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    MOSFET Transistor replacement....

    Ah, so being lead free doesn't really affect it at all except being lead free. Well my solder isn't lead free and I doubt this amplifier is either. I'm using silver bearing solder. And no, I'm not like my gf where every car that is blue looks the same lol. I think all the images I was seeing...
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    MOSFET Transistor replacement....

    Ya, I'm not one of those that are lazy and don't make use of Google :P I looked it up but they all a looked the same lol. Thank you for the info. So I definitely have the TO-220 since the center lead isn't cut and there's a hole in the tab. Does it matter if I get the PBF or not?
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    MOSFET Transistor replacement....

    Thank you MrEE. That clarifies what the different extra numbers are. Steve, I can take a picture of it but I left it at work. It is exactly how you described it though. The three leads (G, D, S) out the bottom of a black epoxy square with a metal tab on the back that extends upwards with a...
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    MOSFET Transistor replacement....

    Ok I did some digging and from what I'm understanding the L in the model number just stands for low profile. Still not sure what the difference is between the IRF640NPBF-ND and the IRF640N-ND.
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    MOSFET Transistor replacement....

    I'm in the USA. Texas to be more specific. I clicked the link you posted. What is the difference between the IRF640NPBF-ND, IRF640NLPBF-ND, IRF640N-ND and the IRF640NL-ND? From the looks of it all the specs are the same but the packaging is different? The only numbers I see on the ones I pulled...
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    MOSFET Transistor replacement....

    Sorry, its a bit late and I didn't explain thoroughly. I replaced the one on the power side with one from the audio side and left the three audio ones out of the amplifier to see if it would turn on. So out of the six I desoldered, two were bad and I put three back in. From my understanding it...
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    MOSFET Transistor replacement....

    I have a car audio amplifier that would go straight to protect when powered up. I have gone through all the different components that would cause this and found two MOSFET's shorted. Seeing how these are ran in parallel I actually needed to replace 6 of them. I replaced three that were on the...
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