which mosfet most suitable for my project?

Discussion in 'The Projects Forum' started by ngkyew, Mar 8, 2010.

  1. ngkyew

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    Mar 7, 2010
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  2. R!f@@

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    I believe this will do just fine FDPF5N50T
     
  3. SgtWookie

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    A 500v MOSFET for an 80v application? That's going to waste a good bit of power. Besides, that MOSFET is only rated for Id=2.5A; you really should double (or more) Id requirements.

    Here's a better match:
    http://www.fairchildsemi.com/pf/FD/FDS2582.html
    Vdss=150, Id=4.5A, Rds(on)=66m, Qg=11nC

    Similar part, different package, higher Id (21A), higher Qg (19nC)
    http://www.fairchildsemi.com/pf/FD/FDD2582.html
    This 2nd part is physically larger, so it can handle more power dissipation. The gate charge (Qg) is really quite low for the Vdss, Id, and Rds(on) ratings in both of these MOSFETs.
     
  4. R!f@@

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    Hey Sgt. not to disagree with you or any thing OK.
    Your mosfet is a SMD device and we donno if the OP can do it.
    Mine is a standard TO220 package, which are small but easy to handle.
    I think he can experiment with more easily.
     
  5. shortbus

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  6. ngkyew

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    hi R!f, i can't find the datasheet for the component that you listed, anyway thanks for helping.
     
  7. ngkyew

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    Mar 7, 2010
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    hi sgt, erm.. can you help me in choosing a SOT type mosfet? thanks anyway
     
  8. ngkyew

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  9. R!f@@

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    Funny !! I chose that from the list u posted :confused:
     
  10. SgtWookie

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