In a narrow sense, BOM list has already included the details of PCB components and their functions, such as relevant part number, description, brand name, quantity, etc. You’d better check the BOM list carefully.
BTW, if you want to know more information of PCB components, you can also try to search it via those famous and professional components platforms like “Digikey”, “Mouser” and so on. I believe, you will get what you want finally.