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     (0402 8 Elements )

  J = +-5%, F = +-1% 

 Zero Ohm Jumper < 50mohm

  Item 5.1

  J: R <= ( 2%+ 0.1ohm )          

  F: R <= ( 1%+ 0.05ohm )

 Item 5.5

 2.5xRated voltage ( Max. Overload Voltage )

 for 5 sec.  Measure  resistance after 30

 minutes.

 Over 95% of termination

 must be covered with solder

  Item 6.5

  After immersion flux, dip in the 235^o+-5^oC

  molten solder bath for 2+-0.5 sec.

  J:  R <= ( 1%+0.1ohm )          

  F:  R <= ( 0.5%+0.05ohm )      

  No mechanical damage

  Item 6.4

  With 260^o+-5^oC for 10+-1 sec.

 Temperature Coefficient of 

 Resistance (TCR)

  J: +-200ppm/^oC                  

  F: +-50ppm/^oC, +-100ppm/^oC

 Item 5.2

 Test temperature: 25^oC ~ -55^oC

                              25^oC ~ 125^oC          

  TCR(ppm/^oC)=  R₂-R_{1    x}      1      _x 10⁶

                                     R1           T1-T2            

    T₁:25^oC     T₂: Test Temperature           

 R₁=Resistance at reference temperatureT₁

 R₂=Resistance at test temperature T₂

  J : R <=  ( 3%+0.1 ohm )

  F : R <= ( 1%+0.05 ohm )

 Item 7.9

 Maintain the temperature of the resistor at 40^o

 +-2^oC, and 90-95%RH with the rated voltage    

 applied.  Cycle ON for 1.5 hours and OFF for

 0.5 hour for 1000+48-0 hours. 

 After 1 hour, measure the resistance value.

  J: R <= ( 1%+0.1ohm )     

  F: R <= ( 0.5%+0.05ohm )

 Item 7.4

 Repeat 5 cycles as follows : -55^oC(30minutes)

  , +25^oC(10~15 minutes) +125^oC(30minutes),

    +25^oC(10~15 minutes)

  J: R <= ( 3%+0.1ohm )  

  F: R <= ( 1%+0.05ohm )

  Item 7.10

Permanent resistance change after 1000 +48,

 - 0hours(1.5 hours ON, 0.5 hour OFF at RCWV

 or Max. keep the resistor at  70+-3^oC ambient

 temperature.

  R <= ( 1%+0.1ohm )   

  No mechanical damage

 Item 6.1

 500g for 10 seconds.

Supertech

Copyright  2005. 11