Diotec Semiconductor AG

In today's modern vehicles, small and robust transistors are required to interface the vehicle's computer system with the outside world by controlling relays, LED lights and other sound and display systems. A reliable automotive-grade NPN switching transistor such as the MMBT3904-AQ from Diotec, with a collector current of 200mA and a collector-emitter voltage of 40V, is the device of choice for such control applications. Supplied in a SOT-23 package, it fits easily into the tight spaces required in any modern vehicle.