Potentiometer is common electronics component,the potentiometer’s volume is bigger than resistance,the potentiometer has different shapes,various potentiometer’s feature are various.
1.Rotary single potentiometer:this is a round potentiometer,it has a metal stem and the stem’s length depends on different potentiometers.sometime,it will be very long ,on the contrast,totally short.The rotary handle can be rotated left and right within certain angle,except 360°。This potentiometer has 3 pins leads or 4 pins leads,the fourth lead is used for connected with external shell(ground pin ),when you use it to connect the ground to eliminate the trouble from human body.
2.Straight slide single potentiometer:it’s rectangle potentiometer.which has vertical handle,so you are limited to straightly slide ,the leads on the under part
3.Rotary double potentiometer:it close to rotary potentiometer,but is constitutes of two single potentiometer,and each potentiometer are same feature.using a rotary handle to control and adjust two single potentiometer;each single potentiometer has 3 leads.
4.Straightly double potentiometer:itit close to rotary potentiometer,but is constitutes of two single potentiometer,and each potentiometer are same feature.using a rotary handle to control and adjust two single potentiometer;each single potentiometer has 3 leads.
5.Straightly slide SMD potentiometer:straightly SMD potentiometer doesn’t has leads.which volume is smaller than ordinary potentiometer,and mainly applied on tiny volume electrical appliances.
6.Rotary SMD potentiometer:rotary SMD potentiometer is same with ordinary rotary potentiometer,which was rotated to change the resistance value
7.Wire-wound multi-circle potentiometer:this type structure of potentiometer is different from ordinary potentiometer,and the withstand power is heavy,and the adjust resistance can be over than 360° rotation.
8.Precise potentiometer:highly adjustable precision and always uses in precise circuit
9.The potentiometer with switch:it was always drew the controller,which has power switch.when the potentiometer rotating,it connects the switch contact point of potentiometer,then adjust the potentiometer when rotating.This kind of potentiometer has many types,such as Volume potentiometers in radios and switches in some larger rotary potentiometers.Its leads is more than other common potentiometer,the two leads is the contact pins of power switch.