LTC1272-5ACN#PBF LTC1272-5ACS LTC1272-5ACSW LTC1272-5ACSW#PBF LTC1272-5ACSW#TR LTC1272-5ACSW#TRPBF LTC1272-5BCS LTC1272-5BCSW#PBF LTC1272-5CCN LTC1272-5CCN#PBF