SG220 SG313 10 15 3 0.200 0.450 0.300 0.032 A 17
SG42 SG338 10 15 5 0.200 0.600 0.350 0.040 A 44
SG27 SG314 10 15 6 0.150 0.500 0.350 0.040 A 40
SG40 SG72 10 20 8 0.100 0.900 0.350 0.040 J 50
SG451 SG374 12 15 4 0.220 0.500 0.350 0.040 A 40
SG452 SG375 15 15 2.5 0.330 0.550 0.300 0.032 A 40
SG86 16 25 1.7 0.600 0.530 0.300 0.025 A 45
SG414 16 25 2.7 0.400 0.530 0.300 0.025 A 45
SG63 SG320 16 25 4.0 0.250 0.750 0.250 0.040 J 50
SG230 SG315 20 15 1.75 0.600 0.500 0.300 0.032 A 31
SG411 SG341 25 25 1.7 0.600 0.500 0.300 0.032 A 30
SG412 SG342 25 25 2.4 0.400 0.500 0.300 0.032 A 30
SG38 SG343 30 15 3.0 0.400 0.600 0.250 0.040 B 25
SG240 SG316 40 15 2.0 0.600 0.625 0.250 0.032 B 20
SG52 SG344 47 25 3.0 0.500 0.770 0.240 0.040 B 55
SG453 SG376 60 15 1.5 1.000 0.600 0.250 0.032 B 50
SG250 SG317 120 15 3.0 0.900 0.925 0.250 0.040 C 36
SG31 SG346 220 20 1.3 1.900 0.600 0.300 0.040 C 25
For applications requiring ratings not shown, contact RTI Electronics, Inc. applications engineering.
Maximum operating voltage is 265V RMS.
*Maximum operating voltage is 120V RMS
NTC Resistance Temperature Conversion Tables
Temp
°C
R-T Curve A R-T Curve B R-T Curve C R-T Curve J
RT/R25 DEV RT/R25 DEV RT/R25 DEV RT/R25 DEV
-60 43.0 75.0 6.6 140.5 6.6 52.5
-55 31.9 54.1 6.1 96.4 6.1 39.0
-50 24.3 39.7 5.6 67.0 5.6 29.2 18.5
-45 18.6 29.2 5.2 47.2 5.2 22.1 17.0
-40 14.4 7.6 21.7 4.7 33.7 4.7 16.9 15.4
-35 11.3 6.9 16.4 4.3 24.3 4.3 13.0 14.0
-30 8.93 6.2 12.5 3.8 17.7 3.8 10.1 12.5
-25 7.10 5.6 9.58 3.4 13.0 3.4 7.90 11.2
-20 5.69 5.0 7.42 3.0 9.71 3.0 6.24 9.9
-15 4.56 4.4 5.75 2.6 7.30 2.6 4.96 8.7
-10 3.68 3.7 4.50 2.2 5.53 2.2 3.97 7.4
-5 2.99 3.1 3.55 1.9 4.23 1.9 3.20 6.2
0 2.45 2.5 2.82 1.5 3.27 1.5 2.60 5.0
5 2.02 2.0 2.26 1.2 2.54 1.2 2.12 3.9
10 1.68 1.6 1.83 0.8 1.99 0.8 1.74 2.7
15 1.42 1.1 1.48 0.5 1.57 0.5 1.44 1.6
20 1.18 0.6 1.22 0.2 1.25 0.2 1.20 0.5
25 1.00 0.0 1.00 0.0 1.00 0.0 1.00 0.0
30 0.854 0.6 0.828 0.4 0.806 0.4 0.841 1.4
35 0.732 1.1 0.689 0.7 0.653 0.7 0.710 2.3
40 0.628 1.6 0.576 1.0 0.533 1.0 0.602 3.2
45 0.537 2.0 0.482 1.3 0.437 1.3 0.513 4.3
50 0.464 2.5 0.406 1.5 0.360 1.5 0.439 5.0
55 0.403 3.0 0.343 1.8 0.299 1.8 0.377 5.9
60 0.350 3.4 0.292 2.0 0.249 2.0 0.326 6.7
65 0.305 3.8 0.247 2.3 0.208 2.3 0.282 7.5
70 0.267 4.2 0.212 2.5 0.175 2.5 0.245 8.2
75 0.236 4.6 0.182 2.8 0.148 2.8 0.214 9.0
80 0.208 4.9 0.157 3.0 0.126 3.0 0.188 9.8
85 0.183 5.3 0.137 3.2 0.107 3.2 0.165 10.5
90 0.163 5.6 0.120 3.4 0.0916 3.4 0.146 11.2
95 0.145 6.0 0.105 3.6 0.0787 3.6 0.129 11.9
100 0.130 6.3 0.0920 3.8 0.0679 3.8 0.114 12.6
105 0.117 6.7 0.0812 4.0 0.0588 4.0 0.102 13.3
110 0.105 7.0 0.0723 4.2 0.0511 4.2 0.0908 13.9
115 0.0943 7.3 0.0641 4.4 0.0445 4.4 0.0813 14.4
120 0.0852 7.6 0.0569 4.6 0.0389 4.6 0.0730 14.9
125 0.0771 7.9 0.0508 4.8 0.0342 4.8 0.0657 15.6
130 0.0700 8.2 0.0455 4.9 0.0301 4.9 0.0593 16.3
135 0.0636 8.4 0.0408 5.1 0.0265 5.1 0.0536 17.0
140 0.0579 8.6 0.0368 5.3 0.0235 5.3 0.0486 17.6
145 0.0529 9.0 0.0332 5.4 0.0208 5.4 0.0442 18.0
150 0.0483 9.3 0.0300 5.5 0.0185 5.5 0.0402 18.4
NTC Resistance Temperature Curve Characteristics
R-T Curve A B C J
Temp. Coeff @ 25°C -3.3%/°C -3.9%/°C -4.4%/°C -3.5%/°C
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