B57164K0221K000

NTC thermistors for temperature measurement Leaded NTC thermistors, lead spacing 5 mm Series/Type: Date: B57164K February 2009 © EPCOS AG 2009. Reproduction, publication and dissemination of this publication, enclosures hereto and the information contained therein without EPCOS' prior express consent is prohibited. Temperature measurement and compensation Leaded NTC thermistors, lead spacing 5 mm B57164K K164 Applications Temperature measurement and compensation Features Wide resistance range Cost-effective Lacquer-coated thermistor disk Tinned copper leads Lead spacing 5 mm Marked with resistance and tolerance Delivery mode Bulk (standard), cardboard tape, reeled or in Ammo pack on request Dimensional drawing Dimensions in mm Approx. weight 0.4 g General technical data Climatic category Max. power Resistance tolerance Rated temperature Dissipation factor Thermal cooling time constant Heat capacity (IEC 60068-1) (at 25 °C) 55/125/21 450 ±5, ±10 25 approx. 7.5 approx. 20 approx. 150 (in air) (in air) P25 ∆RR/RR TR δth τc Cth mW % °C mW/K s mJ/K Please read Cautions and warnings and Important notes at the end of this document. Page 2 of 24 Temperature measurement and compensation Leaded NTC thermistors, lead spacing 5 mm B57164K K164 Electrical specification and ordering codes R25 Ω 15 22 33 47 68 100 150 220 330 470 680 1k 1.5 k 2.2 k 3.3 k 4.7 k 6.8 k 10 k 15 k 22 k 33 k 47 k 68 k 100 k 150 k 220 k 330 k 470 k + = Resistance tolerance J = ±5% K = ±10% No. of R/T characteristic 1203 1203 1203 1302 1303 1305 1305 1305 1306 1306 1307 1011 1013 1013 4001 4001 2903 2904 1014 1012 1012 4003 2005 2005 2005 2007 2006 2006 B25/100 K 2900 ±3% 2900 ±3% 2900 ±3% 3000 ±3% 3050 ±3% 3200 ±3% 3200 ±3% 3200 ±3% 3450 ±3% 3450 ±3% 3560 ±3% 3730 ±3% 3900 ±3% 3900 ±3% 3950 ±3% 3950 ±3% 4200 ±3% 4300 ±3% 4250 ±3% 4300 ±3% 4300 ±3% 4450 ±3% 4600 ±3% 4600 ±3% 4600 ±3% 4830 ±3% 5000 ±3% 5000 ±3% Ordering code B57164K0150+000 B57164K0220+000 B57164K0330+000 B57164K0470+000 B57164K0680+000 B57164K0101+000 B57164K0151+000 B57164K0221+000 B57164K0331+000 B57164K0471+000 B57164K0681+000 B57164K0102+000 B57164K0152+000 B57164K0222+000 B57164K0332+000 B57164K0472+000 B57164K0682+000 B57164K0103+000 B57164K0153+000 B57164K0223+000 B57164K0333+000 B57164K0473+000 B57164K0683+000 B57164K0104+000 B57164K0154+000 B57164K0224+000 B57164K0334+000 B57164K0474+000 Please read Cautions and warnings and Important notes at the end of this document. Page 3 of 24 Temperature measurement and compensation Leaded NTC thermistors, lead spacing 5 mm B57164K K164 Reliability data Test Storage in dry heat Standard IEC 60068-2-2 Test conditions ∆R25/R25 (typical) < 3% Remarks No visible damage Storage in damp heat, steady state Rapid temperature cycling Endurance Long-term stability (empirical value) Storage at upper category temperature T: 125 °C t: 1000 h IEC Temperature of air: 40 °C 60068-2-78 Relative humidity of air: 93% Duration: 21 days IEC Lower test temperature: 55 °C 60068-2-14 Upper test temperature: 125 °C Number of cycles: 100 Pmax: 450 mW t: 1000 h Temperature: 70 °C t: 10000 h < 3% No visible damage No visible damage No visible damage No visible damage < 3% < 3% < 5% Please read Cautions and warnings and Important notes at the end of this document. Page 4 of 24 Temperature measurement and compensation Leaded NTC thermistors, lead spacing 5 mm B57164K K164 R/T characteristics R/T No. T (°C) 55.0 50.0 45.0 40.0 35.0 30.0 25.0 20.0 15.0 10.0 5.0 0.0 5.0 10.0 15.0 20.0 25.0 30.0 35.0 40.0 45.0 50.0 55.0 60.0 65.0 70.0 75.0 80.0 85.0 90.0 95.0 100.0 105.0 110.0 115.0 120.0 125.0 1011 1012 1013 B25/100 = 3730 K B25/100 = 4300 K B25/100 = 3900 K RT/R25 α (%/K) RT/R25 α (%/K) RT/R25 α (%/K) 70.014 49.906 36.015 26.296 19.411 14.479 10.903 8.2923 6.3591 4.9204 3.8279 3.0029 2.3773 1.8959 1.5207 1.228 1.0000 0.81779 0.67341 0.55747 0.46357 0.3874 0.32368 0.272 0.23041 0.19604 0.16735 0.14342 0.12347 0.10668 0.092734 0.080903 0.070616 0.061826 0.054282 0.047793 0.042249 6.9 6.7 6.4 6.2 6.0 5.8 5.6 5.4 5.2 5.1 4.9 4.8 4.6 4.5 4.3 4.2 4.1 3.9 3.8 3.7 3.6 3.6 3.5 3.4 3.3 3.2 3.1 3.0 3.0 2.8 2.8 2.8 2.7 2.6 2.6 2.5 2.4 87.237 62.264 44.854 32.599 23.893 17.654 13.098 9.8059 7.4266 5.6677 4.3213 3.3208 2.5842 2.0238 1.5858 1.2507 1.0000 0.7964 0.64053 0.51772 0.41958 0.34172 0.27877 0.22861 0.18872 0.15645 0.13012 0.10863 0.091115 0.0767 0.064867 0.055047 0.046797 0.039904 0.034255 0.029498 0.025448 6.8 6.7 6.5 6.3 6.1 6.0 5.8 5.7 5.5 5.4 5.3 5.1 5.0 4.9 4.8 4.7 4.5 4.4 4.3 4.2 4.1 4.1 4.0 3.9 3.8 3.7 3.6 3.6 3.5 3.4 3.3 3.3 3.2 3.1 3.1 3.0 3.0 77.285 54.938 39.507 28.722 21.099 15.652 11.715 8.8541 6.7433 5.1815 4.0099 3.1283 2.4569 1.9438 1.5475 1.2403 1.0000 0.81104 0.66146 0.54254 0.44727 0.37067 0.30865 0.25825 0.21707 0.18323 0.15535 0.13223 0.11302 0.096951 0.083487 0.072139 0.062559 0.054425 0.047508 0.041594 0.036532 7.0 6.7 6.5 6.3 6.1 5.9 5.7 5.6 5.4 5.2 5.1 4.9 4.8 4.6 4.5 4.4 4.3 4.1 4.0 3.9 3.8 3.7 3.6 3.5 3.4 3.3 3.3 3.2 3.1 3.0 3.0 2.9 2.8 2.8 2.7 2.6 2.6 Please read Cautions and warnings and Important notes at the end of this document. Page 5 of 24 Temperature measurement and compensation Leaded NTC thermistors, lead spacing 5 mm B57164K K164 R/T characteristics R/T No. T (°C) 55.0 50.0 45.0 40.0 35.0 30.0 25.0 20.0 15.0 10.0 5.0 0.0 5.0 10.0 15.0 20.0 25.0 30.0 35.0 40.0 45.0 50.0 55.0 60.0 65.0 70.0 75.0 80.0 85.0 90.0 95.0 100.0 105.0 110.0 115.0 120.0 125.0 1014 1203 1302 B25/100 = 4250 K B25/100 = 2900 K B25/100 = 3000 K RT/R25 α (%/K) RT/R25 α (%/K) RT/R25 α (%/K) 83.935 60.228 43.593 31.815 23.404 17.349 12.946 9.7439 7.3737 5.6247 4.3063 3.3221 2.5779 2.0144 1.5848 1.2547 1.0000 0.79913 0.64287 0.51991 0.42299 0.34573 0.28298 0.23277 0.19262 0.16005 0.13349 0.11175 0.093934 0.079231 0.067054 0.056932 0.048591 0.041605 0.035653 0.030636 0.026454 6.8 6.6 6.4 6.3 6.1 6.0 5.8 5.7 5.5 5.4 5.3 5.2 5.0 4.9 4.8 4.6 4.6 4.4 4.3 4.2 4.1 4.1 4.0 3.8 3.8 3.7 3.6 3.5 3.5 3.4 3.3 3.2 3.1 3.1 3.1 3.0 2.9 30.252 22.966 17.612 13.65 10.671 8.4216 6.7001 5.3757 4.3443 3.5376 2.8995 2.3929 1.9866 1.6596 1.3941 1.1777 1.0000 0.85337 0.7317 0.63032 0.54534 0.47384 0.41336 0.36201 0.31822 0.28073 0.2485 0.22069 0.19663 0.17572 0.1575 0.14157 0.1276 0.11531 0.10447 0.094881 0.086371 5.6 5.4 5.2 5.0 4.8 4.7 4.5 4.3 4.2 4.1 3.9 3.8 3.7 3.5 3.4 3.3 3.2 3.1 3.0 2.9 2.9 2.8 2.7 2.6 2.5 2.5 2.4 2.3 2.3 2.2 2.2 2.1 2.1 2.0 2.0 1.9 1.9 33.701 25.252 19.149 14.684 11.38 8.9067 7.0357 5.6065 4.5044 3.6471 2.9746 2.4429 2.0194 1.6797 1.4053 1.1823 1.0000 0.85007 0.72608 0.623 0.53685 0.46453 0.40357 0.35193 0.30799 0.27047 0.23832 0.21067 0.18677 0.16607 0.14805 0.13233 0.11862 0.1066 0.096009 0.086667 0.078398 5.9 5.7 5.4 5.2 5.0 4.8 4.6 4.5 4.3 4.2 4.0 3.9 3.8 3.6 3.5 3.4 3.3 3.2 3.1 3.0 2.9 2.9 2.8 2.7 2.6 2.6 2.5 2.4 2.4 2.3 2.3 2.2 2.2 2.1 2.1 2.0 2.0 Please read Cautions and warnings and Important notes at the end of this document. Page 6 of 24 Temperature measurement and compensation Leaded NTC thermistors, lead spacing 5 mm B57164K K164 R/T characteristics R/T No. T (°C) 55.0 50.0 45.0 40.0 35.0 30.0 25.0 20.0 15.0 10.0 5.0 0.0 5.0 10.0 15.0 20.0 25.0 30.0 35.0 40.0 45.0 50.0 55.0 60.0 65.0 70.0 75.0 80.0 85.0 90.0 95.0 100.0 105.0 110.0 115.0 120.0 125.0 1303 1305 1306 B25/100 = 3050 K B25/100 = 3200 K B25/100 = 3450 K RT/R25 α (%/K) RT/R25 α (%/K) RT/R25 α (%/K) 34.363 25.827 19.635 15.089 11.712 9.1774 7.2552 5.7835 4.6467 3.7611 3.0547 2.4986 2.0575 1.7051 1.421 1.191 1.0000 0.85053 0.72386 0.61897 0.53134 0.45814 0.39637 0.34439 0.30081 0.26372 0.23212 0.20501 0.1815 0.16117 0.1433 0.12775 0.11458 0.10306 0.092752 0.083677 0.075739 5.8 5.6 5.4 5.2 5.0 4.8 4.6 4.5 4.3 4.2 4.1 4.0 3.8 3.7 3.6 3.6 3.3 3.3 3.2 3.1 3.0 2.9 2.9 2.7 2.7 2.6 2.5 2.5 2.4 2.4 2.3 2.2 2.1 2.1 2.1 2.0 2.0 42.131 31.129 23.273 17.592 13.438 10.366 8.1005 6.3856 5.0364 4.0067 3.2217 2.6097 2.126 1.7438 1.4415 1.1987 1.0000 0.84185 0.7108 0.60317 0.51419 0.44037 0.37824 0.32636 0.28333 0.24697 0.21573 0.18908 0.16649 0.14709 0.13021 0.1156 0.10301 0.092038 0.082442 0.074035 0.066701 6.2 5.9 5.7 5.5 5.3 5.0 4.9 4.8 4.7 4.4 4.3 4.2 4.0 3.9 3.8 3.7 3.5 3.4 3.3 3.2 3.1 3.1 3.0 2.9 2.8 2.7 2.7 2.6 2.5 2.5 2.4 2.3 2.3 2.2 2.2 2.1 2.1 49.935 36.64 27.18 20.37 15.416 11.775 9.0698 7.0497 5.5187 4.3558 3.4609 2.7705 2.2313 1.8098 1.4762 1.2116 1.0000 0.82984 0.6922 0.58042 0.48899 0.41395 0.35197 0.3006 0.2578 0.22197 0.19189 0.16648 0.14498 0.12669 0.11109 0.097717 0.086235 0.076325 0.06776 0.06032 0.053852 6.3 6.1 5.9 5.7 5.5 5.3 5.1 5.0 4.8 4.7 4.5 4.4 4.3 4.1 4.0 3.9 3.8 3.7 3.6 3.5 3.4 3.3 3.2 3.1 3.0 3.0 2.9 2.8 2.7 2.7 2.6 2.5 2.5 2.4 2.4 2.3 2.2 Please read Cautions and warnings and Important notes at the end of this document. Page 7 of 24 Temperature measurement and compensation Leaded NTC thermistors, lead spacing 5 mm B57164K K164 R/T characteristics R/T No. T (°C) 55.0 50.0 45.0 40.0 35.0 30.0 25.0 20.0 15.0 10.0 5.0 0.0 5.0 10.0 15.0 20.0 25.0 30.0 35.0 40.0 45.0 50.0 55.0 60.0 65.0 70.0 75.0 80.0 85.0 90.0 95.0 100.0 105.0 110.0 115.0 120.0 125.0 1307 2005 2006 B25/100 = 3560 K B25/100 = 4600 K B25/100 = 5000 K RT/R25 α (%/K) RT/R25 α (%/K) RT/R25 α (%/K) 51.115 38.3 28.847 21.842 16.627 12.725 9.7859 7.5902 5.8918 4.6124 3.6247 2.8717 2.2929 1.8442 1.4941 1.2183 1.0000 0.82246 0.68231 0.56909 0.4767 0.40133 0.33894 0.28769 0.24573 0.21081 0.18147 0.15682 0.13601 0.11838 0.10342 0.090648 0.079672 0.070236 0.062118 0.055093 0.048901 5.7 5.7 5.6 5.5 5.4 5.3 5.2 5.1 5.0 4.8 4.7 4.6 4.4 4.3 4.2 4.0 3.9 3.8 3.7 3.6 3.5 3.4 3.3 3.2 3.1 3.0 3.0 2.9 2.8 2.7 2.7 2.6 2.5 2.5 2.4 2.4 2.3 120.22 85.48 61.004 43.712 31.459 22.746 16.49 12.071 8.8455 6.5446 4.8852 3.6781 2.7944 2.1391 1.6507 1.2823 1.0000 0.78393 0.61822 0.49053 0.39116 0.31371 0.25338 0.20565 0.16762 0.13726 0.11279 0.093053 0.077177 0.064263 0.053678 0.044996 0.037917 0.032063 0.027161 0.023079 0.01968 7.0 6.9 6.8 6.7 6.6 6.6 6.4 6.3 6.1 6.0 5.8 5.6 5.4 5.3 5.1 5.1 5.0 4.8 4.7 4.6 4.5 4.3 4.2 4.2 4.1 4.0 3.9 3.8 3.7 3.6 3.6 3.5 3.4 3.4 3.3 3.2 3.2 200.55 131.02 87.171 58.988 40.545 28.272 19.997 14.292 10.35 7.5614 5.5343 4.086 3.0374 2.276 1.7188 1.3074 1.0000 0.76988 0.5954 0.46341 0.36327 0.28636 0.2262 0.17974 0.1438 0.1156 0.093296 0.075623 0.061619 0.050414 0.041532 0.034355 0.028525 0.023774 0.019852 0.016632 0.014016 8.7 8.3 8.0 7.7 7.4 7.1 6.9 6.6 6.4 6.4 6.2 6.0 5.9 5.7 5.6 5.5 5.3 5.2 5.1 4.9 4.8 4.8 4.7 4.5 4.4 4.3 4.3 4.2 4.1 3.9 3.8 3.8 3.7 3.7 3.6 3.5 3.4 Please read Cautions and warnings and Important notes at the end of this document. Page 8 of 24 Temperature measurement and compensation Leaded NTC thermistors, lead spacing 5 mm B57164K K164 R/T characteristics R/T No. T (°C) 55.0 50.0 45.0 40.0 35.0 30.0 25.0 20.0 15.0 10.0 5.0 0.0 5.0 10.0 15.0 20.0 25.0 30.0 35.0 40.0 45.0 50.0 55.0 60.0 65.0 70.0 75.0 80.0 85.0 90.0 95.0 100.0 105.0 110.0 115.0 120.0 125.0 130.0 135.0 140.0 145.0 150.0 155.0 2007 2903 2904 B25/100 = 4830 K B25/100 = 4200 K B25/100 = 4300 K RT/R25 α (%/K) RT/R25 α (%/K) RT/R25 α (%/K) 185.87 123.23 82.888 56.544 39.061 27.321 19.326 13.823 10.001 7.3067 5.3454 3.9484 2.9595 2.2358 1.7001 1.3021 1.0000 0.7756 0.60507 0.47498 0.37533 0.29823 0.23763 0.19041 0.15356 0.12442 0.10131 0.08286 0.068004 0.056032 0.046379 0.038533 0.032169 0.026952 0.022658 0.019111 0.016201 8.4 8.1 7.8 7.6 7.3 7.1 6.8 6.6 6.4 6.4 6.2 5.9 5.7 5.6 5.4 5.4 5.2 5.0 4.9 4.8 4.7 4.6 4.5 4.4 4.3 4.2 4.1 4.0 3.9 3.8 3.8 3.7 3.6 3.5 3.4 3.3 3.3 120.03 82.38 57.248 40.255 28.627 20.577 14.876 10.88 8.0808 6.0612 4.5649 3.4708 2.6625 2.0599 1.6069 1.2631 1.0000 0.79593 0.63796 0.51467 0.41887 0.34272 0.28081 0.23141 0.19211 0.16027 0.13421 0.11288 0.095326 0.080828 0.068916 0.058989 0.050701 0.043735 0.037778 0.032736 0.028513 7.7 7.4 7.2 7.0 6.7 6.6 6.4 6.1 5.9 5.8 5.6 5.4 5.2 5.1 4.9 4.8 4.6 4.5 4.4 4.2 4.1 4.0 3.9 3.8 3.7 3.6 3.5 3.4 3.3 3.2 3.2 3.1 3.0 3.0 2.9 2.8 2.7 121.46 84.439 59.243 41.938 29.947 21.567 15.641 11.466 8.451 6.2927 4.7077 3.5563 2.7119 2.086 1.6204 1.2683 1.0000 0.7942 0.63268 0.5074 0.41026 0.33363 0.27243 0.2237 0.18459 0.15305 0.12755 0.10677 0.089928 0.076068 0.064524 0.054941 0.047003 0.040358 0.034743 0.030007 0.026006 0.022609 0.01972 0.017251 0.015139 0.013321 0.011754 Page 9 of 24 7.4 7.2 7.1 6.9 6.7 6.6 6.3 6.2 6.0 5.9 5.7 5.5 5.3 5.1 5.0 4.8 4.7 4.6 4.5 4.3 4.2 4.1 4.0 3.9 3.8 3.7 3.6 3.5 3.4 3.3 3.3 3.2 3.1 3.0 3.0 2.9 2.8 2.8 2.7 2.6 2.6 2.5 2.5 Please read Cautions and warnings and Important notes at the end of this document. Temperature measurement and compensation Leaded NTC thermistors, lead spacing 5 mm B57164K K164 Please read Cautions and warnings and Important notes at the end of this document. Page 10 of 24 Temperature measurement and compensation Leaded NTC thermistors, lead spacing 5 mm B57164K K164 R/T characteristics R/T No. T (°C) 55.0 50.0 45.0 40.0 35.0 30.0 25.0 20.0 15.0 10.0 5.0 0.0 5.0 10.0 15.0 20.0 25.0 30.0 35.0 40.0 45.0 50.0 55.0 60.0 65.0 70.0 75.0 80.0 85.0 90.0 95.0 100.0 105.0 110.0 115.0 120.0 125.0 130.0 135.0 140.0 145.0 150.0 155.0 4001 4003 B25/100 = 3950 K B25/100 = 4450 K RT/R25 α (%/K) RT/R25 α (%/K) 88.052 61.65 43.727 31.395 22.802 16.742 12.367 9.2353 7.0079 5.3654 4.126 3.2 2.4986 1.9662 1.5596 1.2457 1.0000 0.80355 0.65346 0.53456 0.43966 0.36357 0.30183 0.25189 0.21136 0.17819 0.15089 0.12833 0.10948 0.093748 0.080764 0.069842 0.060455 0.052498 0.04574 0.039972 0.034984 7.3 7.0 6.8 6.5 6.3 6.2 6.0 5.6 5.4 5.4 5.2 5.0 4.9 4.7 4.6 4.5 4.4 4.2 4.1 4.0 3.9 3.8 3.7 3.6 3.5 3.4 3.3 3.2 3.1 3.0 2.9 2.9 2.9 2.8 2.7 2.7 2.6 103.81 73.707 52.723 37.988 27.565 20.142 14.801 10.976 8.1744 6.1407 4.6331 3.5243 2.6995 2.0831 1.6189 1.2666 1.0000 0.78351 0.62372 0.49937 0.40218 0.32557 0.26402 0.21527 0.17693 0.14616 0.12097 0.10053 0.083761 0.070039 0.058937 0.049777 0.042146 0.035803 0.030504 0.026067 0.022332 0.019186 0.016515 0.014253 0.012367 0.010758 0.0093933 6.8 6.7 6.6 6.5 6.4 6.2 6.1 5.9 5.8 5.7 5.5 5.4 5.3 5.1 5.0 4.9 4.7 4.6 4.5 4.4 4.3 4.2 4.1 4.0 3.9 3.8 3.7 3.7 3.6 3.5 3.4 3.4 3.3 3.2 3.2 3.1 3.0 3.0 2.9 2.9 2.8 2.8 2.7 Please read Cautions and warnings and Important notes at the end of this document. Page 11 of 24 Temperature measurement and compensation Leaded NTC thermistors, lead spacing 5 mm B57164K K164 Please read Cautions and warnings and Important notes at the end of this document. Page 12 of 24 Temperature measurement and compensation Leaded NTC thermistors, lead spacing 5 mm B57164K K164 Taping and packing 1 Taping of radial leaded NTC thermistors Dimensions and tolerances Lead spacing F = 2.5 mm and 5.0 mm (taping to IEC 60286-2) Dimensions (mm) Lead spacing 2.5 mm 11.0 5.0 0.5/0.6 12.7 5.1 2.5 0 0 18.0 5.5 9.0 3.0 18.0 16.0 32.2 4.0 0.9 11.0 4.0 Lead spacing 5 mm 11.5 6.0 0.5/0.6 12.7 3.85 5.0 0 0 18.0 5.5 9.0 3.0 18.0 16.0 32.2 4.0 0.9 11.0 4.0 Tolerance of lead spacing 2.5/5 mm max. max. ±0.05 ±0.3 ±0.7 +0.6/ 0.1 ±2.0 ±1.3 ±0.5 min. +0.75/ 0.5 max. +2.0/ 0 ±0.5 max. ±0.2 max. max. max. Remarks b s d P0 P1 F ∆h ∆p W W0 W1 W2 H H0 H1 D0 t L L1 ±1 mm / 20 sprocket holes measured at top of component body peel-off force ≥5 N without wires Please read Cautions and warnings and Important notes at the end of this document. Page 13 of 24 Temperature measurement and compensation Leaded NTC thermistors, lead spacing 5 mm B57164K K164 Types of packing Ammo packing Ammo type I x 80 y 240 z 210 Packing unit: 1000 - 2000 pcs./reel Reel packing Packing unit: 1000 - 2000 pcs./reel Reel dimensions (in mm) Reel type I II d 360 max. 500 max. f 31 ±1 23 ±1 Page 14 of 24 n approx. 45 approx. 59 w 54 max. 72 max. Please read Cautions and warnings and Important notes at the end of this document. Temperature measurement and compensation Leaded NTC thermistors, lead spacing 5 mm B57164K K164 Cassette packing Packing unit: 1000 - 2000 pcs./cassette Bulk packing The components are packed in cardboard boxes, the size of which depends on the order quantity. Please read Cautions and warnings and Important notes at the end of this document. Page 15 of 24 Temperature measurement and compensation Leaded NTC thermistors, lead spacing 5 mm B57164K K164 2 Packing codes The last two digits of the complete ordering code state the packing mode: Last two digits 00, 01, 02, 03,04, 05, 06, 07, 08 40 45 50 51 52 53 54 55 60 62 70 72 Radial leads, kinked Radial leads, kinked Radial leads, straight Radial leads, straight Radial leads, kinked Radial leads, straight SMD SMD SMD SMD Bulk Bulk Bulk Cardboard tape Cardboard tape Cardboard tape Cardboard tape Cardboard tape Cardboard tape Cardboard tape Blister tape Cardboard tape Blister tape Cassette packing 360 or 500-mm reel packing Cassette packing 360 or 500-mm reel packing AMMO packing AMMO packing 180-mm reel packing 180-mm reel packing 330-mm reel packing 330-mm reel packing (If no packing code is indicated, this corresponds to 40) Example 1: Example 2: B57164K0102J000 B57164K0102J052 B57881S0103F002 B57881S0103F251 Bulk Cardboard tape, cassette packing Bulk Cardboard tape, reel packing Please read Cautions and warnings and Important notes at the end of this document. Page 16 of 24 Temperature measurement and compensation Leaded NTC thermistors, lead spacing 5 mm B57164K K164 Mounting instructions 1 1.1 Soldering Leaded NTC thermistors Leaded thermistors comply with the solderability requirements specified by CECC. When soldering, care must be taken that the NTC thermistors are not damaged by excessive heat. The following maximum temperatures, maximum time spans and minimum distances have to be observed: Dip soldering Bath temperature Soldering time Distance from thermistor max. 260 °C max. 4 s min. 6 mm Iron soldering max. 360 °C max. 2 s min. 6 mm Under more severe soldering conditions the resistance may change. 1.2 Leadless NTC thermistors In case of NTC thermistors without leads, soldering is restricted to devices which are provided with a solderable metallization. The temperature shock caused by the application of hot solder may produce fine cracks in the ceramic, resulting in changes in resistance. To prevent leaching of the metallization, solder with silver additives or with a low tin content should be used. In addition, soldering methods should be employed which permit short soldering times. 2 Clamp contacting Pressure contacting by means of clamps is particularly suitable for applications involving frequent switching and high turn-on powers. 3 Robustness of terminations (leaded types) The leads meet the requirements of IEC 60068-2-21. They may not be bent closer than 4 mm from the solder joint on the thermistor body or from the point at which they leave the feedthroughs. During bending, any mechanical stress at the outlet of the leads must be removed. The bending radius should be at least 0.75 mm. Tensile strength: Test Ua1: Leads 0.25 < 0.35 < 0.50 < 0.80 < ∅ ≤0.25 mm = 1.0 N ∅ ≤0.35 mm = 2.5 N ∅ ≤0.50 mm = 5.0 N ∅ ≤0.80 mm = 10.0 N ∅ ≤1.25 mm = 20.0 N Please read Cautions and warnings and Important notes at the end of this document. Page 17 of 24 Temperature measurement and compensation Leaded NTC thermistors, lead spacing 5 mm B57164K K164 Bending strength: Test Ub: Two 90°-bends in opposite directions at a weight of 0.25 kg. Torsional strength: Test Uc: severity 2 The lead is bent by 90° at a distance of 6 to 6.5 mm from the thermistor body. The bending radius of the leads should be approx. 0.75 mm. Two torsions of 180° each (severity 2). When subjecting leads to mechanical stress, the following should be observed: Tensile stress on leads During mounting and operation tensile forces on the leads are to be avoided. Bending of leads Bending of the leads directly on the thermistor body is not permissible. A lead may be bent at a minimum distance of twice the wire's diameter +2 mm from the solder joint on the thermistor body. During bending the wire must be mechanically relieved at its outlet. The bending radius should be at least 0.75 mm. Twisting of leads The twisting (torsion) by 180° of a lead bent by 90° is permissible at 6 mm from the bottom of the thermistor body. 4 Sealing and potting When thermistors are sealed, potted or overmolded, there must be no mechanical stress caused by thermal expansion during the production process (curing / overmolding process) and during later operation. The upper category temperature of the thermistor must not be exceeded. Ensure that the materials used (sealing / potting compound and plastic material) are chemically neutral. 5 Cleaning If cleaning is necessary, mild cleaning agents such as ethyl alcohol and cleaning gasoline are recommended. Cleaning agents based on water are not allowed. Ultrasonic cleaning methods are permissible. 6 Storage In order to maintain their solderability, thermistors must be stored in a non-corrosive atmosphere. Humidity, temperature and container materials are critical factors. Do not store SMDs where they are exposed to heat or direct sunlight. Otherwise, the packing material may be deformed or SMDs may stick together, causing problems during mounting. After opening the factory seals, such as polyvinyl-sealed packages, use the SMDs as soon as possible. Please read Cautions and warnings and Important notes at the end of this document. Page 18 of 24 Temperature measurement and compensation Leaded NTC thermistors, lead spacing 5 mm B57164K K164 The components should be left in the original packing. Touching the metallization of unsoldered thermistors may change their soldering properties. Storage temperature: Relative humidity (without condensation): 25 °C up to 45 °C ≤75% annual mean