<html xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:m="http://schemas.microsoft.com/office/2004/12/omml" xmlns="http://www.w3.org/TR/REC-html40"><head><meta http-equiv=Content-Type content="text/html; charset=utf-8"><meta name=Generator content="Microsoft Word 15 (filtered medium)"><!--[if !mso]><style>v\:* {behavior:url(#default#VML);}
o\:* {behavior:url(#default#VML);}
w\:* {behavior:url(#default#VML);}
.shape {behavior:url(#default#VML);}
</style><![endif]--><style><!--
/* Font Definitions */
@font-face
{font-family:"Cambria Math";
panose-1:2 4 5 3 5 4 6 3 2 4;}
@font-face
{font-family:Calibri;
panose-1:2 15 5 2 2 2 4 3 2 4;}
@font-face
{font-family:"Segoe UI";
panose-1:2 11 5 2 4 2 4 2 2 3;}
/* Style Definitions */
p.MsoNormal, li.MsoNormal, div.MsoNormal
{margin:0cm;
margin-bottom:.0001pt;
font-size:11.0pt;
font-family:"Calibri",sans-serif;}
h3
{mso-style-priority:9;
mso-style-link:"Nadpis 3 Char";
mso-margin-top-alt:auto;
margin-right:0cm;
mso-margin-bottom-alt:auto;
margin-left:0cm;
font-size:13.5pt;
font-family:"Calibri",sans-serif;}
a:link, span.MsoHyperlink
{mso-style-priority:99;
color:blue;
text-decoration:underline;}
span.Nadpis3Char
{mso-style-name:"Nadpis 3 Char";
mso-style-priority:9;
mso-style-link:"Nadpis 3";
font-family:"Calibri Light",sans-serif;
color:#1F3763;
mso-fareast-language:CS;}
span.StylE-mailovZprvy19
{mso-style-type:personal-reply;
font-family:"Segoe UI",sans-serif;
color:black;
font-weight:normal;
font-style:normal;}
.MsoChpDefault
{mso-style-type:export-only;
font-family:"Calibri",sans-serif;
mso-fareast-language:EN-US;}
@page WordSection1
{size:612.0pt 792.0pt;
margin:70.85pt 70.85pt 70.85pt 70.85pt;}
div.WordSection1
{page:WordSection1;}
--></style><!--[if gte mso 9]><xml>
<o:shapedefaults v:ext="edit" spidmax="1026" />
</xml><![endif]--><!--[if gte mso 9]><xml>
<o:shapelayout v:ext="edit">
<o:idmap v:ext="edit" data="1" />
</o:shapelayout></xml><![endif]--></head><body lang=CS link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Segoe UI",sans-serif;color:black;mso-fareast-language:EN-US'>Zdravím,<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Segoe UI",sans-serif;color:black;mso-fareast-language:EN-US'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Segoe UI",sans-serif;color:black;mso-fareast-language:EN-US'>jen bych to trochu doplnil – Vypadá to, že koupit originální součástku na Ali, BG, eBay apod. bude dnes docela problém. </span><span style='font-size:12.0pt;font-family:"Segoe UI Emoji",sans-serif;color:black;mso-fareast-language:EN-US'>😉</span><span style='font-size:12.0pt;font-family:"Segoe UI",sans-serif;color:black;mso-fareast-language:EN-US'><o:p></o:p></span></p><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Segoe UI",sans-serif;color:black;mso-fareast-language:EN-US'>Zatím se mi nestalo, tím netvrdím, že to tak nemůže být, že bych u Farnell, RS, TME, Digikey za posledních cca 10let (co si tak nějak pamatuji) nenarazil na „fake“. <o:p></o:p></span></p><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Segoe UI",sans-serif;color:black;mso-fareast-language:EN-US'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Segoe UI",sans-serif;color:black;mso-fareast-language:EN-US'>Kolega si z Ali pořídil hromadu DS18B20 na hraní domů a pokud si pamatuji, tak všechny lítaly +/- nějaké stupně a to byly položené na stole vedle sebe.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Segoe UI",sans-serif;color:black;mso-fareast-language:EN-US'>DS18B20 koupené z TME byly všechny na desetinu přesně – tak to asi něco znamená.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Segoe UI",sans-serif;color:black;mso-fareast-language:EN-US'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Segoe UI",sans-serif;color:black;mso-fareast-language:EN-US'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Segoe UI",sans-serif;color:black;mso-fareast-language:EN-US'>RK<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Segoe UI",sans-serif;color:black;mso-fareast-language:EN-US'><o:p> </o:p></span></p><div style='border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0cm 0cm 0cm'><p class=MsoNormal><b>From:</b> Hw-list <hw-list-bounces@list.hw.cz> <b>On Behalf Of </b>Jan Kuba<br><b>Sent:</b> Monday, April 20, 2020 10:02 AM<br><b>To:</b> HW-news <hw-list@list.hw.cz><br><b>Subject:</b> Re: falsovane DS18B20<o:p></o:p></p></div><p class=MsoNormal><o:p> </o:p></p><div><p class=MsoNormal>Já jsem po dlouhodobých testech narazil na podobný problém s SPF5189Z<o:p></o:p></p><div><p class=MsoNormal>Je to obvod předzesilovače a všechny hotové moduly z e-bay i Aliexpresu měly tenhle obvod falešný.<o:p></o:p></p></div><div><p class=MsoNormal>Sice to fungovalo, ale větší šum, malý zisk, 2x větší odběr...<o:p></o:p></p></div><div><p class=MsoNormal>Až když jsem vykuchal tenhle obvod z jednoho zařízení, začal preamp fungovat tak jak má.<o:p></o:p></p></div><div><p class=MsoNormal>Vypadá to, že koupit originální součástku bude dnes docela problém. <o:p></o:p></p><h3 style='margin:0cm;margin-bottom:.0001pt'><span style='font-size:36.0pt;font-family:"Arial",sans-serif;color:white'><o:p> </o:p></span></h3></div></div><div id=DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2><p class=MsoNormal><o:p> </o:p></p><table class=MsoNormalTable border=1 cellpadding=0 style='border:none;border-top:solid #D3D4DE 1.0pt'><tr><td width=55 style='width:41.25pt;border:none;padding:13.5pt .75pt .75pt .75pt'><p class=MsoNormal><a href="https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail" target="_blank"><span style='border:solid windowtext 1.0pt;padding:0cm;text-decoration:none'><img border=0 width=46 height=29 style='width:.4791in;height:.302in' id="obrázek_x0020_1" src="cid:image002.jpg@01D616FF.48F62210" alt="Obrázek byl odebrán odesílatelem."></span></a><o:p></o:p></p></td><td width=470 style='width:352.5pt;border:none;padding:12.75pt .75pt .75pt .75pt'><p class=MsoNormal style='line-height:13.5pt'><span style='font-size:10.0pt;font-family:"Arial",sans-serif;color:#41424E'>Bez virů. <a href="https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail" target="_blank"><span style='color:#4453EA'>www.avast.com</span></a> <o:p></o:p></span></p></td></tr></table></div><p class=MsoNormal><o:p> </o:p></p><div><div><p class=MsoNormal>ne 19. 4. 2020 v 16:59 odesílatel Jan Waclawek <<a href="mailto:konfera@efton.sk">konfera@efton.sk</a>> napsal:<o:p></o:p></p></div><blockquote style='border:none;border-left:solid #CCCCCC 1.0pt;padding:0cm 0cm 0cm 6.0pt;margin-left:4.8pt;margin-right:0cm'><p class=MsoNormal>All of the probes bought on ebay and AliExpress contained counterfeit<br>DS18B20 sensors, and almost all sensors bought on those two sites were<br>counterfeit.<br><br><a href="https://github.com/cpetrich/counterfeit_DS18B20" target="_blank">https://github.com/cpetrich/counterfeit_DS18B20</a><br><br>Nadherna praca, na ktoru ma upozornil nas kolega Jaromir na mikrozone<br>kecatku.<br><br>JW<br><br>_______________________________________________<br>HW-list mailing list - sponsored by <a href="http://www.HW.cz" target="_blank">www.HW.cz</a><br><a href="mailto:Hw-list@list.hw.cz" target="_blank">Hw-list@list.hw.cz</a><br><a href="http://list.hw.cz/mailman/listinfo/hw-list" target="_blank">http://list.hw.cz/mailman/listinfo/hw-list</a><o:p></o:p></p></blockquote></div></div></body></html>