Chip NTC Thermistor Features • ,ŝŐŚ ƚĞƐƚŝŶŐ ƉƌĞĐŝƐŝŽŶ • ^ƚĞĂĚLJ ŽƉĞƌĂƚŝŶŐ ĨŽƌ ůŽŶŐ ƚŝŵĞ • ZĞĨůŽǁ ƐŽůĚĞƌŝŶŐ ƉŽƐƐŝďůĞ • ^ŚŽƌƚ ƌĞƐƉŽŶƐĞ ƚŝŵĞ Applications • dĞŵƉĞƌĂƚƵƌĞ ŵĞĂƐƵƌĞŵĞŶƚ • ĂƚƚĞƌLJ ĐŚĂƌŐĞƌƐ • dĞŵƉĞƌĂƚƵƌĞ ƐĞŶƐŝŶŐ͕ ƉƌŽƚĞĐƚŝŽŶ ĂŶĚ ĐŽŵƉĞŶƐĂƚŝŽŶ ŝŶ ŝŶĚƵƐƚƌŝĂů͕ ƚĞůĞĐŽŵ ĂŶĚ ĐŽŶƐƵŵĞƌ ĂƉƉůŝĐĂƚŝŽŶƐ • /ŶƌƵƐŚ ĐƵƌƌĞŶƚ ůŝŵŝƚŝŶŐ͕ Ğ͘Ő͘ ŝŶ ƐǁŝƚĐŚͲŵŽĚĞ ƉŽǁĞƌ ƐƵƉƉůŝĞƐ͕ ƐŽĨƚͲƐƚĂƌƚ ŵŽƚŽƌƐ PART NUMBER Example: RND 155QN0402X104F3950FA RND 155QN0402 Type X 104 F 3950 F Delimeter Nominal Resistance Tolerance B Co
Chip NTC Thermistor Test and Measurement Procedures Unless otherwise specified, the standard atmospheric conditions for measurement/test as • Ambient Temperature: 20±15℃ • Relative Humidity: 65±20% • Air Pressure: 86 kPa to 106 kPa If any doubt on the results, measurements/tests should be made within the following limits • Ambient Temperature: 20±2℃ • Relative Humidity: 65±5% • Air Pressure: 86 kPa to 106 kPa Inspection Equipment • Visual Examination: 20x magnifier • Resistance value test: Thermistor resist
Chip NTC Thermistor Reliability Test Item Terminal Strength Standard IEC 60068-2-21 Solder the chip to the testing jig (glass epoxy board shown in the right) using eutectic solder. Then apply a force in the direction of the arrow. Size F Duration 0402, 0603 5N 10N 10 ± 1 s 0805 Resistance to Flexure IEC 60068-2-21 Requirements Test Methods and Remarks Solder the chip to the test jig (glass epoxy board shown in the right) using a eutectic solder.
Chip NTC Thermistor Item Standard Solderability IEC 60068-2-58 Resistance to Soldering Heat Temperature Cycling IEC 60068-2-58 IEC 60068-2-14 Test Methods and Remarks • Solder temperature: 245 ± 5℃ • Duration: 10 ± 1s • Solder: Sn/3.0Ag/0.5Cu • Flux: 25% resin and 75% ethanol in weight 1. No visible damage • Solder temperature: 245 ± 5℃ • Duration: 10±1s • Solder: Sn/3.0Ag/0.
Chip NTC Thermistor Notes & Warnings The RND 155QN series thermistors shall not be operated and stored under the following environmental conditions: • Corrosive or deoxidized atmospheres (such as chlorine, sulfurated hydrogen, ammonia, sulfuric acid, nitric oxide and so on) • Volatile or inflammable atmospheres • Dusty condition • Excessively high or low pressure condition • Humid site • Places with brine, oil, chemical liquid or organic solvent • Intense vibration • Places with analogously deleterious cond
Chip NTC Thermistor R-T Table Temp. (℃) R_Min (Kohm) R_Cent (Kohm) R_Max (Kohm) Res TOL. Temp. TOL.(℃) -40 2,920.332 3,052.414 3,190.151 4.51% 0.67 -39 2,741.958 2,864.149 2,991.486 4.45% 0.67 -38 2,575.527 2,688.600 2,806.356 4.38% 0.66 -37 2,420.174 2,524.839 2,633.768 4.31% 0.66 -36 2,275.101 2,372.011 2,472.801 4.25% 0.65 -35 2,139.573 2,229.326 2,322.612 4.18% 0.65 -34 2,012.908 2,096.056 2,182.419 4.12% 0.64 -33 1,894.480 1,971.528 2,051.504 4.
Chip NTC Thermistor Temp. (℃) R_Min (Kohm) R_Cent (Kohm) R_Max (Kohm) Res TOL. Temp. TOL.(℃) 2 283.052 288.962 294.965 2.08% 0.42 3 269.618 275.111 280.688 2.03% 0.41 4 256.893 262.000 267.181 1.98% 0.40 5 244.839 249.584 254.396 1.93% 0.39 6 233.415 237.824 242.292 1.88% 0.39 7 222.585 226.681 230.829 1.83% 0.38 8 212.317 216.121 219.971 1.78% 0.37 9 202.578 206.109 209.681 1.73% 0.36 10 193.337 196.615 199.928 1.69% 0.36 11 184.568 187.
Chip NTC Thermistor Temp. (℃) R_Min (Kohm) R_Cent (Kohm) R_Max (Kohm) Res TOL. Temp. TOL.(℃) 47 40.071 40.840 41.620 1.91% 0.50 48 38.553 39.308 40.073 1.95% 0.52 49 37.099 37.840 38.592 1.99% 0.53 50 35.708 36.435 37.172 2.02% 0.54 51 34.376 35.088 35.812 2.06% 0.56 52 33.099 33.798 34.509 2.10% 0.57 53 31.877 32.562 33.259 2.14% 0.58 54 30.705 31.377 32.060 2.18% 0.60 55 29.583 30.241 30.911 2.22% 0.61 56 28.507 29.152 29.809 2.25% 0.
Chip NTC Thermistor Temp. (℃) R_Min (Kohm) R_Cent (Kohm) R_Max (Kohm) Res TOL. Temp. TOL.(℃) 92 8.440 8.736 9.041 3.49% 1.18 93 8.184 8.473 8.771 3.52% 1.19 94 7.936 8.219 8.511 3.56% 1.21 95 7.697 7.974 8.260 3.59% 1.23 96 7.467 7.738 8.018 3.62% 1.24 97 7.244 7.509 7.783 3.65% 1.26 98 7.029 7.289 7.557 3.68% 1.28 99 6.821 7.075 7.338 3.71% 1.29 100 6.621 6.869 7.126 3.74% 1.31 101 6.427 6.670 6.922 3.77% 1.33 102 6.240 6.478 6.724 3.
