What are SMD Resistors?
SMD stands for Surface Mounted Device. An SMD is any electronic component that is made to use with SMT, or Surface Mount Technology. SMT was developed to meet the ongoing desire for printed circuit board manufacture to use smaller components and be faster, more efficient, and cheaper.
What is Resistor ?
A resistor is an electrical component that limits or regulates the flow of electrical current in an electronic circuit.
Resistor definition
"Resistor is a passive electrical component with the primary function to limit the flow of electric current"
Symbol (shown on the right).
 Fixed resistor symbol
ANSI standard |  Fixed resistor symbol |
Overview of types and materials
Resistors can be divided in construction type as well as resistance material. The following breakdown for the type can be made:
- Simple resistors - WORK / Testing
- Dual resistors
- VDR Resistor
- Code Resistor
- Network Resistor
- Fuse Resistor
How to Check SMD Resistor With Digital Multimeter ?
How to Soldering SMD Resistor ?
Resistors in parallel
The total equivalent resistance of resistors in parallel RTotal is given by:
So when you add resistors in parallel, the total resistance is decreased.
Resistors in series
The total equivalent resistance of resistors in series Rtotal is the sum of the resistance values:
Rtotal = R1+ R2+ R3+...
So when you add resistors in series, the total resistance is increased.
Resistor image
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