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							                        This standard specifies the requirements for test methods of rectifier equipment for high-voltage electrostatic precipitators. Thi
                            
							                        This standard specifies the parameter symbols and basic symbols and superscripts of power semiconductor devices. This standard app
                            
							                        Replaced by JB/T 5843-2005 JB/T 5843-1991 Connectors for power semiconductor devices JB/T5843-1991 Standard download decompression
                            
							                        Replaced by JB/T 5842-2005 JB/T 5842-1991 Die locating ring for power semiconductor devices JB/T5842-1991 Standard download decomp
                            
							                        This standard specifies the limit values, characteristic values and inspection rules and basis of tube-case rated high voltage r
                            
							                        JB/T 5840-1991 JA series bipolar power transistor for switches above 50A JB/T5840-1991 Standard download decompression password: w
                            
							                        This standard applies to reverse blocking triode thyristors with average on-state current of 200A, 500A, 1000A, off-state repetiti
                            
							                        This standard applies to cavity-encapsulated reverse blocking triode thyristors with a case-rated current of 1250A, 1600A, 2000A a