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Thursday, 29 June 2017

What is SMD Coil - English

What is SMD Coil - English 


SMD Coil – Surface Mount Chip Coil 

SMD Coil Type

How to Check SMD Coil by Digital Multimeter 
How to Check Boost SMD Coil by Digital Multimeter 


SMD Coil 

SMD Chip Coil is made by twisting any conductor wire on a bad conductor base. The base on which the coil is formed is called core. When these coils do not have any base, they are called air core coil. Coil is also known as inductor

A coil always resists any variation in flow of current. If any variable supply is given to any coil, the voltage of opposite polarity is generated in the coil. This property of a coil is known as inductance. Hence, a coil is also called inductor.







The Graphical Symbol of Coil is


Coil is indicated by the alphabet L

The main function of a Coil is to STOP AC and PASS DC.

The Unit of Coil is Henry.





Effect of DC on Coil

A Coil passes DC Current like an ordinary wire. Magnetic properties are generated in the coil on getting DC. The power in the coil attracts iron particles.

Effect of AC on Coil

When AC current or Alternate Current or Variable Electric Current is given to a coil, a variable magnetic electric field is generated in the coil. AC voltage in opposite directions is generated due to this variable magnetic field which resists the AC volt.





SMD Coil on Mobile Phone PCB 






How to Check SMD Coil | Watch Video




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