I realize I probably need to re-state my requirements for a 'jellybean'=20 fet, to be more concise: Vdss of at least 60V, higher would be better. I use these for level=20 shifting on occasion for power mosfets running at up to 60V. Current is not a big thing. At most I'll be pulling down a LED or two. =20 Perhaps a 50mA relay or something similar. But nothing extremely big. Almost always these will be used with 3.3V logic on the gate. The problem I think I'm really having is the 60V requirement - nothing=20 seems to be much 'better' than a 7002 at 3.3V when you isolate it to=20 fets with at least 60V Vdss - especially if you factor in the price=20 difference. A 2n7002 should 'handle' somewhere around 100 or 200ma at=20 3.3V - which I think is sufficient. But of course wouldn't mind better=20 - but can't find anything which honestly puts me out of the pricing of=20 what I'd consider 'jellybean' - aka single digits US cents in production=20 quantities of the thousands. -forrest On 3/11/2011 2:41 AM, RussellMc wrote: > A good way to fix a 2N7000 family part is to tie gate to drain and apply > 230 VAC across drain to source. Failing that a good flat faced mallet, h= ard > d\surface and due force will suffice. > > This was recommended in December. > Dwayne i think > > http://www.irf.com/product-info/datasheets/data/irf7416pbf.pdf > > > I alway= s > say - try and find CET Semi parts. > We can get them in NZ so the US SHOULD be able to manage > > Look at the CETSemi CES xxxx series here (Parametric search) and go and > demand your supplier stocks them > > > http://www.apexelec.co.nz/htm/diodes_rectifying.php?search=3D0&rspage=3D0= &ckey=3D1016100000 > > CES2310. > 30 V part. > Stunningly good. > > All MOSFET N Channel > > http://www.apexelec.co.nz/htm/key_search.php?ckey=3D1014111000&skey=3De&c= sot=3D0&type=3Dup&page=3D1&search=3D1&rspage=3D0 > > > MOSFET N-Channel ROHS In-stock > > http://www.apexelec.co.nz/htm/key_search.php?ckey=3D1014111000&skey=3De&c= sot=3D0&type=3Dup&page=3D1&search=3D1&rspage=3D0&islv=3D1&rh=3D1&ro=3D1 > > 19 items > 7002 - NZ 3.6 cents MOQ 3000 > Multiply by 0.75 for $US - say 2.7 cents US. > > BUT then you'd have to eat it. > > CES2302 > 7.5 cents NZ MOQ 3000 > http://www.apexelec.co.nz/specs/mosfets_n_channel/S2302.pdf > 20V 3A > 82 milliohm Rdson typical at Vgs =3D 2.5V > > CES2312 > 8c NZ > 6c US > 20V, 4.5A SOT23 > http://www.apexelec.co.nz/specs/mosfets_n_channel/S2312.pdf > 40 milliohm typ at 2.5V Vgs > Vth 0.5 min, 1.2 max > Look at Fig 1 ! :-) > > CES2314 > 8c NZ, 6c US MOQ 3000 > http://www.apexelec.co.nz/specs/mosfets_n_channel/S2314.pdf > 30V 4A > Vth creeping up BUT look at FIG 1 > About 100 milliohm at 1A at 2V gate typ > 0.2V drop at 2A at 2V gate. > > Oters statt to get dearer. > > ALL the above are in stock with MOQ 3000. > > Time to buy a reel and split it ? > > 6 cents US at 3000 =3D $US180 for 3000. > $6/100 ! > > > > Russell > > > > > > > > On 11 March 2011 19:38, Forrest W Christian wrote: > >> Time for me to actually pick a few 'jellybean' parts. >> >> The main one I am having problems coming up with is a good jellybean >> MOSFET. N Channel, Probably at least 60V, current isn't all that >> important - enough to drive a LED or two. Probably in a SOT-23 package >> or similar. Oh and 3.3V logic compatible. >> >> I'd just go for the 2N7002's since the 2N7000's have treated me so well >> (even at 3.3V), and they're like definitely jellybean pricing - less >> than 3 cents at reel quantities.. But I can definitely see in the >> charts that 3.3V doesn't seem to be quite enough to really switch them >> fully on. >> >> Other MOSFETS in the same price range all seem be basically similar >> creatures - usable thresholds, but pretty high full-on voltages. So >> far, I'd just live with the performance of the 7002's - a few ohms at >> 3.3V isn't horrid for me, and very widely available. >> >> Which part did I miss that fixes the percieved issues with the 2n7002's, >> and is at most a few cents more at reel quantities? >> >> And if anyone would like to chime in on other favorite jellybean semi's >> such as bipolars or P-Channels, etc, that would be great. >> >> -forrest >> >> >> >> >> >> -- >> http://www.piclist.com PIC/SX FAQ& list archive >> View/change your membership options at >> http://mailman.mit.edu/mailman/listinfo/piclist >> --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .