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  1. #1
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    2N2907 Transistor Troubles

    Good day!
    I have associate degree semiconductor diode current supply circuit victimization 2N2907 transistors ( It's applications is here: https://www.hqew.net/news/news-33914 ) driven from a 595 register that may supply 35mA. this may provide ME 350mA of drive, however i would like a lot of like 940mA. can a P-channel MOSFET do this? i would like individual transistors, SMT is okay. I may support less then 940mA, however 350mA is just too very little. Please suggest a semiconductor device replacement that may provide ME a lot of drive. as an alternative suggest a awfully cheap replacement that may provide ME seven lines of ~940mA ( only 1 one used at a time ) switchable from logic levels ( +-35mA goop ).

    Thanks!

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  2. #2
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    Re: 2N2907 Transistor Troubles

    Hi,

    you tell a lot about 2N2907, but it seems you donīt want to use it anymore.

    and then there are a lot of currents: 35mA, 350mA 940mA...where I assume that the 940mA are your desired load current.
    But no information about the circuit, and no information about drive voltage and load voltage....is there a capacitor that needs to be charged or an inductor involved...

    So how can we help?

    can a P-channel MOSFET do this?
    Besides the 940mA we donīt know any requirement.

    So my answer is: Yes. There are a lot of P-ch MOSFETS that can drive 940mA of load.

    Thus my recommendation:
    *First decide your requirements.
    * then go to a MOSFET manufacturer or MOSFET distributor internet page and use their interactive selection guide to find a suitable MOSFET.

    Klaus
    Please donīt contact me via PM, because there is no time to respond to them. No friend requests. Thank you.



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