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Why HBM model uses 1.5K resistor to model human body resistance? (Read 39 times)
neoflash
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Why HBM model uses 1.5K resistor to model human body resistance?
Nov 14th, 2017, 4:54pm
 
I used multi-meter and found the resistance between my hands are ~500K ohm.

The value goes much higher if the other terminal attached other parts of body such as arms.

This leads me to wonder how resistive is human body tissue and skin etc.


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Maks
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Re: Why HBM model uses 1.5K resistor to model human body resistance?
Reply #1 - Nov 16th, 2017, 4:24pm
 
Human body (or skin) resistance is very nonlinear and varies a lot with voltage, moisture, time of the day, person-to-person, etc. This Wikipedia article provides some information on that:

https://en.wikipedia.org/wiki/Electric_shock

I don't know though why a value of 1.5 kOhm and not 1.0 kOhm or 2.0 kOhm was selected for HBM model.

Max
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