You can't infer how much the distributor makes from the fact that a product is subsidized.artag wrote:The STM32F4 is rather heavily subsidised. The distributors probably make about £9.96 on it.
It's very common for prototyping boards to be subsidized in order to promote use of the chip. For example you'll frequently find that the 1-off price of the featured device is higher than the 1-off price of the whole prototyping board, because the manufacturer applies high-volume device pricing to unit board sales instead of unit pricing, which clearly represents a subsidy.
Indeed, we're told that this is what happened with Raspberry Pi too, namely that Broadcom granted the Foundation a SoC price corresponding to much higher volume purchases than the mere 10k boards being made. Does this tell us how much the distributors are making on the deal? No. You can't infer that figure.
It is however reasonable to assume that the distributors are not making a loss after expenses, because that kind of thing leads to CEOs getting into hot water with shareholders. They're perfectly used to low profit margins though, because that is totally normal in the electronics industry. For components, every cent counts.