DIMENSION
                    
                    
                    
                     ELECTRICAL CHARACTERISTICS
                    
	
		| Part No. | 
		Varistor Voltage | 
		Maximum Allowable Voltage | 
		Maximum Clamping Voltage     | 
		Withstanding Surge Current | 
		Rated Wattage | 
		Energy | 
		Typical Capacitance | 
		Datasheet Download | 
	
	
		V1mA 
                                (V) | 
		AC 
                                (V) | 
		DC 
                                (V) | 
		V10A (V) | 
		Imax 
                                (8/20μs) 
                                (A) | 
		Vn(40 times) 
                                (1.2/50μs & 8/20μs) 
                                (A) | 
		(W) | 
		(10/1000μs)(J) | 
		1kHz 
                                (PF) | 
	
                    
                    
                    
                        
                            
                                
                                        
                                            | HEL 7D431KH | 
                                            430(387~473) | 
                                            275 | 
                                            350 | 
                                            710 | 
                                            1750 | 
                                            2kV/1kA | 
                                            0.25 | 
                                            46 | 
                                            100 | 
                                             | 
                                        
                                    
                                        
                                            | HEL 7D471KH | 
                                            470(423~517) | 
                                            300 | 
                                            385 | 
                                            775 | 
                                            1750 | 
                                            2kV/1kA | 
                                            0.25 | 
                                            49 | 
                                            90 | 
                                             | 
                                        
                                    
                                        
                                            | HEL 7D511KH | 
                                            510(459~561) | 
                                            320 | 
                                            418 | 
                                            842 | 
                                            1750 | 
                                            2kV/1kA | 
                                            0.25 | 
                                            54 | 
                                            80 | 
                                             | 
                                        
                                    
                                        
                                            | HEL 7D561KH | 
                                            560(504~616) | 
                                            350 | 
                                            460 | 
                                            920 | 
                                            1750 | 
                                            2kV/1kA | 
                                            0.25 | 
                                            55 | 
                                            75 | 
                                             | 
                                        
                                    
                                        
                                            | HEL 7D621KH | 
                                            620(558~682) | 
                                            385 | 
                                            505 | 
                                            1025 | 
                                            1750 | 
                                            2kV/1kA | 
                                            0.25 | 
                                            59 | 
                                            70 | 
                                             | 
                                        
                                    
                                        
                                            | HEL 7D681KH | 
                                            680(612~748) | 
                                            420 | 
                                            560 | 
                                            1120 | 
                                            1750 | 
                                            2kV/1kA | 
                                            0.25 | 
                                            62 | 
                                            65 | 
                                             | 
                                        
                                    
                                        
                                            | HEL 7D751KH | 
                                            750(675~825) | 
                                            460 | 
                                            615 | 
                                            1240 | 
                                            1750 | 
                                            2kV/1kA | 
                                            0.25 | 
                                            66 | 
                                            61 | 
                                             | 
                                        
                                    
                                        
                                            | HEL 7D781KH | 
                                            780(702~858) | 
                                            485 | 
                                            640 | 
                                            1290 | 
                                            1750 | 
                                            2kV/1kA | 
                                            0.25 | 
                                            68 | 
                                            54 | 
                                             | 
                                        
                                    
                                        
                                            | HEL 7D821KH | 
                                            820(738~902) | 
                                            510 | 
                                            670 | 
                                            1355 | 
                                            1750 | 
                                            2kV/1kA | 
                                            0.25 | 
                                            71 | 
                                            48 | 
                                             | 
                                        
                                    
                            
                         
                     
                    
                        
                    
                    
                        
                             Classification according to 8/20μs Surge current
                            
                                
                         
                        
                             Safety regulation certification and Corresponding models
                            
                                
                            
                         
                         Derating curves & V/I characteristics
                     
                 
                
             
            
                
            
         
     
    
    
    
    
    
    
    
    
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