From: Clint Jay <cjaysharp@gmail.com>
To: Microcontroller discussion list - Public. <piclist@mit.edu>
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Date: Sun, 26 Jul 2020 04:59:03 -0700
Subject: Re: [EE]:: Your DS18B20 temperature sensor is likely a fake,
	counterfeit, clone...
Thread-Topic: [EE]:: Your DS18B20 temperature sensor is likely a fake,
	counterfeit, clone...
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Yes, I've even built a few but that was for restoration purposes.

On Sun, 26 Jul 2020 at 07:28, Manu Abraham <abraham.manu@gmail.com> wrote:

> Has someone found a smaller electrolytic capacitor in a large can
> electrolytic capacitor ?
> Getting more difficult to identify between fakes and the real ones, as
> days pass!
>
> On Sun, Jul 26, 2020 at 10:26 AM Bob Blick <bobblick@outlook.com> wrote:
> >
> > I look forward to his purchases of Burr-Brown opamps, Omron solid state
> relays, Honeywell hall-effect sensors, and Sanken power transistors. Or
> perhaps he's already learned enough :)
> >
> > Friendly regards, Bob
> >
> > ________________________________________
> > From: piclist-bounces@mit.edu <piclist-bounces@mit.edu> on behalf of
> RussellMc
> > Sent: Saturday, July 25, 2020 5:19 AM
> > To: Microcontroller discussion list - Public.
> > Cc: ApptechNZ; RossGMail;
> > Subject: [EE]:: Your DS18B20 temperature sensor is likely a fake,
> counterfeit,  clone...
> >
> > https://github.com/cpetrich/counterfeit_DS18B20
> >
> > ... unless you bought the chips directly from Maxim Integrated
> > <https://www.maximintegrated.com/en/products/sensors/DS18B20.html> (or
> > Dallas Semiconductor in the old days), an authorized distributor
> > <
> https://www.maximintegrated.com/en/aboutus/contact-us/distributor-offices=
..html
> >
> > (DigiKey,
> > RS, Farnell, Mouser, etc.), or a big retailer, or you took exceptionall=
y
> > good care purchasing waterproofed DS18B20 probes. We bought over 1000
> > "waterproof" probes or bare chips from more than 70 different vendors o=
n
> > ebay, AliExpress, and online stores -big and small- in 2019. All of the
> > probes bought on ebay and AliExpress contained counterfeit DS18B20
> sensors,
> > and almost all sensors bought on those two sites were counterfeit.
> >
> > Author: Chris Petrich, 25 July 2020. License: CC BY. Source:
> > https://github.com/cpetrich/counterfeit_DS18B20/
> >
> > (Sensor information based on sensors or probes ordered well into 2020
> > rather than in or around 2019 are marked "*(2020)*".)
> >
> >
> > --
> > http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive
> > View/change your membership options at
> > http://mailman.mit.edu/mailman/listinfo/piclist
> --
> http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive
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> http://mailman.mit.edu/mailman/listinfo/piclist
>


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Clint. M0UAW IO83

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