PDF datasheet, 322 KB, from Vishay Siliconix for the SiR474DP, an N-channel MOSFET in the PowerPAK SO-8 package. It lists maximum drain voltage, continuous current, on-resistance, gate charge and the footprint dimensions. Transistors of this size often sit in notebook CPU and GPU core converters. During repair, the pin diagram shows where to probe for a drain-to-source short, and the ratings tell you how close an alternative part needs to be.
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