全新SN7404NSR SN7404DG4 SN7403NS1 SN7402NG4 SN7401NE4

LM139AWGRQMLV X5649S14-2.7A SN7404DG4 SOP14

LM139DR X5649S14I-2.7 SN7404NSR LM139DG4 X5649S14I SOP14