse durability    
       6.12     Endurance at maximum operating temperature         
       6.13     TOV withstanding capability 
       6.14     Insulation resistance (for insulated MOV only)            
       6.15     Voltage proof (for insulated MOV only)         
 7     Test methods         
        7.1     Varistor voltage        
        7.2     Maximum continuous a.c. (d.c.) voltage          
        7.3     Leakage current d.c. 
        7.4     Leakage current a.c. 
        7.5     Capacitance 
        7.6     Clamping voltage      
        7.7     Maximum discharge current 
        7.8     ESD impulse test (for SMD type MOV only)     
        7.9     Rated dissipation (impulse life)          
       7.10     Rated impulse energy           
       7.11     Impulse durability    
       7.12     Endurance at maximum operating temperature         
       7.13     TOV withstanding    
       7.14     Insulation resistance
       7.15     Voltage proof           
 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     V-I characteristic      
        9.2     Current peak de-rating curve
        9.3     Volt-ampere characteristics of low field region           
10     Identification        
       10.1     Marking      
       10.2     Documentation        
11     Ordering information        
Annex A – Impulses used in this Recommendation    
        A.1     Definition of T₁/T₂ impulse    
        A.2     Tolerances for T₁/T₂ impulse (Figures A.1 and A.2)      
        A.3     Tolerances for rectangular impulse (Figure A.3)          
        A.4     ESD discharge current impulse (Figure A.4)    
Appendix I – Mounting method for measurement of SMD type    
        I.1               Recommended mounting method           
        I.2               Wave soldering method
        I.3               Reflow soldering method           
Appendix II – Response of MOV to 8/20 impulse current and clamping voltage test    
       II.1     Double peaks on the voltage waveform           
       II.2     Instantaneous volt-ampere characteristic        
       II.3     Voltage limiting characteristics           
       II.4     Methods for avoiding interference during clamping voltage measurement        
Bibliography