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Strengths and weaknesses of common resistor types

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Treth
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re: Strengths and weaknesses of common resistor types
Treth   6/14/2010 5:37:17 PM
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A scholarly and comprehensive article. I would add that the smaller surface mount packages for resistors have another design restriction: Voltage limits, irrespective of the actual power dissipation limits. For example, size 0402 resistors have a maximum working voltage of 25V. Subjecting these parts to the voltages common in telecommunications circuits can cause electrical noise.

green_is_now
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re: Strengths and weaknesses of common resistor types
green_is_now   6/10/2010 3:34:33 AM
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Can the two slightly PTC and NTC metal foil types be combined in ratios proportional to their TC in terms of their resistance ratios for even lower TCR ?

bcarso
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re: Strengths and weaknesses of common resistor types
bcarso   6/9/2010 3:56:06 PM
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A very good discussion---too bad about the typos in the 4-point list. I learned the hard way about the insanely high excess noise of thick films when using them in a front end with appreciable d.c. current flow---that +20dB noise index in the table is about what I measured. And those of you who dismiss such effects by pointing to the absence of d.c. in your circuit need to realize that the excess noise will still "ride" on the signal swings and degrade S/N.

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