Mistake in datasheet? (Schottky diode BAR42)

[Paolo Filipov]

Posted on March 12, 2018 at 08:20

Hi everyone,

if You open AN926 Application note (pls see attached),

You will see a marking format for SOT package:

ZZZ W

Should not the year be marked? is not there a mistake in document?

I have a parts (pls see photo) from Arrow and their engineers can not answer this question.

Best regards and thank You

Paolo Filipov.

[Paolo Filipov]

Posted on March 13, 2018 at 08:42

Please someone help.

[Brian Kling]

Posted on March 13, 2018 at 09:57

extracting77

‌ we are trying to identify an internal resource to help, stay tuned!

[T J]

Posted on March 14, 2018 at 00:43

I cant read the marking, what does it read ? D01 E7 ?

E7 looks like 2015- week 7  manufacture date.

[T J]

Posted on March 14, 2018 at 01:20

it is a very old document, factories shut down and new ones appear,

the Laser cut TopMarks are different from every factory.

I wouldn't worry about the markings too much, but be very concerned where you bought the part.

I only use Arrow, Or Digikey, guaranteed to be original factory parts. not counterfeit

however, at the bottom of that document...

Contact information

If you have any questions concerning matters raised in this document, please contact STMicroelectronics at the following address:

https://community.st.com/external-link.jspa?url=http%3A%2F%2Fwww.st.com%2Fstonline%2Fdomains%2Fsupport%2Fcontact_support.htm

[Tesla DeLorean]

Posted on March 14, 2018 at 01:13

Would have taken a minute to crop and size the photo.

D81 E7

Would suggest E (Week 9-10) 2017 or 2007, assume the former

[Paolo Filipov]

Posted on March 14, 2018 at 07:47

Hi dear

Turvey.Clive.002

and dearT J,

thank You a lot for your help.

I think the same:

it can be

2015- week 7 and

it can be

(Week 9-10) 2017 or 2007

But there should bea document where we can find the date codes. I think it's common information and most of

manufacturers publish it.

And there isthe document (attached in my 1st message), yes it's old (2008) but I can not find another one. Therefore I ask ST engineers to help me.

Regards.

[Sisto Zànier]

Posted on March 15, 2018 at 16:12

Look attached image:

maybe useful this codebook?

________________ Attachments : smd-codebook.pdf : https://st--c.eu10.content.force.com/sfc/dist/version/download/?oid=00Db0000000YtG6&ids=0680X000006HxtF&d=%2Fa%2F0X0000000b1t%2FwvqqpAuxSEB1vNE1_5tpr90RtdBZWFHj9BgG87O5EHc&asPdf=false

[Brian Kling]

Posted on March 15, 2018 at 16:48

Update: our support team is reaching out directly to

extracting77

‌ on this question.

[Andrew Neil]

Posted on March 15, 2018 at 16:39

T J wrote:

however, at the bottom of that document...

Contact information

If you have any questions concerning matters raised in this document, please contact STMicroelectronics at the following address:

/external-link.jspa?url=http%3A%2F%2Fwww.st.com%2Fstonline%2Fdomains%2Fsupport%2Fcontact_support.htm

Hmmm ... not useful:

Perhaps

Kling.Brian

‌'s ''

internal resource'' could also address that one ... ?