574502B04800GHEATSINK TO-220 VERT MNT W/TAB|AAVID THERMALLOY|Lead free|RoHS Mixed 574502B03700 HCF4502BM1IC INVRTR/BUFF HEX N-INV 16SOIC|STMICROELECTRONICS|Lead free|RoHS Compliant CD4502BNSR