Jack White -- lead singer of the White Stripes -- has been hit with a restraining order ... after his estranged wife told a judge she fears the rocker is DANGEROUS and could cause her harm.
Karen Elson obtained the restraining order in Tennessee in July -- claiming White has an explosive and violent temper ... and has berated her in emails loaded with profanity.
In the legal docs, Elson -- a model and singer -- says she fears for her own safety ... AND the safety of the couple's two young children.
Jack and Karen were married in 2005 in a canoe in the middle of the Amazon river in Brazil ... only to separate in 2011. Karen finally filed for divorce in 2012.
So far, no comment from White's camp.
Jack White's Estranged Wife:
He Scares Me
I Need a Restraining Order
8/1/2013 4:55 PM PDT BY TMZ STAFF
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