Part Number: 129BH (National semiconductor) Part Number: 129BH883B (Ne) Part Number: 129BH883C (Nationl) Part Number: 129BH883CL (Ne) Part Number: 129BHL (Ne) Part Number: 129BK (Intersil) Part Number: 129BL (Ne) Part Number: 129BP (Ne) Part Number: 129BPDSIL (Ne) Part Number: 129BT (Ne) Part Number: 129C0 (Ne) Part Number: 129C002-2 (Insert) Part Number: 129C003-2 (Connector) Part Number: 129C01100 (No description)