How To Read SMD Resistor

We have discussed about SMD component in our last post SURFACE MOUNT DEVICE.
So in this post we are going to discussed about SMD Resistor and to find the value of resistor from the printed numerical code on its surface.

 

Above image has six SMD Resistor, now first of all how can you find whether the given component is resistor or an capacitor.

The answer is from the color of the component, SMD resistor are in black color with resistance printed on there surface.

Now, the resistors in the above image has 3 digit code (some resistor has 4 digit code also).

The code is 103, so the first two digit represent the answer and the last digit represent the number of zero's should be added after the answer.

Example :

103 = 10 (the two number) 000 (three zero's).

Hence the final answer is 10000 Ohms (answer obtain is always in ohms, further we can convert it).

Here are some more example 

334 = 330 000Ohms = 330k

443 = 44 000Ohms = 44k

Now, you can see the above component with code 2512.i.e it has the four digit color coding, the value of this resistor is decoded in the same manner.

The resistor with the value below 10 ohms has letter "R" to denote the position of the decimal point.

Such as 5.7Ω can be written as 5R7

6.2Ω =6R2

2.2Ω =2R2

How To Read SMD Capacitor.(click here)

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