[sdiy] Choosing FETS

[mark verbos]

Dan,

I don't think the SMT ones are going anywhere. look at MMBFJ201

Mark




On Dec 26, 2012, at 1:52 PM, David G Dixon wrote:

> Are the surface-mount equivalents disappearing?  We use 5485 in some
> Intellijel modules, and the surface-mounted MMBF5485 is available in
> tens-of-thousands quantities from various sources.  The through-hole
> equivalent 2N5485 is available in hundreds at a few places.  Perhaps only
> the through-hole ones are going bye-bye...?
> 
> 
>> with J201's Bf245's and even MPF102's all hitting end of life 
>> or obsolete, I am now completely confused about what FET to 
>> use instead in future designs.
>> 
>> 
>> In OLD designs, I can often find (for a price) remaining 
>> stocks, but in new designs I need a good, versatile FET that 
>> can be used for various applications (vcos, sample and holds, 
>> switches, etc)
>> 
>> 
>> Does anyone have any recommendations on specific part numbers 
>> that ARE NOT being axed?
>> 
>> Are FETS vanishing altogether or is it just coincidence that 
>> the FETS that are disappearing are the ones many SDIY designs use?
> 
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