Re: Marking - Made in XXX

Amund, I believe it's a law in the US that all products be labeled with their country of origin. - Robert - Robert A. Macy, PEm...@california.com 408 286 3985 fx 408 297 9121 AJM International Electronics Consultants

Marking - Made in XXX

Is it necessary to describe where a product is manufactured, as in Made in XXX. I have see this statement/label on many products, but is it only voluntary ? Best regards Amund Westin, Oslo/Norway --- This message is from the IEEE EMC Society Product

Re: High Temp Caps and Inductors

Derek: You obviously are facing a challenge (a.k.a. problem). Sometimes you actually have to make things yourself, and this may be one of those times. For the inductors, I'd say you will have to go with air core. I've done air core inductors up to the hundreds of microhenries (for LF antenna

SV: Decoupling - capacitor values

Tim, The standard is IEC/EN60945:1997, Maritime navigation and radio communication equipment and systems - General requirements- Methods of testing and required test results. Almost all ship classification societies as Lloyd's Register (LR), Germanischer Lloyd (GL), American Bureau of Shipping

Re: High Temp Caps and Inductors

I read in !emc-pstc that lfresea...@aol.com wrote (in 194.5bfc605.29f1e f...@aol.com) about 'High Temp Caps and Inductors', on Fri, 19 Apr 2002: I'm looking for Ceramics, 0.01 through 1 microfarad. Inductors, 1 to 100 microhenry, about 0.5 amps. You will not, I think, get ceramic capacitors in

Magnetic Testing

Bud, I don't have a copy of the IATA Packing Instruction here at the lab, but from what you described, it may be similar to the Compass Safe Distance test which is called out in the Maritime Navigation and Communication EMC Standard EN 60945:1997. This magnetic test determines the distances

Re: Decoupling - capacitor values

Amund, Cortland may be right, a chamber 'may not' be needed, high ambient considerations to be put aside for the moment, even if the emission is measured to be on the 24dBuV/m @ 3m, freq.band 155MHz-165MHz. I am just curious, what are the limits (or standards) are you trying to meet? From

RE: High Temp Caps and Inductors

A lot depends on the frequency you are operating at. A low frequency filter may use electrolytic caps, for example, and there is no way you will ever get 180°C electrolytics! Most of the common non-electrolytic capacitor dielectrics won't have a hope of operating at this temperature either.