Identification Diode  - Page 1
Forum section: electronics / beginners

author: giovesjo
author_rank: Newbie
timestamp: May 18, 2019, 11:58:45 am
content: Hi everyone, I'm totally new in electronics!!Can anyone tell me please how to identificate this two diodes?Are they the same?how and where can I find a replacement for those.thanksGiovanni

author: giovesjo
author_rank: Newbie
timestamp: May 18, 2019, 12:21:43 pm
content: is it measuring of its length and width enough for replacement?

author: tautech
author_rank: Super Contributor
timestamp: May 18, 2019, 01:07:08 pm
content: Search Google for SMD diode marking EVFirst hit:https://datasheet.octopart.com/SM6T15CA-STMicroelectronics-datasheet-8321715.pdfFrom list: SM6T36AConfirm with physical measurementsOh and welcome to the forum.Further down similar devices but none that are EV marked.https://www.littelfuse.com/~/media/electronics/product_catalogs/littelfuse_tvs_diode_catalog.pdf.pdf

author: Nerull
author_rank: Frequent Contributor
timestamp: May 18, 2019, 03:33:24 pm
content: The giant ST logo would be an indication it isn't a littlefuse product....

author: giovesjo
author_rank: Newbie
timestamp: May 18, 2019, 06:22:07 pm
content: thanks for your help,and for the welcome, i'm very happy to be part of this blog.So you say that the only fisichal measuring of the diode will give me the exact diode that I have to choose for replacement?of course It Will be an unidirectional diode.Starting from the statement that I thake as Gold what you say:But how you come at the conclusion that SM6T36A will be the one I need? only looking at the picture?just a question.thanks

author: tautech
author_rank: Super Contributor
timestamp: May 18, 2019, 09:15:00 pm
content: Quote from: giovesjo on May 18, 2019, 06:22:07 pmPhysical measurement is just a confirmation that you have found the correct datasheet.QuoteYes the EV marking tells us what to search for but sometimes we need the package type too and we now know it is the industry standard SMB.The datasheet tell all.Quote from: Nerull on May 18, 2019, 03:33:24 pmYes of course however the OP is by his own admission totally new to electronics and the nice Littlefuse datasheet offers many examples of how a TVS diode is used unlike the ST datasheet that one can say only offers the bare minimum required for even those with TVS experience.When you're totally green to electronics you need all the help you can get.

author: David Cutcher CEG
author_rank: Contributor
timestamp: May 19, 2019, 01:23:30 am
content: Nothing personal,but you do sound like you're very fresh to electronics.If you're interested, I could use your help.Please look at my post -Beginners / Seeking Beta Testers for Intro To Electronics Courseor find it by searching for my name Cutcher.There are two attachments. Read the summaries. If you're interested, contact me at ElectronicsWithDavid@gmail.comThanksDavid Cutcher "Certified Evil Genius"

author: Zero999
author_rank: Super Contributor
timestamp: May 19, 2019, 07:33:38 am
content: Quote from: David Cutcher CEG on May 19, 2019, 01:23:30 amHere's a link to the thread:https://www.eevblog.com/forum/beginners/seeking-beta-testers-for-intro-to-electronics-course-on-udemy-com/msg2372139/#msg2372139Quote from: giovesjo on May 18, 2019, 06:22:07 pmWhy do you believe the diodes are faulty? What tests have you done on them?What are you repairing?It's possible the diodes are not faulty.

author: giovesjo
author_rank: Newbie
timestamp: May 19, 2019, 10:25:54 am
content: Yes I'm totally new to electronics, I'm an Instrumentation engineer.I would love to learn more about electronics.thanks for your help also.I will contact you with more specific info's.ThanksGio