OP550A,PHOTOTRNSISTR NPN 935NM SIDELOOK
OP550B,PHOTOTRNSISTR NPN 935NM SIDELOOK
OP550C,PHOTOTRNSISTR NPN 935NM SIDELOOK
OP550D,PHOTOTRANS SILICON NPN SIDE LOOK
OP552A,PHOTOTRANS SILICON NPN SIDE LOOK
OP552B,PHOTOTRANS SILICON NPN SIDE LOOK
OP552C,PHOTOTRANS SILICON NPN SIDE LOOK
OP555A,PHOTOTRANS SILICON NPN SIDE LOOK
