EPC2308

https://www.digikey.com/en/products/detail/epc/epc2308engrt/16784421

I recall some EPC suit saying that they would never sell a packaged
part.

Am 24.01.23 um 23:00 schrieb John Larkin:
> https://www.digikey.com/en/products/detail/epc/epc2308engrt/16784421
> 
> I recall some EPC suit saying that they would never sell a packaged
> part.

At least, that's not much of a package.  :-)

I once used one of their smaller parts 0.9 mm * 0.9 mm
in a chopper amplifier to take advantage of the small
charge injection. It turned out to be easily soldered.
They call that thingie a power transistor.

I used the Altium part decals that EPC proposed. They have the
solder mask on part of the pads. JLCPCB asked back if I really
wanted it that way. I said yes and it worked nicely.

Gerhard

On Tue, 24 Jan 2023 23:40:06 +0100, Gerhard Hoffmann <dk4xp@arcor.de>
wrote:

>Am 24.01.23 um 23:00 schrieb John Larkin:
>> https://www.digikey.com/en/products/detail/epc/epc2308engrt/16784421
>> 
>> I recall some EPC suit saying that they would never sell a packaged
>> part.
>
>At least, that's not much of a package.  :-)
>
>I once used one of their smaller parts 0.9 mm * 0.9 mm
>in a chopper amplifier to take advantage of the small
>charge injection. It turned out to be easily soldered.
>They call that thingie a power transistor.
>
>I used the Altium part decals that EPC proposed. They have the
>solder mask on part of the pads. JLCPCB asked back if I really
>wanted it that way. I said yes and it worked nicely.
>
>Gerhard
>
>
>

I like the tiny 4-ball parts, like EPC2038. Their drain-gate
capacitance is about zero so you can do stuff that wouldn't work with
mosfets.

They recommend solder-mask-defined pads but that's not really
necessary; the worst aligned thing on a PCB is usually the mask.

https://www.dropbox.com/s/4jh47hyfj18e7ff/Bad_Chinese.jpg?raw=1

On Tue, 24 Jan 2023 14:00:30 -0800, John Larkin
<jlarkin@highlandSNIPMEtechnology.com> wrote:

>https://www.digikey.com/en/products/detail/epc/epc2308engrt/16784421
>
>I recall some EPC suit saying that they would never sell a packaged
>part.

'Sort of' responding to their sales team's feedback in Europe.

RL

onsdag den 25. januar 2023 kl. 00.42.02 UTC+1 skrev John Larkin:
> On Tue, 24 Jan 2023 23:40:06 +0100, Gerhard Hoffmann <dk...@arcor.de> 
> wrote:
> >Am 24.01.23 um 23:00 schrieb John Larkin: 
> >> https://www.digikey.com/en/products/detail/epc/epc2308engrt/16784421 
> >> 
> >> I recall some EPC suit saying that they would never sell a packaged 
> >> part. 
> > 
> >At least, that's not much of a package. :-) 
> > 
> >I once used one of their smaller parts 0.9 mm * 0.9 mm 
> >in a chopper amplifier to take advantage of the small 
> >charge injection. It turned out to be easily soldered. 
> >They call that thingie a power transistor. 
> > 
> >I used the Altium part decals that EPC proposed. They have the 
> >solder mask on part of the pads. JLCPCB asked back if I really 
> >wanted it that way. I said yes and it worked nicely. 
> > 
> >Gerhard 
> > 
> > 
> >
> I like the tiny 4-ball parts, like EPC2038. Their drain-gate 
> capacitance is about zero so you can do stuff that wouldn't work with 
> mosfets. 
> 
> They recommend solder-mask-defined pads but that's not really 
> necessary; the worst aligned thing on a PCB is usually the mask. 

as long as alignment is good enough that  the openings land on copper only  the scale should matter