SMD Components Study
Surface-mount technology (SMT) is a method for
producing electronic circuits in which the components are mounted or
placed directly onto the surface of printed circuit boards (PCBs).
An electronic device so made is called a surface-mount
device(SMD).
Resistor
In Mobile Phones Surface
Mount Molded (SMD) Resistor where not printed with numerical
value and it is left blank, the problem is that it is too tiny or small to
print at.
You can refer only its value by an aide of Schematic Diagram Available for that product. Or you can Identify and check its value by using Resistance Tester.
You can refer only its value by an aide of Schematic Diagram Available for that product. Or you can Identify and check its value by using Resistance Tester.
.
Resistances less than 1000 ohms or 1K with ''R''
indicated in the middle indicates a decimal point like:
4R7 = 4.7Ω
2R2 = 2.2Ω
and the rest just like how it does indicated like:
100Ω = 100 ohms
220Ω = 200 ohms
and up
4.7K = 4.7 kilo ohms
4R7 = 4.7Ω
2R2 = 2.2Ω
and the rest just like how it does indicated like:
100Ω = 100 ohms
220Ω = 200 ohms
and up
4.7K = 4.7 kilo ohms
The Printed SMD Resistor
Zero ohm resistors Surface mounted resistors are printed with numerical
values in a code related to that used on axial resistors. 
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