[sdiy] TDA2030, 2040 & 2050 discontinued.. and counterfeit parts..

[Jean-Pierre Desrochers]

Thanks !

-----Message d'origine-----
De : James Grenert [mailto:grenert at gmail.com] 
Envoyé : 24 octobre 2018 21:14
À : Jean-Pierre Desrochers
Cc : SYNTH DIY
Objet : Re: [sdiy] TDA2030, 2040 & 2050 discontinued.. and counterfeit parts..

BG Micro seems to have them.  They are a reputable source in my experience.
https://www.bgmicro.com/AUD1075.aspx


On 10/24/18, Jean-Pierre Desrochers <jpdesroc at oricom.ca> wrote:
> Hi everybody,
>
> I need to replace a dead TDA2030 power amp in a small keyboard I have.
>
> The problem is that this IC is obsolete so I ordered some from an eBay
> Chinese seller..
>
> Fortunately I had some originals in one of my parts bin to compare with
>
> the new Chinese to come..
>
> Then the TDA2030's were delivered.. tested them.. Hmmmm.. bad news..
>
> The genuine STMicroelectronics delivered clean 1khz sinewave on a 8 ohms
> load.
>
> The Chinese ones showed bad crossover distortion with 3rd harmonics  with
> some oscillations
>
> on the same load. I contacted the seller for a refund.
>
> Looking Pentawatt cases of an original and the chinese's I saw differences.
>
> See both cases here:
>
> http://www.arcenson.com/public/TDA20xx.jpg
>
>
>
> eBay sellers don't always show the real part package they will deliver to
> you
>
> so I'm a bit scary to go there.
>
>
>
> Does anybody have a good source for genuine TDA2030, 2040 and 2050 ??
>
> Thanks.
>
>
>
>