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For the BA2903Y-C, 2901Y-C, BA2903Y-M, and 2901Y-M comparators, the guaranteed operating temperature for -C and -M products is the same at 125C, so what's the difference?
-C and -M are not differentiated by temperature but by application. -C is designed for sets involved in vehicle travel control systems (running/turning/stopping) and advanced driver support systems while -M products are intended for car audio/navigation, door locks, AC, display, and communications systems.