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1.General
1.1Application:This specification is applied to potentiometers used for electronic equipment.
1.2Standard atmospheric conditions：
 Unless otherwise specified,the standard range of atmospheric conditions for making measurements and test is per the following limits:
  Ambient temperature ：15℃ to 35℃
   Relative humidity   ： 25% to 75%
   Air pressure        ： 86 kpa to 106 kpa
1.3Operating temperature range   ：-20℃  to  +70℃
1.4Suggested storage period      ：About 6 months
2．Electronic Specification :
 

	Item	Conditions	Specifications
2.1	Total resistance	Measurement shall be made by the resistance between terminal 1 and 3 with lever settled at terminal 1 or 3.	10KΩ
2.2	Total resistance tolerance		±10%
2.3	Resistance taper	Measurement shall be made by the resistance law method.Measurement stall be made at the position of right diagram from the edge at the side of terminal 1.When based on terminal 3.  from the edge at the side of terminal 3.   Out voltage between terminals1and2 --------------------------------------------------- X 100% Applied voltage between terminals 1and 3	B
2.4	Residual Resistance		10Ω

2．Electronic Specification :

	Item	Conditions	Specifications
2.6	Rated voltage	Rated voltage  E=√P.R (V) P: power rating R: nominal total resistance When the rated voltage exceeds the maximum operating voltage, the maximum operating voltage shall be the rated voltage	AC 200 V
2.7	Rotational noise	Dc 20V,when the rated voltage is 20v or less, its rated voltageShall be applied to the terminals between 1 and 3.And then the Procedures, refer to IEC 393-1-4.15   Traveling speed:20=/sec	Less than  47mV
2.8	Insulation resistance	A voltage of 500VAC shall be applied for1min,after which measurement shall be made	100 MΩor more
2.9	Withstand voltage	Trip curr ant:2mA  Measuring frequency:50/60Hz 500V AC for 1min.	Without damage to parts, Arcing or breakdown etc

 
. Mechanical Specification :
 

	Item	Conditions	Specifications
3.1	Total rotation angle		300°±10°
3.2	Rotation torque		20∽200gf.cm
3.3	Rotation stop strength		5kgf.cm Max
3.4	Push-pull strength		8kgf  Max
3.5	Rotation life		5,000 Cycles Min