某晶闸管的正向阻断重复峰值电压为745V，反向重复峰值电压为825V,该晶闸管的额定电压应为（）。

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SQL Error: select id,body,options from ***_enewstiku where sourceid='32648' and id < 2595946 and id<>'2595946' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='32648' and id > 2595946 and id<>'2595946' order by id asc limit 5