PLATE HEAT EXCHANGER

A plate heat exchanger for a refrigerant circuit, specifically for a refrigerant circuit in a vehicle, having channel plates with channel-forming cut-outs, of which at least two channel plates are in each case arranged into channel plate stacks, forming at least one channel, wherein first channel plate stacks for a first fluid and second channel plate stacks for a second fluid are stacked alternatingly between two cover plates with separating plates arranged therebetween to separate opposing channels, at least one of which cover plates has fluid connections for the first and/or the second fluid, wherein the channel-forming cut-out of in each case at least one channel plate of the first and second channel plate stacks has at least one stabilizing bridge oriented transversely to the channel.