TR133 SERIES 200KOhm@25°C THERMISTOR SPECIFICATIONS
 
  General Information
  Interchangeability Tolerance and Accuracy
  Resistance vs Temperature (R-T) Table and Data Download

 General Information

Thermistor is a generic term describing a semiconductor device that exhibits an electrical conductivity that is highly sensitive to temperature. The name was derived from the words, "thermally sensitive resistor". These devices may be either positive temperature coefficient (PTC) or negative temperature coefficient (NTC) with respect to their resistance characteristics with temperature.

Our thermistor sensors have an NTC type resistance versus temperature characteristic. In addition, they have a matched resistance versus temperature curve and are interchangeable from one thermistor to another per the specified tolerance.

The tolerance used for our thermistors is typical in the industry and represents the best compromise between price and what is achievable with good manufacturing practices. Improved interchangeability can be provided at a higher cost. Sensors could also be sorted using third party calibration laboratories, or your own in-house calibrator, to ensure greater accuracy for each sensor installation (controller/sensor combination). Calibration is also useful when two sensors are attached to the same controller, since sensors that match can be selected. Regardless, the tolerances shown are the extreme, as required for engineering calculations. Most sensors are well within the Interchangeability Tolerance shown below.

Our temperature controllers are designed for "end point stability." Generally, for any given set point, control can be matched from controller to controller by making minor adjustments to the set point. With our PC compatible controllers, there is usually an Input Offset feature that can be used to make minor adjustments to the temperature being reported by the sensor.

Base Resistance at 25°C is 200,000 Ohms.

 
 

Interchangeability Tolerance and Accuracy

Note that the tolerance specifications of the sensor do not affect end point temperature control and temperature stability. They affect the accuracy of the temperature being "reported" by the sensor when using a PC compatible temperature controller, or a temperature controller with a front panel display. Our controllers are designed for excellent end point temperature control, but they are not meant to be calibration grade instruments (which are far more expensive). To improve the accuracy of the temperature reported by any of the sensors listed below, calibrate the sensor/controller combination to an in-house or third party standard. If you have a question about the thermistor tolerance specifications as related to your requirements, or about calibration, please  . There are many calibration techniques and tools.

Interchangeability Tolerance and Accuracy:
Warning: We do not recommend exposing the Teflon leads to temperatures greater than 200°C.
 
 
200K
TR133 SERIES THERMISTORS (RoHS Compliant)
TS133 SERIES THERMISTORS (not RoHS Compliant)
200KOhm@25°C | 200000 Ohms@25°C | Based on FENWALL CURVE 16 | Similar to "J" Curve
Downloadable as CSV text file (right-click to download): TR133ResTemp200000.csv
TEMPERATURE vs RESISTANCE TABLE
°C Ohms °C Ohms °C Ohms °C Ohms °C Ohms
20 249256 61 48158 102 12593 143 4125 184 1606
21 238402 62 46458 103 12225 144 4023 185 1572
22 228078 63 44826 104 11869 145 3925 186 1539
23 218253 64 43259 105 11526 146 3829 187 1507
24 208902 65 41754 106 11193 147 3736 188 1476
25 200000 66 40309 107 10872 148 3646 189 1445
26 191522 67 38920 108 10561 149 3558 190 1415
27 183447 68 37585 109 10261 150 3472 191 1386
28 175754 69 36302 110 9970 151 3389 192 1358
29 168422 70 35069 111 9689 152 3309 193 1330
30 161433 71 33883 112 9416 153 3230 194 1303
31 154769 72 32743 113 9153 154 3154 195 1277
32 148414 73 31647 114 8898 155 3080 196 1251
33 142352 74 30592 115 8651 156 3008 197 1226
34 136567 75 29577 116 8413 157 2937 198 1202
35 131047 76 28600 117 8181 158 2869 199 1178
36 125777 77 27660 118 7957 159 2803 200 1154
37 120745 78 26755 119 7740 160 2738 201 1132
38 115939 79 25884 120 7530 161 2675 202 1109
39 111349 80 25045 121 7327 162 2614 203 1088
40 106962 81 24237 122 7129 163 2554 204 1066
41 102771 82 23459 123 6938 164 2496 205 1045
42 98763 83 22709 124 6753 165 2440 206 1025
43 94932 84 21986 125 6574 166 2385 207 1005
44 91268 85 21290 126 6400 167 2331 208 986
45 87763 86 20619 127 6231 168 2279 209 967
46 84410 87 19972 128 6067 169 2228 210 948
47 81202 88 19348 129 5909 170 2179 211 930
48 78130 89 18746 130 5755 171 2131 212 913
49 75190 90 18166 131 5606 172 2084 213 895
50 72374 91 17606 132 5461 173 2038 214 878
51 69678 92 17066 133 5321 174 1993 215 862
52 67094 93 16544 134 5184 175 1950 216 846
53 64619 94 16041 135 5052 176 1908 217 830
54 62247 95 15556 136 4924 177 1867 218 815
55 59973 96 15087 137 4799 178 1826 219 799
56 57793 97 14634 138 4678 179 1787 220 785
57 55703 98 14197 139 4561 180 1749
58 53698 99 13775 140 4447 181 1712
59 51775 100 13367 141 4337 182 1675
60 49929 101 12973 142 4229 183 1640