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Technical Reference - Thermistor Resistance Table

 

Copper

Nickel

Nickel-Iron

Thermistors*

Element code CA NA FA FB FC TA TB TF TK
Base resistance 10 Ohms at 25°C 120 Ohms at 0°C 604 Ohms at 0°C 1000 Ohms at 70°F 2000 Ohms at 70°F 2252 Ohms at 25°C 10k Ohms at 25°C 50k Ohms at 25°C 10k Ohms at 25°C
TCR (Ohms/Ohms/°C) 0.00427 0.00672 0.00518 0.00527 0.00527
R25  = 29.2

R125
R25  = 23.5

R125
R25  = 31.2

R125
R25  = 26.6

R125
Sensitivity 
(Average Ohms/°C)
0.039 0.806 3.133 4.788 9.576 -72 -287 -1523 -324
Temperature (°C) Resistance (ohms)
-100 5.128   372.79            
-80 5.923 66.6 410.73     1660 K 3558 K    
-60 6.712 79.62 452.82     316.5 K 845.9 K    
-40 7.49 92.76 499.06     75.79 K 239.8 K 1380 K 348.9 K
-20 8.263 106.15 549.46 826.9 1653.81 21.87 K 78.91 K 431.8 K 100.2 K
  0 9.035 120 604 908.4 1816.81 7355 29.49 K 155.6 K 33.15 K
 20 9.807 134.52 660.97 995.04 1990.09 2814 12.26 K 62.24 K 12.52 K
 40 10.58 149.79 720.79 1086.49 2172.99 1200 5592 26.64 K 5323
 60 11.352 165.9 783.45 1182.5 2365.01 560.3 2760 12.31 K 2510
 80 12.124 182.84 848.97 1282.83 2565.66 282.7 1458 6117 1293
100 12.897 200.64 917.33 1387.21 2774.44 152.8 816.8 3256 718.5
120 13.669 219.29 988.54 1495.42 2990.84 87.7 481.8 1836 425
140 14.442 238.85 1062.6 1607.18 3214.37 53 297.2    
160 15.217 259.3 1139.5 1722.26 3444.54        
180 15.996 280.77 1219.26 1840.41 3680.84        
200 16.776 303.46 1301.86 1961.38 3922.77        
220 17.555 327.53              
240 18.335 353.14              
260 19.116 380.31