THERMISTOR
“Thermistor” is the generic name given to thermally sensitive resistors. Negative temperature coefficient thermistor is
generally called as thermistor. Thermistor is a semi conducting ceramic resistor produced by sintering the materials
at high temperature and made mainly from metal oxide. Depending on the manufacturing method and the structure,
there are many shapes and characteristics for various purposes such as temperature measurement, temperature
compensation etc.
Temp2 [°C] @ Rst2 [KΩ] 2 ~ 40
Temp2 = 95.512 - 23.47 * ln (Rst)
Temp1 [°C] @ Rst2 [KΩ] 0 ~ 70
Temp1 = 110.139 - 28.929 * ln (Rst)
Rst2 [KΩ] @ Temp [°C] 10~80
Rst2 = 58.189 e
(-0.042Temp)
Rst1 [KΩ] @ Temp [°C] 0~180
Rst1 = 48.881 e
(-0.037Temp)
Rst - Thermistor resistant as function at temperature
Temp- Electric motor temperature
203GT-1
TEMPERATURE VS RESISTANCE CHARACTER STICS [ITS-90]
Resistance 20k
Ω
at 25
o
C
Resistance Tolerance ±3 %
B Value 4282K at 25/85
o
C
B Value Tolerance ± 2
Temp. (
o
C) Rmax. (kΩ) Rst. (kΩ) Rmin. (kΩ) Tolerance (
o
C)
-50 2144 1901 1683 -1.6 +1.6
-40 1011 909.0 816.9 -1.5 +1.5
-30 496.9 453.2 413.0 -1.4 +1.4
-20 256.1 236.6 218.4 -1.3 +1.3
-10 137.2 128.3 119.9 -1.2 +1.2
0 76.43 72.32 68.37 -1.0 +1.1
10 44.16 42.24 40.36 -0.9 +0.9
20 26.36 25.47 24.58 -0.7 +0.8
30 16.37 15.82 15.27 -0.8 +0.8
40 10.55 10.10 9.663 -1.0 +1.1
50 6.971 6.620 6.280 -1.3 +1.3
60 4.717 4.444 4.182 -1.6 +1.6
70 3.262 3.050 2.849 -1.9 +1.9
80 2.303 2.138 1.982 -2.2 +2.2
90 1.656 1.527 1.407 -2.5 +2.6
100 1.212 1.111 1.016 -2.8 +2.9
110 0.9013 0.8209 0.7469 -3.2 +3.3
120 0.6802 0.6160 0.5573 -3.6 +3.7
130 0.5203 0.4686 0.4217 -3.9 +4.0
140 0.4033 0.3613 0.3234 -4.3 +4.5
150 0.3163 0.2820 0.2511 -4.7 +4.9
160 0.2509 0.2226 0.1973 -5.2 +5.3
170 0.2011 0.1777 0.1568 -5.6 +5.8
180 0.1629 0.1432 0.1258 -6.1 +6.3
190 0.1331 0.1166 0.1020 -6.5 +6.8
200 0.1097 0.09573 0.08345 -7.0 +7.3
210 0.09122 0.07929 0.06885 -7.5 +7.8
220 0.07644 0.06620 0.05728 -8.1 +8.4
230 0.06453 0.05570 0.04803 -8.6 +9.0
240 0.05489 0.04722 0.04058 -9.2 +9.6
250 0.04700 0.04030 0.03452 -9.8 +10.2
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