P6SMB18ADIODE TVS 18V 600W UNIDIR 5% SMD|LITTELFUSE INC|Lead Mixed|RoHS Compliant P6SMB18A P6SMB18AT3G P6SMB18ADIODE TVS 18V 600W UNIDIR 5% SMD|LITTELFUSE INC (VA)|Lead Mixed|RoHS Compliant P6SMB18A