The Thermistor and the RTD both are the temperatures measuring device. B values for common NTC materials range from 2000 through 5000 K. Figure 1 illustrates the de- 0000012671 00000 n Thermistor Description Thermistor Overview BAPI Thermistors are thermally sensitive resistors known for exhibiting a large change in resistance with only a small change in temperature. 2 Sensor Type 1. 0000038103 00000 n 0000054866 00000 n Another way to calculate the Thermistor RT Curve is to use the Steinhart-Hart method. 0000087918 00000 n P/N 1600-10K Thermistor The enclosed negative temperature coefficient (NTC) thermistor, p/n 1600-10K, works by translating temperature into resistance, with resistance decreasing as temperature increases (hence the ‘negative coefficient’). 0000012133 00000 n 0000013732 00000 n thermistor’s change in resistance is non-linear. 0000019749 00000 n An NTC thermistor is a thermally sensitive resistor whose resistance exhibits a large, precise and predictable decrease as the core temperature of the resistor increases over the operating temperature range. It follows a pre-defined curve which is provided by the thermistor manufacturer. 0000024318 00000 n 0000096997 00000 n 0000055256 00000 n 0000116810 00000 n 0000050464 00000 n Alternate Energy Technologies (AET) is America's largest manufacturer of flat-plate, solar thermal collectors.We provide turnkey commercial solar water heating solutions as well as pre-engineered residential systems. 0000003089 00000 n 0000068994 00000 n xref A 10K resistor will always restrict 10,000 ohms of an electrical current. All resistors have some dependency on temperature, which is described by their temperature coefficient . In the standard Steinhart-Hart equation the C parameter is set to zero. 0000054410 00000 n PN 1600-10K Thermistor Thermistor Resistance vs Temperature Chart The enclosed negative temperature coefficient (NTC) thermistor, pn 1600-10K. Vishay Dale NTC Thermistors, Resistance/Temperature Conversion www.vishay.com For technical questions, contact: thermistor1@vishay.com Document Number: 33011 12 Revision: 18-Jun-10 CURVE 3 R/T CONVERSION TABLE Rt/R25 TEMP. 0000037837 00000 n 6 0 obj <> endobj %%EOF Technical Specifications. 0000006678 00000 n 0000069473 00000 n Int. °C Rt/R25 TEMP. 0000001376 00000 n startxref 0000129298 00000 n Fax +44 (0) 1732 861226 Thermistor Types and Compatibility Chart. 0000001635 00000 n 0000002680 00000 n You can lookup other test values in the Temperature vs Resistance Conversion Chart for 10k Thermistors. 6 54 0000117145 00000 n 0000024216 00000 n °C Rt/R25 TEMP. 0000129088 00000 n 2)The register of value 470*10^6 Ω+- 20% will have the colour code yellow, violet, black, blue and 5th band will be absent. of ±0-2°C interchangeable thermistor. 0000069254 00000 n 1/T = 1/298.15 + 1/3380 * ln ((1023 / 366) - 1) 1/T = 0.003527 T = 283.52K – 273.15K = 10.37°C The lowering, or rise, depends on the type of thermistor per degree Kelvin. Resistance at 25 degrees C: 10K +- 1%. 10K-Thermistor Output Table 10K-Thermistor Output Table 10K-Thermistor Output Table. However, some manufacturers use all 4 coefficients. 0000002108 00000 n As can be seen be the graph, the resistance of the thermistor drops very quickly. The thermistor temperature may be changed by the surrounding temperature or by self-heating the thermistor by passing a current through it. of Teflon encased thermistors add 100 to part No. 0000128823 00000 n Selecting and Using Thermistors for Temperature Control Thermally sensitive resistors (thermistors) are The beta constant for the thermistor is 3380, the thermistor resistance (R0) at 25°C is 10K ohms, and the ADC returns a value 366. 441is a Teflon encased thermistor with the same resistance values. Dissipation factor (loss-rate of energy of a mode of oscillation) δ th = (in air)approx.7.5mW/K. 0000022652 00000 n %PDF-1.4 %���� 0000145645 00000 n Following on from "Testing a boiler thermistor" in Thermistors, please use the readings in the table below as an approximate expected multimeter reading of different thermistors from from the respective model as indicated.Manufacturers include Ravenheat, Radiant, Saunier Duval, Sime, Viessman, Vaillant, Vokera, Worcester, It follows a pre-defined curve which is provided by the thermistor manufacturer. 72 A - 10K3A1 Sensor type: Thermistor, temp coef. NTC Thermistors are ideal for applications requiring a continuous change of resistance with temperature. It is important to note that a thermistor’s change in resistance is non-linear. X��c�1 �C1C8� C4C3�SF'�u\^\�/Zt�k�{y��s�����e�7�`جw�� �����XM��u. 0000069785 00000 n 0000013399 00000 n 500 1K 2.5K 5K 10K 25K 50K 100K 10 20 30 40 50 Temperature (oC) Thermistor R/T Curves For Varying Room Temperature Resistances Resistance (thousands) Figure 1. trailer 0000000016 00000 n To test the device a 10K ohn resistor can be plugged in in-place of the thermistor cable and the device should read it as 77F (25C) degrees. For Part No. Pentair Compool Fig 1. Resistance @ +25°C Ohms 10,000 10K3A1A Resistance tolerance from 0°C to +70°C °C 0.1 10K3A1B Resistance tolerance from 0°C to +70°C °C 0.2 10K3A1C Resistance tolerance from 0°C to +70°C °C 0.5 10K3A1D Resistance tolerance from 0°C to +70°C °C 1.0 Alpha Value @ … 44016 44116 10K 3891 29.26 150°C -80-+120°CB 44006 44106 10K 3574 23.51 150°C -80-+120°CH 44008 44108 30K 3810 29.15 150°C -80-+120°CH 44011 44111 100K 3988 34.82 150°C -80-+120°CH 44014 44114 300K 4276 46.02 150°C -80-+120°CH ... resistance in thermistor components. 7 - 10,000 ohm NTC thermistor (Type III) 10 - 3,000 ohm NTC thermistor 12- 10,000 ohm NTC thermistor (Type II) 13 - 5,000 ohm NTC thermistor 14 - 1,035 ohm Silicon PTC 15- 100,000 ohm NTC thermistor 16- 10,000 ohm NTC thermistor (Eliwell) 17- 20,000 ohm NTC thermistor 18- 2,252 ohm NTC thermistor 21 - 1,800 ohm NTC thermistor : Sensor Type (°C) 0000103196 00000 n 0000050551 00000 n 0000145393 00000 n The sensor can be tested with a multimeter. The major difference between the RTD and the Thermistor is that the RTD is made of metal, whereas the semiconductor material is used for Thermistor. Resistors are great for use in electronics, for example, because of this stable characteristic. 0000001890 00000 n 3k 10kType 10kType 10kDale 10k3A210kG US 20k. A 10K thermistor, however, will only restrict 10,000 ohms of a current at 25℃. It should read 10,000 ohms at 77F (25C) degrees. Temperature vs. Resistance Chart Thermistor @ 25°C Ohms °F °C Resistance 10K OPEN INFINITE 32 0 32,630 41 5 25,380 50 10 19,890 59 15 15,710 68 20 12,490 77 25 10,000 86 30 8,057 95 35 6,531 104 40 5,326 113 45 4,368 122 50 3,601 131 55 2,985 140 60 2,487 149 65 2,082 158 70 1,751 1) If the bands on the body of the resistor are red, red, black, orange and gold then the register value is 220 *10^3 and its tolerance is 5% that is 220 kΩ+- 5%. 0000050185 00000 n Resistance-Temperature response curves for nine common thermistors. NTC Thermistors. 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