(after wiping the drool off my chin and the tears from my eyes)  We use 
a very sharp pair of pruning shears and get good clean cuts.  The ones 
called 'anvil pruners' seem to work best for this purpose.

Dave

Jan-Erik Soderholm wrote:

>Martin K wrote :
>
>  
>
>>Jan-Erik Soderholm wrote:
>>    
>>
>>>Hi.
>>>I've just got a batch of surplus components (mostly power MOSFET's)
>>>that I'm going to sell. Each tube has 50 (TO220) MOSFET's and I
>>>thought of cutting them into lots of 25 or 10.
>>>
>>>Now, how do you cut tube (the clear plastic types) ?
>>>
>>>A hot kanthal ("resistor") wire ?
>>>
>>>A knife or similar will leave rough edges, as far as I've seen.
>>>
>>>Best Regards,
>>>Jan-Erik.
>>>
>>>
>>>
>>>      
>>>
>>A hack (metal) saw or a metal bandsaw on high speed is what
>>I would recommend. You aren't going to get professional
>>results unless you cut  them with a shear which is what the
>>manufacturer uses.
>>    
>>
>
>Hi.
>I forgot to day that I'm hoping to find a method where the mosfet's
>can stay in the tube, that's why I thought about the hot kanthal wire
>method. I have to experiment a little with that. It's also easier that
>way to ge the right lenght, since the components themself will be the
>reference...
>Or maybe it's easier to just sell them in lots of 50 (or whatever
>makes up a full tube...) :-)
>
>  
>
>>What kind of MOSFETs?
>>    
>>
>
>:-)
>
>This isn't [AD], but since you asked politely... :-)
>
>At least the following types (and aprox quantities) :
>
>IRF540, N-chan 100V / 28A (a couple of 100s)
>IRF9640, P-chan -200V / -11A (a couple of 100s)
>IRFB9N60A, N-chan 600V / 9.2A (aprox 550)
>Intersil 75643P, N-chan 100V / 75A (aprox 21.000)
>IXYS IXFX55N50, N-chan 500V / 55A (Digikey: $23.80/ea. Aprox 1.100)
>
>All TO220 (IXYS : "Plus247")
>Data codes normaly 01 or 02.
>
>If there is any interest from the piclist members, I might
>come up with a "list-price", so to speak. Or simply make
>me an offer (amount from 1 and up). Data codes normaly 01-02.
>
>Now over to cutting the tubes... :-)
>
>Jan-Erik.
>
>
>
>  
>


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