Special Transistors?

Mar 20, 2007 1 Replies

Please suggest me the use of transistors like PDTA124EU (two resistors inside it, one between the emitter and base and one at the base) and MOSFETs like NTJS3151P.



I used them in my project where an MCU was driving the transistor directly, with the transistor acting like a switch. The two resistors turn the digital signal into a correctly biased/limited/etc signal, so as to not cause problems for the MCU. Otherwise, I'd have to at least put a limiter resistor between the MCU and a standard transistor.

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