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 155QN0603X473F3950FB RND 155QN0603 Type X 473 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 1,550.659 1,622.792 1,698.110 4.64% 0.67 -39 1,450.658 1,517.117 1,586.462 4.57% 0.66 -38 1,357.790 1,419.046 1,482.917 4.50% 0.66 -37 1,271.500 1,327.982 1,386.834 4.43% 0.65 -36 1,191.279 1,243.379 1,297.627 4.36% 0.65 -35 1,116.661 1,164.736 1,214.759 4.29% 0.64 -34 1,047.218 1,091.595 1,137.739 4.23% 0.64 -33 982.558 1,023.536 1,066.116 4.16% 0.
Chip NTC Thermistor 2 136.405 139.288 142.217 2.10% 0.41 3 129.759 132.434 135.152 2.05% 0.40 4 123.475 125.958 128.478 2.00% 0.40 5 117.532 119.835 122.172 1.95% 0.39 6 111.898 114.035 116.201 1.90% 0.38 7 106.568 108.549 110.557 1.85% 0.37 8 101.523 103.360 105.220 1.80% 0.37 9 96.747 98.449 100.172 1.75% 0.36 10 92.223 93.801 95.396 1.70% 0.35 11 87.940 89.401 90.878 1.65% 0.34 12 83.880 85.233 86.600 1.60% 0.33 13 80.031 81.283 82.
Chip NTC Thermistor 48 17.857 18.209 18.566 1.96% 0.51 49 17.176 17.522 17.873 2.00% 0.53 50 16.526 16.864 17.209 2.04% 0.54 51 15.903 16.235 16.573 2.08% 0.55 52 15.307 15.632 15.964 2.12% 0.57 53 14.736 15.055 15.380 2.16% 0.58 54 14.189 14.502 14.821 2.19% 0.59 55 13.666 13.972 14.284 2.23% 0.61 56 13.165 13.465 13.771 2.27% 0.62 57 12.684 12.978 13.278 2.31% 0.64 58 12.224 12.512 12.805 2.35% 0.65 59 11.782 12.064 12.352 2.38% 0.
Chip NTC Thermistor 94 3.660 3.791 3.927 3.57% 1.21 95 3.551 3.679 3.812 3.61% 1.22 96 3.445 3.571 3.701 3.64% 1.24 97 3.344 3.467 3.594 3.67% 1.26 98 3.246 3.366 3.491 3.70% 1.27 99 3.151 3.269 3.391 3.73% 1.29 100 3.059 3.175 3.294 3.76% 1.31 101 2.971 3.084 3.201 3.79% 1.33 102 2.885 2.996 3.110 3.82% 1.34 103 2.803 2.911 3.023 3.85% 1.36 104 2.723 2.829 2.938 3.88% 1.38 105 2.646 2.750 2.857 3.91% 1.40 106 2.571 2.673 2.778 3.