Hi, We are using RF connector

• Dec 19, 2002

• #2

jwerthman

Electrical

Oct 1, 2001

124

US

I haven't seen that term either. Just guessing, I would say that it is deci-ohms (x 0.1), or 0.06 ohms in your case. I doubt that it is critical if you are using these at audio frequencies.

Don't go to the bank with my reply; I may be way off base.

 

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• Dec 19, 2002

• Thread starter
• #3

mooimooi

Electrical

Jun 1, 2001

44

MY

Hi jwethehman,

60 milliohm around contacts do make sense and I
think your guestimation may be correct although I wouldnt go to the Bank of America to bank this. Anyway I dont
know why some suppliers use Dohm instead of just
0.06ohm or 60 milliohm.
Thanks for your help.

 

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• Dec 20, 2002

• #4

melone

Electrical

Aug 10, 2001

1,233

US

How about "Dynamic"? When dealing with RF, most resistances change over frequency. I know that there are special resistors designed to be used at certain frequencies. However, 0.06 Ohms seems pretty low.

Just a thought.

 

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• Dec 22, 2002

• Thread starter
• #5

mooimooi

Electrical

Jun 1, 2001

44

MY

Hi Melone,

Could be Dynamic resistance also!.
But I thought ordinary reistors(except wirewound) do not change their values unlike capacitors or inductors because they do not possess inductive or capacitive property. Please
bring some light to my ignorance.
Best Regards

 

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• Dec 22, 2002

• #6

melone

Electrical

Aug 10, 2001

1,233

US

Depending on the construction of the resistor, the presence of skin effect can be quite large over frequency. Unfortunately, I am not a RF guru, but have heard this problem stated by some co-workers.

 

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