RE: RFID tags

RE: RFID tags Bob, Do you know anything about the 915MHz passive tags? Josh From: rehel...@mmm.com [mailto:rehel...@mmm.com] Sent: Thursday, November 20, 2003 7:24 AM To: richwo...@tycoint.com Cc: emc-p...@majordomo.ieee.org

Re: RFID tags

The RFID tags (active tags) are subject to the RTTE Directive and the following standards for 13.56 MHz tags: 300 330-1 (General) 300 330-2 (Radio) 301 489-1 (EMC) Bob Heller 3M EMC Laboratory, 76-1-01 St. Paul, MN 55107-1208 Tel: 651- 778-6336 Fax: 651-778-6252 ==

Re: Semiconductor thermal protection requirement?

It's called junction melt down. Bob Heller 3M EMC Laboratory, 76-1-01 St. Paul, MN 55107-1208 Tel: 651- 778-6336 Fax: 651-778-6252 ===

Re: Immunity testing mitigations

On 12 Nov 2003, Tom wrote >If you are so sure that your product complies with the protection >requirements of the EMC Directive even if it failed to pass the test, >you have chance to use TCF Route instead of the Standard Route. >Regards, >Tom Tom, could you explain your thinking on this a litt

USB2

Is anyone (besides us) having any problems passing European Class B radiated emissions on devices that use USB2 communications? Does anyone know of a quiet USB2 laptop or PC? Any tips on isolating the noise to the PC or to the device? Emissions occur only when the devices are communicating with ea

RE: EN 61000-3-2:2000 Correction

EN 61000-3-2 is not a basic standard. It is a product family standard (says so right in the standard plus it is listed in the OJ, basic standards do not show up in the OJ). Chris has a point, since 61000-3-2 is a stand-alone product family standard (all equipment 16A and under), it is not necess

RE: EN 61000-3-2:2000

EN 61000-3-2 is not a generic standard. It is a product family standard (says so right in the standard plus it is listed in the OJ, generic standards do not show up in the OJ). Chris has a point, since 61000-3-2 is a stand-alone product family standard (all equipment 16A and under), it is not ne

Re: Automotive directive

The Automotive Directive is an "old approach" directive. Everything needed to define, execute, and interpret the tests is contained in the Directive itself. Bob Heller 3M EMC Laboratory, 76-1-01 St. Paul, MN 55107-1208 Tel: 651- 778-6336 Fax: 651-778-6252 =

Re: North American Automotive EMC

Alex, in the US there appears to be a hole in the testing scheme for aftermarket automotive products. If the product is to be installed on the original equipment (i.e., the car) then there are very stringent automotive industry standards that must be complied with both in the US and in Europe. Fo

Re: Luggage Loader

>In a message dated 10/9/2003 9:48:19 AM Central Daylight Time, lfresea...@aol.com writes:>My question is, is this method allowed only for >in-situ testing, or can it be used when the EUT is so large that it cannot fit in the chamber? >Hi Sam, > >I faced the same problem testing injection Mouldin

RE: Missing Emissions data from D of C?

Or a previous report already covers the emissions. Test reports should reference each other but they do not necessarily have to. You will not know the situation until you talk to your client's competitor. Bob Heller 3M EMC Laboratory, 76-1-01 St. Paul, MN 55107-1208 Tel: 651- 778-6336 Fax: 651

Ready-made connecting devices

Under the proposal for the new EMC Directive, it is my understanding that "ready-made connecting devices" (not sold with the equipment) will require CE marking. Has there been any thought, proposal, procedure, etc. as to how they are to be tested for compliance and to what standard? For the most p

Re: PC noise and a standards question

In the US I believe it to be exempt as per 15.103(c). Otherwise it will probably fall under 61326 (lab equipment) or the Generic for light industrial. Bob Heller 3M EMC Laboratory, 76-1-01 St. Paul, MN 55107-1208 Tel: 651- 778-6336 Fax: 651-778-6252

IR LED

Are there any European RTTE, SRD, wireless, etc. standards that cover infrared data links using IR LEDs? Thanks in advance, Bob Heller 3M EMC Laboratory, 76-1-01 St. Paul, MN 55107-1208 Tel: 651- 778-6336 Fax: 651-778-6252 === This message

Hong Kong

Are there any EMC requirements for product entry into Hong Kong? Thanks, Bob Heller 3M EMC Laboratory, 76-1-01 St. Paul, MN 55107-1208 Tel: 651- 778-6336 Fax: 651-778-6252 === This message is from the IEEE EMC Society Product Safety Technic

Re: Generic industrial EMC standards

There may be something in the fact that 61000-6-4 is an IEC generated document and the 50081-2 is a CENELEC generated document that never had an IEC equivalent. Bob Heller 3M EMC Laboratory, 76-1-01 St. Paul, MN 55107-1208 Tel: 651- 778-6336 Fax: 651-778-6252 ==

RE: voltage dips

Mike, are you aware of the major changes to the 2nd revision of IEC 61000-4-11? Thanks, Bob Heller 3M EMC Laboratory, 76-1-01 St. Paul, MN 55107-1208 Tel: 651- 778-6336 Fax: 651-778-6252 ===

Reverberation Chamber

Can someone point me in the direction of a company or information on constructing a reverberation (mode-stirred) chamber. We would like to use it as a precompliant diagnostic facility/resource. Any experience using one? Pros? Cons? Thanks, Bob Heller 3M EMC Laboratory, 76-1-01 St. Paul, MN 55107-

RE: R&TTE Directive Member States Notification

Out of curiosity...are there ANY harmonized frequencies in Europe? Is 13.56 MHz harmonized? Bob Heller 3M EMC Laboratory, 76-1-01 St. Paul, MN 55107-1208 Tel: 651- 778-6336 Fax: 651-778-6252 This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discus

Re: Plenum rated equipment

I believe that it has to do with the cable coatings. I believe that the cable jackets have to have a higher temp rating and that if they burn, they cannot give off toxic fumes as these would be carried along an air plenum type ceiling or floor. Bob Heller 3M EMC Laboratory, 76-1-01 St. Paul, MN

Crest Factor

I'm trying to spec a power supply. Can someone provide me with a typical crest factor that a typical power supply should be able to source without distortion.? Thanks, Bob Heller 3M EMC Laboratory, 76-1-01 St. Paul, MN 55107-1208 Tel: 651- 778-6336 Fax: 651-778-6252

Site Atten. and Field Uniformity

I am looking for a company in the US that will perform site attenuation and field uniformity for us. We normally generate our own data but this year we are looking for an independent verification. Bob Heller 3M EMC Laboratory, 76-1-01 St. Paul, MN 55107-1208 Tel: 651- 778-6336 Fax: 651-778-6252

Australian Automotive Product

I cannot find any special requirements for products going into automobiles for Australia (I looked at the ACA website). Does anyone know of any other than the C-Tick requirements (product is not telecommunications). Thanks, Bob Heller 3M EMC Laboratory, 76-1-01 St. Paul, MN 55107-1208 Tel: 651-

Automotive Directive

I have a copy of the Directive 95/54/EEC on order. Can anyone tell me if the following are true: The Directive only contains tests for broadband emissions, narrowband emissions, and radiated immunity. No tests exist for conducted emissions, immunity to transients, or ESD. Do (or can) auto manufa

RE: ESD failure

It quite often does not need a 3 kV suppression device. ESD can couple by radiation within the EUT and the radiated "volts" that are actually coupled is much much lower than the injected pulse such that the higher 8 kV can trigger a lower voltage suppression device (say a 20 volt signal line supp

Re: Superseded standard

EN 50082-1:1992 was superseded by EN 50082-1:1997 on July 1, 2001. EN 50082-1:1997 will be superseded by EN 61000-6-1:2001 on July 1, 2004. Bob Heller 3M EMC Laboratory, 76-1-01 St. Paul, MN 55107-1208 Tel: 651- 778-6336 Fax: 651-778-6252 =

60601-1-2:2002

Is EN 60601-1-2:2002 listed in the OJ? I can only find reference to the 1993 version. Can we officially use the latest version? Bob Heller 3M EMC Laboratory, 76-1-01 St. Paul, MN 55107-1208 Tel: 651- 778-6336 Fax: 651-778-6252 === This mess

European 3 Phase

What three-phase voltages are commonly available in Europe? Is 230 VAC three-phase readily available? Is wye or delta most common or doesn't it matter? Thanks, Bob Heller 3M EMC Laboratory, 76-1-01 St. Paul, MN 55107-1208 Tel: 651- 778-6336 Fax: 651-778-6252