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Tool/software:
Can you tell me the lead materials for SN54AC14-SP so I can calculate the thermal resistance to the board?
On the product page, in the "Ordering & quality" table, click on the link in the "Quality, reliability & packaging information" column, which goes to ti.com/quality-reliability-packaging-download/report?opn=5962-8762401VCA (depending on the OPN). The material content declaration says that the lead frame comprises mostly iron and nickel.