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NTC thermistors for temperature measurement
Leaded NTC thermistors, lead spacing 5 mm
Series/Type: Date:
B57164K February 2009
(c) 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 th c 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 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 (%/K) RT/R25 (%/K) RT/R25 (%/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 (%/K) RT/R25 (%/K) RT/R25 (%/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 (%/K) RT/R25 (%/K) RT/R25 (%/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 (%/K) RT/R25 (%/K) RT/R25 (%/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 (%/K) RT/R25 (%/K) RT/R25 (%/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 (%/K) RT/R25 (%/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.
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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.
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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
<95%, maximum 30 days per annum Solder the thermistors listed in this data book after shipment from EPCOS within the time specified: SMDs: Leaded components: 12 months 24 months
Please read Cautions and warnings and Important notes at the end of this document.
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Temperature measurement and compensation Leaded NTC thermistors, lead spacing 5 mm
B57164K K164
Cautions and warnings General See "Important notes" at the end of this document. Storage Store thermistors only in original packaging. Do not open the package prior to storage. Storage conditions in original packaging: storage temperature 25 C ... +45 C, relative humidity 75% annual mean, <95% maximum 30 days per annum, dew precipitation is inadmissible. Do not store thermistors where they are exposed to heat or direct sunlight. Otherwise, the packing material may be deformed or components may stick together, causing problems during mounting. Avoid contamination of thermistor surface during storage, handling and processing. Avoid storage of thermistors in harmful environments like corrosive gases (SOx, Cl etc). Use the components as soon as possible after opening the factory seals, i.e. the polyvinyl-sealed packages. Solder thermistors within the time specified after shipment from EPCOS. For leaded components this is 24 months, for SMDs 12 months. Handling NTC thermistors must not be dropped. Chip-offs or any other damage must not be caused during handling of NTCs. Do not touch components with bare hands. Gloves are recommended. Avoid contamination of thermistor surface during handling. Bending / twisting leads A lead (wire) may be bent at a minimum distance of twice the wire's diameter plus 4 mm from the component head or housing. When bending ensure the wire is mechanically relieved at the component head or housing. The bending radius should be at least 0.75 mm. Twisting (torsion) by 180 of a lead bent by 90 is permissible at 6 mm from the bottom of the thermistor body. Soldering Use resin-type flux or non-activated flux. Insufficient preheating may cause ceramic cracks. Rapid cooling by dipping in solvent is not recommended. Complete removal of flux is recommended.
Please read Cautions and warnings and Important notes at the end of this document.
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Temperature measurement and compensation Leaded NTC thermistors, lead spacing 5 mm
B57164K K164
Mounting Ensure that no thermo-mechanical stress occurs due to production processes (curing or overmolding processes) when thermistors are sealed, potted or overmolded or during their subsequent operation. The maximum temperature of the thermistor must not be exceeded. Ensure that the materials used (sealing/potting compound and plastic material) are chemically neutral. Electrodes/contacts must not be scratched or damaged before/during/after the mounting process. Contacts and housing used for assembly with the thermistor must be clean before mounting. Ensure that adjacent materials are designed for operation at temperatures comparable to the surface temperature of the thermistor. Be sure that surrounding parts and materials can withstand the temperature. Avoid contamination of the thermistor surface during processing. The connections of sensors (e.g. cable end, wire end, plug terminal) may only be exposed to an environment with normal atmospheric conditions. Tensile forces on cables or leads must be avoided during mounting and operation. Bending or twisting of cables or leads directly on the thermistor body is not permissible. Avoid using chemical substances as mounting aids. It must be ensured that no water or other liquids enter the NTC thermistors (e.g. through plug terminals). In particular, water based substances (e.g. soap suds) must not be used as mounting aids for sensors. Operation Use thermistors only within the specified operating temperature range. Use thermistors only within the specified power range. Environmental conditions must not harm the thermistors. Only use the thermistors under normal atmospheric conditions or within the specified conditions. Contact of NTC thermistors with any liquids and solvents should be prevented. It must be ensured that no water enters the NTC thermistors (e.g. through plug terminals). For measurement purposes (checking the specified resistance vs. temperature), the component must not be immersed in water but in suitable liquids (e.g. Galden). Avoid dewing and condensation unless thermistor is specified for these conditions. Bending or twisting of cables and/or wires is not permissible during operation of the sensor in the application. Be sure to provide an appropriate fail-safe function to prevent secondary product damage caused by malfunction. This listing does not claim to be complete, but merely reflects the experience of EPCOS AG.
Please read Cautions and warnings and Important notes at the end of this document.
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Temperature measurement and compensation Leaded NTC thermistors, lead spacing 5 mm
B57164K K164
Symbols and terms Symbol A AWG B B25/100 Cth I N P25 Pdiss Pel Pmax RB/RB Rins RP RR RR/RR RS RT T T t TA Tmax Tmin Top TR Tsurf V Vins Vop Vtest English Area American Wire Gauge B value B value determined by resistance measurement at 25 C and 100 C Heat capacitance Current Number (integer) Maximum power at 25 C Power dissipation Electrical power Maximum power within stated temperature range Resistance tolerance caused by spread of B value Insulation resistance Parallel resistance Rated resistance Resistance tolerance Series resistance Resistance at temperature T (e.g. R25 = resistance at 25 C) Temperature Temperature tolerance Time Ambient temperature Upper category temperature Lower category temperature Operating temperature Rated temperature Surface temperature Voltage Insulation test voltage Operating voltage Test voltage German Flache Amerikanische Norm fur Drahtquerschnitte B-Wert B-Wert, ermittelt durch Widerstandsmessungen bei 25 C und 100 C Warmekapazitat Strom Anzahl (ganzzahliger Wert) Maximale Leistung bei 25 C Verlustleistung Elektrische Leistung Maximale Leistung im angegebenenTemperaturbereich Widerstandstoleranz, die durch die Streuung des B-Wertes verursacht wird Isolationswiderstand Parallelwiderstand Nennwiderstand Widerstandstoleranz Serienwiderstand Widerstand bei Temperatur T (z.B. R25 = Widerstand bei 25 C) Temperatur Temperaturtoleranz Zeit Umgebungstemperatur Obere Grenztemperatur (Kategorietemperatur) Untere Grenztemperatur (Kategorietemperatur) Betriebstemperatur Nenntemperatur Oberflachentemperatur Spannung Isolationsprufspannung Betriebsspannung Prufspannung
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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
Symbol th c a
English Temperature coefficient Tolerance, change Dissipation factor Thermal cooling time constant Thermal time constant
German Temperaturkoeffizient Toleranz, Anderung Warmeleitwert Thermische Abkuhlzeitkonstante Thermische Zeitkonstante
Abbreviations / Notes Symbol English Surface-mounted devices * + German Oberflachenmontierbares Bauelement
To be replaced by a number in ordering Platzhalter fur Zahl im Bestellnummerncodes, type designations etc. code oder fur die Typenbezeichnung. To be replaced by a letter. All dimensions are given in mm. The commas used in numerical values denote decimal points. Platzhalter fur einen Buchstaben. Alle Mae sind in mm angegeben. Verwendete Kommas in Zahlenwerten bezeichnen Dezimalpunkte.
Please read Cautions and warnings and Important notes at the end of this document.
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Important notes
The following applies to all products named in this publication: 1. Some parts of this publication contain statements about the suitability of our products for certain areas of application. These statements are based on our knowledge of typical requirements that are often placed on our products in the areas of application concerned. We nevertheless expressly point out that such statements cannot be regarded as binding statements about the suitability of our products for a particular customer application. As a rule, EPCOS is either unfamiliar with individual customer applications or less familiar with them than the customers themselves. For these reasons, it is always ultimately incumbent on the customer to check and decide whether an EPCOS product with the properties described in the product specification is suitable for use in a particular customer application. 2. We also point out that in individual cases, a malfunction of electronic components or failure before the end of their usual service life cannot be completely ruled out in the current state of the art, even if they are operated as specified. In customer applications requiring a very high level of operational safety and especially in customer applications in which the malfunction or failure of an electronic component could endanger human life or health (e.g. in accident prevention or lifesaving systems), it must therefore be ensured by means of suitable design of the customer application or other action taken by the customer (e.g. installation of protective circuitry or redundancy) that no injury or damage is sustained by third parties in the event of malfunction or failure of an electronic component. 3. The warnings, cautions and product-specific notes must be observed. 4. In order to satisfy certain technical requirements, some of the products described in this publication may contain substances subject to restrictions in certain jurisdictions (e.g. because they are classed as hazardous). Useful information on this will be found in our Material Data Sheets on the Internet (www.epcos.com/material). Should you have any more detailed questions, please contact our sales offices. 5. We constantly strive to improve our products. Consequently, the products described in this publication may change from time to time. The same is true of the corresponding product specifications. Please check therefore to what extent product descriptions and specifications contained in this publication are still applicable before or when you place an order. We also reserve the right to discontinue production and delivery of products. Consequently, we cannot guarantee that all products named in this publication will always be available. The aforementioned does not apply in the case of individual agreements deviating from the foregoing for customer-specific products. 6. Unless otherwise agreed in individual contracts, all orders are subject to the current version of the "General Terms of Delivery for Products and Services in the Electrical Industry" published by the German Electrical and Electronics Industry Association (ZVEI). 7. The trade names EPCOS, BAOKE, Alu-X, CeraDiode, CSMP, CSSP, CTVS, DSSP, MiniBlue, MKK, MLSC, MotorCap, PCC, PhaseCap, PhaseCube, PhaseMod, SIFERRIT, SIFI, SIKOREL, SilverCap, SIMDAD, SIMID, SineFormer, SIOV, SIP5D, SIP5K, ThermoFuse, WindCap are trademarks registered or pending in Europe and in other countries. Further information will be found on the Internet at www.epcos.com/trademarks.
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