On Sunday 31 January 2016 14:16:17 John Dammeyer wrote: > Gene, > Never ever wrap static sensitive semiconductors in foil. The point of > the pink or black antistatic materials is to 'slowly' conduct the > energy from the device or your fingers. Foil is a great conductor and > you are more likely to damage them wrapping them in foil than just > handling them with your bare fingers. > It's the speed of the transition that causes the heat that causes the > internal structure to be damaged. > Not that plastic tape is good. But foil is a no-no. > John
Probably correct, not to mention the oxide film on the old foil is good for nearly 400 volts. I'll much around and find a smallish pink bag. Thanks for the heads up. Thanks John D. > > > -----Original Message----- > > From: Gene Heskett [mailto:ghesk...@wdtv.com] > > Sent: January-31-16 6:51 AM > > To: Enhanced Machine Controller (EMC) > > Subject: [Emc-users] Well, thats the end of aliexpress.com for me > > > > > > Greetings; > > > > I had asked about them prior to ordering some hexfet transistors > > from their site. > > > > The cro-magnun filling the order has no clue about the care and > > feeding of mosfet transistors, so the 10 pack I ordered were > > arranged as 2 rows of 5, with the legs interdigitated, bound in > > scotch tape as a slab to fit nicely in a China Post envelope. But > > no provision for static absorbing, no shorting wires, or any of that > > black anti-static foam was used. I did get the first one cut loose, > > leaving the tape until such time as I could grab the legs with damp > > fingers before removing the rest of the tape. I was not so lucky > > with the 2nd, so I dropped the packet into a container of somewhat > > dirty water to control the static while I untangled the next 3. The > > rest were wrapped in foil & put away. > > > > Then they wanted feedback, been pestering me about it nearly every > > day for a week so of course they sent an html encoded message with > > no text. The 244 character long URL did not surive the trip so it > > didn't work, no <> wrapped around it to make it a valid link. So I > > replied to the originating address giving them a small piece of my > > mind that I can still spare. KMail of course stripped the html, > > leaving only the spamassassin report defining all the reasons it > > landed in my spam folder. > > > > And just for good measure, included <ad...@aliexpress.com> in the > > To: column. And that bounced instantaneously with the message that > > I have no account there. By the RFC's as IUI, that MUST BE a valid > > address. > > > > Bottom line is that I will not purchase any more semi-conductors > > from them. Buyer beware if you do. I won't. > > > > Cheers, Gene Heskett > > -- > > "There are four boxes to be used in defense of liberty: > > soap, ballot, jury, and ammo. Please use in that order." > > -Ed Howdershelt (Author) > > Genes Web page <http://geneslinuxbox.net:6309/gene> > > ---------------------------------------------------------------------- >------ -- > > > Site24x7 APM Insight: Get Deep Visibility into Application > > Performance APM + Mobile APM + RUM: Monitor 3 App instances at just > > $35/Month Monitor end-to-end web transactions and take corrective > > actions now Troubleshoot faster and improve end-user experience. > > Signup Now! > > http://pubads.g.doubleclick.net/gampad/clk?id=267308311&iu=/4140 > > _______________________________________________ > > Emc-users mailing list > > Emc-users@lists.sourceforge.net > > https://lists.sourceforge.net/lists/listinfo/emc-users > > ---------------------------------------------------------------------- >-------- Site24x7 APM Insight: Get Deep Visibility into Application > Performance APM + Mobile APM + RUM: Monitor 3 App instances at just > $35/Month Monitor end-to-end web transactions and take corrective > actions now Troubleshoot faster and improve end-user experience. > Signup Now! > http://pubads.g.doubleclick.net/gampad/clk?id=267308311&iu=/4140 > _______________________________________________ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users Cheers, Gene Heskett -- "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author) Genes Web page <http://geneslinuxbox.net:6309/gene> ------------------------------------------------------------------------------ Site24x7 APM Insight: Get Deep Visibility into Application Performance APM + Mobile APM + RUM: Monitor 3 App instances at just $35/Month Monitor end-to-end web transactions and take corrective actions now Troubleshoot faster and improve end-user experience. Signup Now! http://pubads.g.doubleclick.net/gampad/clk?id=267308311&iu=/4140 _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
