Arrhenius/FIT Rate Calculator

FIT with a single group
 
Confidence
 %
Total Tested
 Hours Tested
 Dev Hrs
 Fails
 Use Temp (°C)
 Test Temp (°C)
 Ea (eV)
 kT1 (eV)
 kT2 (eV)
 A accel factor
 Dev Hrs * A
 FIT Rate
    

     
    FIT with a combination of two groups tested at different temperatures
     
    Group 1 Total Tested
    		 Hours Tested
    		 Dev Hrs
    		 Fails
    		 Use Temp (°C)
    		 Test Temp (°C)
    		 Ea (eV)
    		 at Tuse
    kT1 (eV)
    		 at Ttest
    kT2 (eV)
    		 A accel factor
    		 Dev Hrs * A
    		    
    Group 2
    Group 2
    2nd TP
    Combined Totals Total dev hrs * A factor =
            Total Fails
    		 Confidence
     %
    		  Combined
    FIT Rate
    		            
     
       

       

      Confidence: Enter as a whole number. E.g., for 90%, enter 90. Total Tested: Enter the total number of parts tested.
      Hours Tested: Enter the number of hours tested. Dev Hrs: This is a calculated field.
      Fails: Enter the total number of failures. Use Temp (°C): Enter the usage temperature.
      Test Temp (°C): Enter the test temperature. Ea (eV): Enter the Ea information.
      kT1 (eV): This is a calculated field. kT2 (eV): This is a calculated field.
      A accel factor: This is a calculated field. Dev Hrs * A: This is a calculated field.
      FIT Rate: This is a calculated field. Calculate: Totals the calculations when pressed.