tag:blogger.com,1999:blog-10053122.comments2023-06-10T09:06:30.108+01:00Static Consultants NotebookStatic Doctorhttp://www.blogger.com/profile/13413070539308266308noreply@blogger.comBlogger112125tag:blogger.com,1999:blog-10053122.post-65060512353992352052015-07-19T16:39:54.559+01:002015-07-19T16:39:54.559+01:00I still son't know How does a vacuum cleaner c...I still son't know How does a vacuum cleaner cause static electricity. Can you tell me the detail?Winnie Gilberthttp://vacuumsealerhq.netnoreply@blogger.comtag:blogger.com,1999:blog-10053122.post-82322370227886648552013-08-02T17:07:18.006+01:002013-08-02T17:07:18.006+01:00It is not really a question of active/passive, it ...It is not really a question of active/passive, it is a question of ESD susceptible or not. Some passive components could be susceptible to ESD damage, although it is more unusual. Certainly an unpopulated PCB would not be susceptible to ESD damage and therefore wuld not need to be protected in ESD protective packaging. <br /><br />Against this, you do not want to take materials that could cause electrostatic charge build-up and fields into an ESD Protected Area. So, it is common to package even non ESD susceptible components in ESD protective packaging for kitting. This would not have to be shielding packaging, pink or black polythene might be used. Static Doctorhttps://www.blogger.com/profile/13413070539308266308noreply@blogger.comtag:blogger.com,1999:blog-10053122.post-79924257134674277132013-04-29T16:58:20.662+01:002013-04-29T16:58:20.662+01:00I agree, it would be nice to get something like th...I agree, it would be nice to get something like this. I've been looking into <a href="http://www.exxene.com/core-products/anti-static-coating/" rel="nofollow">anti static coating</a>. I think it would help me out with my work a whole lot. I really appreciate the help, thanks for sharing! Anonymoushttps://www.blogger.com/profile/10086154850977890592noreply@blogger.comtag:blogger.com,1999:blog-10053122.post-88315160392174374122013-03-03T07:43:17.524+00:002013-03-03T07:43:17.524+00:00like many of ppl here, I too get those 'static...like many of ppl here, I too get those 'static shocks'. first i thought dis cud b bcoz i spend lot of time at work in air conditioned environ OR sumthing strange in my body. To open a door or give a hand shake I use a small towel! rub my hands on it first, then give a hand shake :( Also using moisturizer on ur hands helps..<br />'Shocks' really 'sucks'.Archiehttps://www.blogger.com/profile/05418361535828184657noreply@blogger.comtag:blogger.com,1999:blog-10053122.post-62601533897539790872012-12-02T20:56:45.424+00:002012-12-02T20:56:45.424+00:00
I recently got an unpleasant shock from my (now b...<br />I recently got an unpleasant shock from my (now binned) coffee machine. it lasted for less than a second and the voltage was given on the plate below, as 240 volts. Was this static electricity and will it have hurt me neurologically speaking?<br />Sean Kinsellahttps://www.blogger.com/profile/11049047697339371608noreply@blogger.comtag:blogger.com,1999:blog-10053122.post-44798777753528860552012-11-05T09:07:42.841+00:002012-11-05T09:07:42.841+00:00i seem to be having problems with small devices su...i seem to be having problems with small devices such as phones and DVD players, they seem to stop working or stop charging could this be because i have too much static electricity generating???Anonymoushttps://www.blogger.com/profile/13834091675314070831noreply@blogger.comtag:blogger.com,1999:blog-10053122.post-57520101106090827212012-10-30T03:03:38.224+00:002012-10-30T03:03:38.224+00:00Dear Mr. Sir,
I had been trying to read material ...Dear Mr. Sir,<br /><br />I had been trying to read material on ESD related matters on the internet and noted your name on 1 of the articles. As the e-mail address was also shown, I decided to write to ask your advise, if you do not mind my asking so.<br /><br />We supply PCB’s to our customers and it is packaged in MBB bags for moisture reasons as well as to protect the PCB’s for a longer period of time, as the surface finishing used on the PCB is OSP.<br /><br />Whilst kitting parts at their facility, a customer of ours noted had high voltage on the MBB bags used to pack the PCB’s. <br /><br />As PCB’s are not an active component, there are not packed in shielded bags. Shielded bags I understand are used for actgive components such as IC’s, etc. Basically components affected by electrostatic discharge. PCB does not fall in tis category.<br /><br />Other than the customer kitting parts separately, do you have any comments or advise related to this matter.<br /><br />If you have some time, I will appreciate your kind opinions or advise.<br /><br />Thanking you in advance.<br /><br />Best Regards<br /><br /><br />Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-10053122.post-51374732258132420932012-09-27T17:07:10.668+01:002012-09-27T17:07:10.668+01:00Same here...I get shocked walking through the hous...Same here...I get shocked walking through the house if I get close to the walls...i live in the Caribbean and most buildings are made of concrete including my home...I also shock my family when touching them, but that mostly occurs when outside is overcast or when we travel to the U.S.A...most recently I noticed that I've been attracting lightening which happened as recently as thirty minutes ago. Its becoming scary.Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-10053122.post-45120631906726300192012-09-21T10:18:32.788+01:002012-09-21T10:18:32.788+01:00Sorry Darin, I can't comment on this without k...Sorry Darin, I can't comment on this without knowing a lot more. Static Doctorhttps://www.blogger.com/profile/13413070539308266308noreply@blogger.comtag:blogger.com,1999:blog-10053122.post-88443853655746501412012-08-15T18:55:15.971+01:002012-08-15T18:55:15.971+01:00Doc,
We are having a problem with the microwave b...Doc,<br /><br />We are having a problem with the microwave breaker tripping. It is on a dedicated circuit. The microwave is brand new and even has been tested by multiple people and we have narrowed the problem down to maybe static electricity in the building? Could this be the issue?<br /><br />Thanks,<br /><br />Darin - SLC, UT Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-10053122.post-90878236575853156902012-04-22T15:14:42.992+01:002012-04-22T15:14:42.992+01:00You could use an electrostatic discharge to drive ...You could use an electrostatic discharge to drive a small transistor or mosfet. I would dump the current into a capacitor to store the charge. It would be wise to put some sort of voltage limiting (e.g. zener diode) to prevent damage of a mosfet by larger discharges. You would probably need to use the output of the fet/transistor to trigger some relay driver circuit.Static Doctorhttps://www.blogger.com/profile/13413070539308266308noreply@blogger.comtag:blogger.com,1999:blog-10053122.post-22587226842635565012012-04-17T18:20:35.387+01:002012-04-17T18:20:35.387+01:00I am interested in using static shocks to trigger ...I am interested in using static shocks to trigger relay or a transistor. Do I put it through a capacitor or a coil first? I thought I could maybe use a transistor with out using an amp or anything..<br />Any tips?<br /> Oliver . Kellow at gmail.comOliverhttps://www.blogger.com/profile/03953242428871306732noreply@blogger.comtag:blogger.com,1999:blog-10053122.post-37661400101713669842012-03-01T11:35:13.451+00:002012-03-01T11:35:13.451+00:00In current standards, wrist straps are mandatory f...In current standards, wrist straps are mandatory for seated personnel because they will take their feet off the floor and lose ground contact.Static Doctorhttps://www.blogger.com/profile/13413070539308266308noreply@blogger.comtag:blogger.com,1999:blog-10053122.post-33108365556280876222012-02-21T00:07:51.110+00:002012-02-21T00:07:51.110+00:00I get shocked from touching any and everything fro...I get shocked from touching any and everything from a pin which is metallic to a blanket which is cotton. The latest of these incidences was coming home from work to a cold house, i touched the heater to fell if there was any heat coming from it , my finger sparked. i am really scared now. I really need help.Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-10053122.post-90531559374598543202012-01-06T18:53:51.519+00:002012-01-06T18:53:51.519+00:00I've been plagued by this concern for a while ...I've been plagued by this concern for a while now and have been unable to find any concrete information on it.<br /><br />We have ESD chairs, ESD work surfaces, and ESD flooring. Anyone entering the area must wear a jacket and straps. If someone were to sit on an ESD chair and their feet were to no longer have contact with the floor, would a wrist strap be necessary?Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-10053122.post-38271837786724384342011-12-07T05:51:17.693+00:002011-12-07T05:51:17.693+00:00I think you are suporting those who make wrist str...I think you are suporting those who make wrist straps. We have succesfully removed wrist straps and continous ground monitoring systems for seated personnel after grounding the person with ESD chair and achieving < 35Meg Ohms... but the evalaution was intensive due to the type of material to be usedAnonymousnoreply@blogger.comtag:blogger.com,1999:blog-10053122.post-79330498909339817382011-12-06T11:54:08.227+00:002011-12-06T11:54:08.227+00:00yes obviously conformal coating will help and prev...yes obviously conformal coating will help and prevent ESD.Mike Jhonhttp://www.wallteccoatings.comnoreply@blogger.comtag:blogger.com,1999:blog-10053122.post-17869506399756343612011-11-26T02:03:06.232+00:002011-11-26T02:03:06.232+00:00Conformal Coatings are essential to protect agains...<a href="www.protectrshield.com/faqs.html" rel="nofollow">Conformal Coatings</a> are essential to protect against moisture, dust, chemicals and extreme temperatures from electrical failure.Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-10053122.post-62209678582546825612011-10-26T05:23:42.717+01:002011-10-26T05:23:42.717+01:00I get shocked all day long, never ending. I shock ...I get shocked all day long, never ending. I shock other people, I shock my self with everything. I tried pullind my hair up and no longer have rug.. still happens. I am so tired of it, it goes everywhere with meAnonymousnoreply@blogger.comtag:blogger.com,1999:blog-10053122.post-70756133691709011282011-09-12T05:46:16.528+01:002011-09-12T05:46:16.528+01:00is there any significant effect of wearing an ESD ...is there any significant effect of wearing an ESD gloves on already protected area? will there also be an effect if we will no longer use ESD gloves on EPA?eNeMCeehttps://www.blogger.com/profile/13433517808412419493noreply@blogger.comtag:blogger.com,1999:blog-10053122.post-29199301278423763572011-09-12T05:44:02.428+01:002011-09-12T05:44:02.428+01:00is there any disadvantage of using esd gloves?is there any disadvantage of using esd gloves?eNeMCeehttps://www.blogger.com/profile/13433517808412419493noreply@blogger.comtag:blogger.com,1999:blog-10053122.post-10785719728621803262011-08-06T08:16:38.128+01:002011-08-06T08:16:38.128+01:00As far as I know the thickness of the coating is n...As far as I know the thickness of the coating is not equal and usually thin on vertical leads. In this places the edges might even be exposed and not coated at all. I believe these exposed placed could be hit by ESD. I would not rely on conformal coating as ESD protection in my applications.<br />Israel.Gershman Israelhttps://www.blogger.com/profile/07297307242579923137noreply@blogger.comtag:blogger.com,1999:blog-10053122.post-25925071136383494372011-07-21T20:31:09.760+01:002011-07-21T20:31:09.760+01:00Having the right tools for the right job is very i...Having the right tools for the right job is very important, especially something as fragile as electronics. Using ESD gloves for protection or getting a measurement with a <a href="http://www.prostatcorp.com/esd-resistance-meters.asp" rel="nofollow">Resistivity Meter</a>. Each plays its part.Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-10053122.post-10036775998231319622011-06-05T18:01:51.171+01:002011-06-05T18:01:51.171+01:00A 25microF 25V capacitor is to big to be ESD sensi...A 25microF 25V capacitor is to big to be ESD sensitive by the mechanism I am talking about. 250 microCoulombs is a very large amount of charge compared to most ESD which is measured in nanoCoulombes to microCoulombs. The maximum charge transferred is given by the product of voltage and capacitance. For example, a person of capacitance 150pF charged to 5kV would transfer up to 750nC of charge and theoretically threaten capacitors up to 1nF 750V, or 10nF 75V. A person of 100pF charged to 1000V would threaten 10nF capacitors up to 10V working voltage, or 1 nF up to 100V, or 10pF capacitors up 10kV working voltage. In practice capacitors may withstand voltages higher than their rated working voltage and their ESD withstand is greater than might be expected from this.Static Doctorhttps://www.blogger.com/profile/13413070539308266308noreply@blogger.comtag:blogger.com,1999:blog-10053122.post-32901397806546602322011-06-05T17:21:21.849+01:002011-06-05T17:21:21.849+01:00I agree that it is only small value low voltage ca...I agree that it is only small value low voltage capacitors that are likely to be ESD sensitive.Static Doctorhttps://www.blogger.com/profile/13413070539308266308noreply@blogger.com