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SMD resistor and Capacitor & SMD Resistor

Source: Internet
Author: User
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1,How can I solder the SMD resistor and capacitor? Old brother taught: There are two welding pad, first pad a welding pad to Tin, first weld one side, and then welding the other side, the effect is good, there is to buy a non-magnetic pointed tweezers, or difficult. 2. How to separate the positive and negative electrodes of the SMD capacitor? Personal experience: electrolytic capacitor patches are divided into positive and negative, cylindrical SMD electrolysis, on behalf of the black bar is the negative pole; similar to the SMD resistor small rectangular SMD electrolytic capacitor, with one end of the bar is the positive pole. Other general domestic capacitors (leftmost capacitors) do not need to be distinguished by polarity. 3. How to identify and label the resistance _ SMD resistance? XXY XXRepresents the base number, YRepresentative Index
Example: 470 = 47
103 = 10 k
224 = 220 k

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