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ntc thermistors for temperature measurement leaded ntcs, lead spacing 2.5 mm series/type: b57871 date: march 2006 ? epcos ag 2006. reproduction, publication and dissemination of this publication, enclosures hereto and the information contained therein without epcos' prior express consent is prohibited.
applications temperature measurement features high measuring accurancy cost-effective rugged design, epoxy resin encapsulation tinned copper leads lead spacing 2.5 mm options flexible coating of head and wires available on request delivery mode bulk (standard), cardboard tape, reeled or in ammo pack dimensional drawing dimensions in mm approx. weight 120 mg general technical data climatic category (iec 60068-1) 55/155/56 max. power (at 25 c) p 25 60 mw resistance tolerance d r r /r r 1, 3, 5 % rated temperature t r 25 c dissipation factor (in air) d th approx. 3.8 mw/k thermal cooling time constant (in air) t c approx. 7.5 s heat capacity c th approx. 28.5 mj/k electrical specification and ordering codes r 25 w no. of r/t characteristic b 25/100 k ordering code + = resistance tolerance f = 1% h = 3% j = 5% 2.1 k 1008 3560 1% b57871s0212+000 10 k 8016 3988 1% b57871s0103+001 10 k 2908 3460 1% b57871s0103+002 12 k 2901 3760 1% b57871s0123+000 30 k 8018 3964 1% b57871s0303+000 temperature measurement b57871 leaded ntcs, lead spacing 2.5 mm s871 page 2 of 25 please read important notes and cautions and warnings at the end of this document.
reliability data test standard test conditions d r 25 /r 25 (typical) remarks storage in dry heat iec 60068-2-2 storage at upper category temperature t: 155 c t: 1000 h < 2% no visible damage storage in damp heat, steady state iec 60068-2-78 temperature of air: 40 c relative humidity of air: 93% duration: 56 days < 1% no visible damage rapid temperature cycling iec 60068-2-14 lower test temperature: 55 c upper test temperature: 155 c number of cycles: 100 < 2% no visible damage endurance p max : 60 mw t: 1000 h < 3% no visible damage long-term stability (empirical value) temperature: 70 c t: 10000 h < 3% no visible damage temperature measurement b57871 leaded ntcs, lead spacing 2.5 mm s871 page 3 of 25 please read important notes and cautions and warnings at the end of this document.
r/t characteristics b57871s0212f000 r/t no. 1008 t ( c) b 25/100 = 3560 k, r 25 = 2100 w , t r = 25 c, d r r /r r = 1% r nom [ w ] r min [ w ] r max [ w ] d r r /r r [ %] d t[ c] a (%/k) 55.0 111520 105460 117570 5.4 0.9 6.1 50.0 82567 78386 86747 5.1 0.8 6.0 45.0 61583 58680 64486 4.7 0.8 5.8 40.0 46263 44237 48289 4.4 0.8 5.7 35.0 34999 33579 36420 4.1 0.7 5.5 30.0 26661 25661 27661 3.8 0.7 5.4 25.0 20423 19717 21128 3.5 0.7 5.2 20.0 15786 15285 16287 3.2 0.6 5.1 15.0 12254 11899 12609 2.9 0.6 4.9 10.0 9594 9341 9847 2.6 0.5 4.8 5.0 7570 7390 7751 2.4 0.5 4.7 0.0 6020 5891 6149 2.1 0.5 4.5 5.0 4811 4719 4902 1.9 0.4 4.4 10.0 3872 3807 3937 1.7 0.4 4.3 15.0 3133 3087 3179 1.5 0.4 4.1 20.0 2552 2520 2584 1.3 0.3 4.0 25.0 2100 2079 2121 1.0 0.3 3.9 30.0 1742 1721 1764 1.2 0.3 3.8 35.0 1441 1421 1462 1.4 0.4 3.7 40.0 1199 1180 1219 1.6 0.5 3.6 45.0 1008 990.2 1026 1.8 0.5 3.5 50.0 851.4 834.6 868.2 2.0 0.6 3.4 55.0 717.6 702.2 732.9 2.1 0.6 3.3 60.0 608.0 594.0 622.0 2.3 0.7 3.2 65.0 519.0 506.2 531.8 2.5 0.8 3.1 70.0 444.8 433.2 456.5 2.6 0.9 3.1 75.0 382.1 371.5 392.6 2.8 0.9 3.0 80.0 329.3 319.7 338.9 2.9 1.0 2.9 85.0 285.4 276.7 294.1 3.1 1.1 2.8 90.0 248.3 240.4 256.2 3.2 1.2 2.8 95.0 217.1 209.9 224.3 3.3 1.2 2.7 100.0 190.6 184.0 197.1 3.4 1.3 2.6 105.0 167.2 161.3 173.2 3.6 1.4 2.6 110.0 147.2 141.8 152.7 3.7 1.5 2.5 115.0 130.0 125.0 134.9 3.8 1.6 2.4 120.0 115.0 110.5 119.6 3.9 1.6 2.4 125.0 102.3 98.14 106.4 4.0 1.7 2.3 130.0 91.17 87.38 94.96 4.2 1.8 2.3 135.0 81.32 77.85 84.79 4.3 1.9 2.2 temperature measurement b57871 leaded ntcs, lead spacing 2.5 mm s871 page 4 of 25 please read important notes and cautions and warnings at the end of this document.
b57871s0212f000 r/t no. 1008 t ( c) b 25/100 = 3560 k, r 25 = 2100 w , t r = 25 c, d r r /r r = 1% r nom [ w ] r min [ w ] r max [ w ] d r r /r r [ %] d t[ c] a (%/k) 140.0 72.69 69.51 75.87 4.4 2.0 2.2 145.0 65.20 62.28 68.12 4.5 2.1 2.1 150.0 58.61 55.93 61.29 4.6 2.2 2.1 155.0 52.91 50.43 55.38 4.7 2.3 2.0 b57871s0212h000 r/t no. 1008 t ( c) b 25/100 = 3560 k, r 25 = 2100 w , t r = 25 c, d r r /r r = 3% r nom [ w ] r min [ w ] r max [ w ] d r r /r r [ %] d t[ c] a (%/k) 55.0 111520 103230 119800 7.4 1.2 6.1 50.0 82567 76735 88399 7.1 1.2 6.0 45.0 61583 57449 65717 6.7 1.2 5.8 40.0 46263 43312 49214 6.4 1.1 5.7 35.0 34999 32879 37120 6.1 1.1 5.5 30.0 26661 25128 28194 5.8 1.1 5.4 25.0 20423 19308 21537 5.5 1.0 5.2 20.0 15786 14969 16602 5.2 1.0 5.1 15.0 12254 11654 12854 4.9 1.0 4.9 10.0 9594 9149 10039 4.6 1.0 4.8 5.0 7570 7238 7903 4.4 0.9 4.7 0.0 6020 5770 6269 4.1 0.9 4.5 5.0 4811 4622 4999 3.9 0.9 4.4 10.0 3872 3729 4014 3.7 0.9 4.3 15.0 3133 3025 3242 3.5 0.8 4.1 20.0 2552 2469 2635 3.3 0.8 4.0 25.0 2100 2037 2163 3.0 0.8 3.9 30.0 1742 1686 1799 3.2 0.9 3.8 35.0 1441 1392 1491 3.4 0.9 3.7 40.0 1199 1156 1243 3.6 1.0 3.6 45.0 1008 970.0 1047 3.8 1.1 3.5 50.0 851.4 817.6 885.3 4.0 1.2 3.4 55.0 717.6 687.9 747.3 4.1 1.2 3.3 60.0 608.0 581.8 634.2 4.3 1.3 3.2 65.0 519.0 495.8 542.2 4.5 1.4 3.1 70.0 444.8 424.3 465.4 4.6 1.5 3.1 75.0 382.1 363.9 400.3 4.8 1.6 3.0 80.0 329.3 313.1 345.5 4.9 1.7 2.9 85.0 285.4 271.0 299.8 5.1 1.8 2.8 90.0 248.3 235.4 261.1 5.2 1.9 2.8 temperature measurement b57871 leaded ntcs, lead spacing 2.5 mm s871 page 5 of 25 please read important notes and cautions and warnings at the end of this document.
b57871s0212h000 r/t no. 1008 t ( c) b 25/100 = 3560 k, r 25 = 2100 w , t r = 25 c, d r r /r r = 3% r nom [ w ] r min [ w ] r max [ w ] d r r /r r [ %] d t[ c] a (%/k) 95.0 217.1 205.6 228.7 5.3 2.0 2.7 100.0 190.6 180.2 200.9 5.4 2.1 2.6 105.0 167.2 157.9 176.6 5.6 2.2 2.6 110.0 147.2 138.8 155.6 5.7 2.3 2.5 115.0 130.0 122.4 137.5 5.8 2.4 2.4 120.0 115.0 108.2 121.9 5.9 2.5 2.4 125.0 102.3 96.10 108.5 6.0 2.6 2.3 130.0 91.17 85.56 96.79 6.2 2.7 2.3 135.0 81.32 76.22 86.41 6.3 2.8 2.2 140.0 72.69 68.06 77.33 6.4 2.9 2.2 145.0 65.20 60.98 69.42 6.5 3.0 2.1 150.0 58.61 54.76 62.47 6.6 3.2 2.1 155.0 52.91 49.37 56.44 6.7 3.3 2.0 b57871s0212j000 r/t no. 1008 t ( c) b 25/100 = 3560 k, r 25 = 2100 w , t r = 25 c, d r r /r r = 5% r nom [ w ] r min [ w ] r max [ w ] d r r /r r [ %] d t[ c] a (%/k) 55.0 111520 101000 122030 9.4 1.5 6.1 50.0 82567 75084 90050 9.1 1.5 6.0 45.0 61583 56217 66949 8.7 1.5 5.8 40.0 46263 42387 50139 8.4 1.5 5.7 35.0 34999 32179 37820 8.1 1.5 5.5 30.0 26661 24595 28728 7.8 1.4 5.4 25.0 20423 18900 21945 7.5 1.4 5.2 20.0 15786 14654 16918 7.2 1.4 5.1 15.0 12254 11408 13100 6.9 1.4 4.9 10.0 9594 8957 10231 6.6 1.4 4.8 5.0 7570 7087 8054 6.4 1.4 4.7 0.0 6020 5650 6389 6.1 1.4 4.5 5.0 4811 4526 5095 5.9 1.3 4.4 10.0 3872 3652 4092 5.7 1.3 4.3 15.0 3133 2962 3304 5.5 1.3 4.1 20.0 2552 2418 2687 5.3 1.3 4.0 25.0 2100 1995 2205 5.0 1.3 3.9 30.0 1742 1651 1834 5.2 1.4 3.8 35.0 1441 1363 1520 5.4 1.5 3.7 40.0 1199 1132 1267 5.6 1.6 3.6 45.0 1008 949.8 1067 5.8 1.7 3.5 temperature measurement b57871 leaded ntcs, lead spacing 2.5 mm s871 page 6 of 25 please read important notes and cautions and warnings at the end of this document.
b57871s0212j000 r/t no. 1008 t ( c) b 25/100 = 3560 k, r 25 = 2100 w , t r = 25 c, d r r /r r = 5% r nom [ w ] r min [ w ] r max [ w ] d r r /r r [ %] d t[ c] a (%/k) 50.0 851.4 800.6 902.3 6.0 1.8 3.4 55.0 717.6 673.5 761.6 6.1 1.9 3.3 60.0 608.0 569.7 646.3 6.3 2.0 3.2 65.0 519.0 485.5 552.5 6.5 2.1 3.1 70.0 444.8 415.4 474.3 6.6 2.2 3.1 75.0 382.1 356.2 407.9 6.8 2.3 3.0 80.0 329.3 306.5 352.0 6.9 2.4 2.9 85.0 285.4 265.3 305.5 7.1 2.5 2.8 90.0 248.3 230.4 266.1 7.2 2.6 2.8 95.0 217.1 201.2 233.0 7.3 2.7 2.7 100.0 190.6 176.4 204.8 7.4 2.8 2.6 105.0 167.2 154.6 179.9 7.6 3.0 2.6 110.0 147.2 135.9 158.5 7.7 3.1 2.5 115.0 130.0 119.8 140.1 7.8 3.2 2.4 120.0 115.0 105.9 124.2 7.9 3.3 2.4 125.0 102.3 94.05 110.5 8.0 3.4 2.3 130.0 91.17 83.73 98.61 8.2 3.6 2.3 135.0 81.32 74.59 88.04 8.3 3.7 2.2 140.0 72.69 66.61 78.78 8.4 3.8 2.2 145.0 65.20 59.67 70.73 8.5 4.0 2.1 150.0 58.61 53.58 63.64 8.6 4.1 2.1 155.0 52.91 48.32 57.50 8.7 4.3 2.0 b57871s0103f001 r/t no. 8016 t ( c) b 25/100 = 3988 k, r 25 = 10000 w , t r = 25 c, d r r /r r = 1% r nom [ w ] r min [ w ] r max [ w ] d r r /r r [ %] d t[ c] a (%/k) 55.0 963050 905700 1020400 6.0 0.8 7.4 50.0 670100 632940 707260 5.5 0.8 7.1 45.0 471690 447380 496000 5.2 0.7 6.9 40.0 336500 320420 352580 4.8 0.7 6.7 35.0 242590 231870 253310 4.4 0.7 6.4 30.0 177000 169790 184210 4.1 0.7 6.2 25.0 130370 125490 135250 3.7 0.6 6.0 20.0 97070 93743 100400 3.4 0.6 5.8 15.0 72929 70652 75206 3.1 0.6 5.6 10.0 55330 53765 56895 2.8 0.5 5.4 5.0 42315 41237 43393 2.5 0.5 5.3 0.0 32650 31907 33393 2.3 0.4 5.1 temperature measurement b57871 leaded ntcs, lead spacing 2.5 mm s871 page 7 of 25 please read important notes and cautions and warnings at the end of this document.
b57871s0103f001 r/t no. 8016 t ( c) b 25/100 = 3988 k, r 25 = 10000 w , t r = 25 c, d r r /r r = 1% r nom [ w ] r min [ w ] r max [ w ] d r r /r r [ %] d t[ c] a (%/k) 5.0 25388 24877 25898 2.0 0.4 5.0 10.0 19900 19550 20250 1.8 0.4 4.8 15.0 15708 15470 15946 1.5 0.3 4.7 20.0 12490 12330 12650 1.3 0.3 4.5 25.0 10000 9900 10100 1.0 0.2 4.4 30.0 8057 7955 8159 1.3 0.3 4.3 35.0 6531 6434 6628 1.5 0.4 4.1 40.0 5327 5237 5417 1.7 0.4 4.0 45.0 4369 4286 4451 1.9 0.5 3.9 50.0 3603 3528 3678 2.1 0.5 3.8 55.0 2986 2918 3054 2.3 0.6 3.7 60.0 2488 2427 2549 2.5 0.7 3.6 65.0 2083 2028 2138 2.6 0.8 3.5 70.0 1752 1703 1801 2.8 0.8 3.4 75.0 1481 1437 1525 3.0 0.9 3.3 80.0 1258 1219 1297 3.1 1.0 3.2 85.0 1072 1037 1108 3.3 1.0 3.2 90.0 917.7 886.1 949.3 3.4 1.1 3.1 95.0 788.5 760.2 816.9 3.6 1.2 3.0 100.0 680.0 654.6 705.4 3.7 1.3 2.9 105.0 588.6 565.8 611.4 3.9 1.4 2.9 110.0 511.2 490.7 531.7 4.0 1.4 2.8 115.0 445.4 426.9 463.9 4.2 1.5 2.7 120.0 389.3 372.6 406.0 4.3 1.6 2.7 125.0 341.7 326.6 356.8 4.4 1.7 2.6 130.0 300.9 287.3 314.5 4.5 1.8 2.5 135.0 265.4 253.1 277.8 4.7 1.9 2.5 140.0 234.8 223.6 246.0 4.8 2.0 2.4 145.0 208.3 198.1 218.5 4.9 2.1 2.4 150.0 185.3 176.0 194.6 5.0 2.2 2.3 155.0 165.3 156.9 173.8 5.1 2.3 2.3 b57871s0103h001 r/t no. 8016 t ( c) b 25/100 = 3988 k, r 25 = 10000 w , t r = 25 c, d r r /r r = 3% r nom [ w ] r min [ w ] r max [ w ] d r r /r r [ %] d t[ c] a (%/k) 55.0 963050 886440 1039700 8.0 1.1 7.4 50.0 670100 619540 720660 7.5 1.1 7.1 45.0 471690 437940 505430 7.2 1.0 6.9 temperature measurement b57871 leaded ntcs, lead spacing 2.5 mm s871 page 8 of 25 please read important notes and cautions and warnings at the end of this document.
b57871s0103h001 r/t no. 8016 t ( c) b 25/100 = 3988 k, r 25 = 10000 w , t r = 25 c, d r r /r r = 3% r nom [ w ] r min [ w ] r max [ w ] d r r /r r [ %] d t[ c] a (%/k) 40.0 336500 313690 359310 6.8 1.0 6.7 35.0 242590 227020 258160 6.4 1.0 6.4 30.0 177000 166250 187750 6.1 1.0 6.2 25.0 130370 122880 137860 5.7 1.0 6.0 20.0 97070 91801 102340 5.4 0.9 5.8 15.0 72929 69193 76665 5.1 0.9 5.6 10.0 55330 52658 58002 4.8 0.9 5.4 5.0 42315 40391 44239 4.5 0.9 5.3 0.0 32650 31254 34046 4.3 0.8 5.1 5.0 25388 24369 26406 4.0 0.8 5.0 10.0 19900 19152 20648 3.8 0.8 4.8 15.0 15708 15156 16260 3.5 0.8 4.7 20.0 12490 12081 12899 3.3 0.7 4.5 25.0 10000 9700 10300 3.0 0.7 4.4 30.0 8057 7793 8321 3.3 0.8 4.3 35.0 6531 6304 6759 3.5 0.8 4.1 40.0 5327 5130 5524 3.7 0.9 4.0 45.0 4369 4199 4539 3.9 1.0 3.9 50.0 3603 3456 3750 4.1 1.1 3.8 55.0 2986 2859 3114 4.3 1.2 3.7 60.0 2488 2377 2599 4.5 1.2 3.6 65.0 2083 1987 2180 4.6 1.3 3.5 70.0 1752 1668 1836 4.8 1.4 3.4 75.0 1481 1408 1555 5.0 1.5 3.3 80.0 1258 1193 1323 5.1 1.6 3.2 85.0 1072 1016 1129 5.3 1.7 3.2 90.0 917.7 867.7 967.7 5.4 1.8 3.1 95.0 788.5 744.4 832.6 5.6 1.9 3.0 100.0 680.0 641.0 719.0 5.7 2.0 2.9 105.0 588.6 554.0 623.2 5.9 2.1 2.9 110.0 511.2 480.4 542.0 6.0 2.2 2.8 115.0 445.4 418.0 472.8 6.2 2.3 2.7 120.0 389.3 364.8 413.8 6.3 2.4 2.7 125.0 341.7 319.8 363.6 6.4 2.5 2.6 130.0 300.9 281.2 320.6 6.5 2.6 2.5 135.0 265.4 247.8 283.1 6.7 2.7 2.5 140.0 234.8 218.9 250.7 6.8 2.8 2.4 145.0 208.3 194.0 222.7 6.9 2.9 2.4 150.0 185.3 172.3 198.3 7.0 3.0 2.3 155.0 165.3 153.6 177.1 7.1 3.1 2.3 temperature measurement b57871 leaded ntcs, lead spacing 2.5 mm s871 page 9 of 25 please read important notes and cautions and warnings at the end of this document.
b57871s0103j001 r/t no. 8016 t ( c) b 25/100 = 3988 k, r 25 = 10000 w , t r = 25 c, d r r /r r = 5% r nom [ w ] r min [ w ] r max [ w ] d r r /r r [ %] d t[ c] a (%/k) 55.0 963050 867180 1058900 10.0 1.3 7.4 50.0 670100 606140 734070 9.5 1.3 7.1 45.0 471690 428510 514870 9.2 1.3 6.9 40.0 336500 306960 366040 8.8 1.3 6.7 35.0 242590 222160 263020 8.4 1.3 6.4 30.0 177000 162710 191290 8.1 1.3 6.2 25.0 130370 120270 140470 7.7 1.3 6.0 20.0 97070 89860 104280 7.4 1.3 5.8 15.0 72929 67735 78124 7.1 1.3 5.6 10.0 55330 51551 59108 6.8 1.3 5.4 5.0 42315 39545 45085 6.5 1.2 5.3 0.0 32650 30601 34699 6.3 1.2 5.1 5.0 25388 23861 26914 6.0 1.2 5.0 10.0 19900 18754 21046 5.8 1.2 4.8 15.0 15708 14842 16574 5.5 1.2 4.7 20.0 12490 11831 13149 5.3 1.2 4.5 25.0 10000 9500 10500 5.0 1.1 4.4 30.0 8057 7632 8482 5.3 1.2 4.3 35.0 6531 6173 6889 5.5 1.3 4.1 40.0 5327 5024 5630 5.7 1.4 4.0 45.0 4369 4111 4626 5.9 1.5 3.9 50.0 3603 3384 3822 6.1 1.6 3.8 55.0 2986 2799 3174 6.3 1.7 3.7 60.0 2488 2327 2649 6.5 1.8 3.6 65.0 2083 1945 2221 6.6 1.9 3.5 70.0 1752 1633 1871 6.8 2.0 3.4 75.0 1481 1378 1585 7.0 2.1 3.3 80.0 1258 1168 1348 7.1 2.2 3.2 85.0 1072 994.2 1151 7.3 2.3 3.2 90.0 917.7 849.4 986.0 7.4 2.4 3.1 95.0 788.5 728.6 848.4 7.6 2.5 3.0 100.0 680.0 627.4 732.6 7.7 2.6 2.9 105.0 588.6 542.2 635.0 7.9 2.8 2.9 110.0 511.2 470.2 552.2 8.0 2.9 2.8 115.0 445.4 409.1 481.7 8.2 3.0 2.7 120.0 389.3 357.1 421.5 8.3 3.1 2.7 125.0 341.7 313.0 370.4 8.4 3.2 2.6 130.0 300.9 275.2 326.6 8.5 3.4 2.5 135.0 265.4 242.5 288.4 8.7 3.5 2.5 temperature measurement b57871 leaded ntcs, lead spacing 2.5 mm s871 page 10 of 25 please read important notes and cautions and warnings at the end of this document.
b57871s0103j001 r/t no. 8016 t ( c) b 25/100 = 3988 k, r 25 = 10000 w , t r = 25 c, d r r /r r = 5% r nom [ w ] r min [ w ] r max [ w ] d r r /r r [ %] d t[ c] a (%/k) 140.0 234.8 214.2 255.4 8.8 3.6 2.4 145.0 208.3 189.8 226.8 8.9 3.8 2.4 150.0 185.3 168.6 202.0 9.0 3.9 2.3 155.0 165.3 150.3 180.4 9.1 4.0 2.3 b57871s0103f002 r/t no. 2908 t ( c) b 25/100 = 3460 k, r 25 = 10000 w , t r = 25 c, d r r /r r = 1% r nom [ w ] r min [ w ] r max [ w ] d r r /r r [ %] d t[ c] a (%/k) 55.0 453130 429090 477170 5.3 0.9 6.0 50.0 337290 320600 353990 5.0 0.9 5.8 45.0 253330 241650 265010 4.6 0.8 5.6 40.0 191910 183680 200130 4.3 0.8 5.5 35.0 146590 140770 152420 4.0 0.7 5.3 30.0 112880 108730 117030 3.7 0.7 5.1 25.0 87588 84620 90556 3.4 0.7 5.0 20.0 68471 66339 70602 3.1 0.6 4.9 15.0 53910 52375 55446 2.8 0.6 4.7 10.0 42739 41631 43848 2.6 0.6 4.6 5.0 34109 33308 34910 2.3 0.5 4.4 0.0 27396 26817 27974 2.1 0.5 4.3 5.0 22140 21722 22557 1.9 0.4 4.2 10.0 17999 17699 18298 1.7 0.4 4.1 15.0 14716 14502 14930 1.5 0.4 4.0 20.0 12099 11948 12250 1.2 0.3 3.9 25.0 10000 9900 10100 1.0 0.3 3.8 30.0 8308 8205 8411 1.2 0.3 3.7 35.0 6936 6837 7035 1.4 0.4 3.6 40.0 5819 5725 5912 1.6 0.5 3.5 45.0 4904 4816 4991 1.8 0.5 3.4 50.0 4151 4070 4232 1.9 0.6 3.3 55.0 3529 3454 3603 2.1 0.7 3.2 60.0 3012 2944 3081 2.3 0.7 3.1 65.0 2582 2519 2644 2.4 0.8 3.0 70.0 2221 2164 2278 2.6 0.9 3.0 75.0 1918 1866 1970 2.7 0.9 2.9 80.0 1663 1615 1710 2.9 1.0 2.8 85.0 1446 1403 1489 3.0 1.1 2.8 90.0 1262 1222 1301 3.1 1.2 2.7 temperature measurement b57871 leaded ntcs, lead spacing 2.5 mm s871 page 11 of 25 please read important notes and cautions and warnings at the end of this document.
b57871s0103f002 r/t no. 2908 t ( c) b 25/100 = 3460 k, r 25 = 10000 w , t r = 25 c, d r r /r r = 1% r nom [ w ] r min [ w ] r max [ w ] d r r /r r [ %] d t[ c] a (%/k) 95.0 1105 1069 1141 3.3 1.2 2.6 100.0 970.2 937.4 1003 3.4 1.3 2.6 105.0 854.6 824.7 884.6 3.5 1.4 2.5 110.0 755.1 727.7 782.4 3.6 1.5 2.4 115.0 669.0 644.0 694.0 3.7 1.6 2.4 120.0 594.4 571.5 617.3 3.9 1.6 2.3 125.0 529.5 508.5 550.5 4.0 1.7 2.3 130.0 472.9 453.6 492.2 4.1 1.8 2.2 135.0 423.4 405.7 441.1 4.2 1.9 2.2 140.0 380.0 363.8 396.3 4.3 2.0 2.1 145.0 341.9 326.9 356.9 4.4 2.1 2.1 150.0 308.3 294.5 322.1 4.5 2.2 2.0 155.0 278.6 265.8 291.3 4.6 2.3 2.0 b57871s0103h002 r/t no. 2908 t ( c) b 25/100 = 3460 k, r 25 = 10000 w , t r = 25 c, d r r /r r = 3% r nom [ w ] r min [ w ] r max [ w ] d r r /r r [ %] d t[ c] a (%/k) 55.0 453130 420030 486230 7.3 1.2 6.0 50.0 337290 313850 360740 7.0 1.2 5.8 45.0 253330 236580 270070 6.6 1.2 5.6 40.0 191910 179850 203970 6.3 1.1 5.5 35.0 146590 137840 155350 6.0 1.1 5.3 30.0 112880 106470 119280 5.7 1.1 5.1 25.0 87588 82868 92307 5.4 1.1 5.0 20.0 68471 64970 71971 5.1 1.1 4.9 15.0 53910 51296 56524 4.8 1.0 4.7 10.0 42739 40776 44702 4.6 1.0 4.6 5.0 34109 32626 35592 4.3 1.0 4.4 0.0 27396 26269 28522 4.1 1.0 4.3 5.0 22140 21280 23000 3.9 0.9 4.2 10.0 17999 17339 18658 3.7 0.9 4.1 15.0 14716 14208 15224 3.5 0.9 4.0 20.0 12099 11706 12492 3.2 0.8 3.9 25.0 10000 9700 10300 3.0 0.8 3.8 30.0 8308 8038 8577 3.2 0.9 3.7 35.0 6936 6698 7174 3.4 1.0 3.6 40.0 5819 5609 6028 3.6 1.0 3.5 45.0 4904 4718 5089 3.8 1.1 3.4 temperature measurement b57871 leaded ntcs, lead spacing 2.5 mm s871 page 12 of 25 please read important notes and cautions and warnings at the end of this document.
b57871s0103h002 r/t no. 2908 t ( c) b 25/100 = 3460 k, r 25 = 10000 w , t r = 25 c, d r r /r r = 3% r nom [ w ] r min [ w ] r max [ w ] d r r /r r [ %] d t[ c] a (%/k) 50.0 4151 3987 4315 3.9 1.2 3.3 55.0 3529 3384 3674 4.1 1.3 3.2 60.0 3012 2884 3141 4.3 1.4 3.1 65.0 2582 2468 2696 4.4 1.5 3.0 70.0 2221 2120 2323 4.6 1.5 3.0 75.0 1918 1828 2009 4.7 1.6 2.9 80.0 1663 1582 1743 4.9 1.7 2.8 85.0 1446 1374 1518 5.0 1.8 2.8 90.0 1262 1197 1327 5.1 1.9 2.7 95.0 1105 1047 1163 5.3 2.0 2.6 100.0 970.2 918.0 1022 5.4 2.1 2.6 105.0 854.6 807.6 901.7 5.5 2.2 2.5 110.0 755.1 712.6 797.5 5.6 2.3 2.4 115.0 669.0 630.6 707.4 5.7 2.4 2.4 120.0 594.4 559.6 629.2 5.9 2.5 2.3 125.0 529.5 497.9 561.1 6.0 2.6 2.3 130.0 472.9 444.2 501.6 6.1 2.7 2.2 135.0 423.4 397.3 449.6 6.2 2.8 2.2 140.0 380.0 356.2 403.9 6.3 2.9 2.1 145.0 341.9 320.1 363.7 6.4 3.0 2.1 150.0 308.3 288.3 328.3 6.5 3.2 2.0 155.0 278.6 260.3 296.9 6.6 3.3 2.0 b57871s0103j002 r/t no. 2908 t ( c) b 25/100 = 3460 k, r 25 = 10000 w , t r = 25 c, d r r /r r = 5% r nom [ w ] r min [ w ] r max [ w ] d r r /r r [ %] d t[ c] a (%/k) 55.0 453130 410960 495300 9.3 1.6 6.0 50.0 337290 307100 367480 9.0 1.5 5.8 45.0 253330 231510 275140 8.6 1.5 5.6 40.0 191910 176010 207810 8.3 1.5 5.5 35.0 146590 134900 158280 8.0 1.5 5.3 30.0 112880 104210 121540 7.7 1.5 5.1 25.0 87588 81117 94059 7.4 1.5 5.0 20.0 68471 63600 73341 7.1 1.5 4.9 15.0 53910 50218 57602 6.8 1.5 4.7 10.0 42739 39921 45557 6.6 1.4 4.6 5.0 34109 31943 36274 6.3 1.4 4.4 0.0 27396 25721 29070 6.1 1.4 4.3 temperature measurement b57871 leaded ntcs, lead spacing 2.5 mm s871 page 13 of 25 please read important notes and cautions and warnings at the end of this document.
b57871s0103j002 r/t no. 2908 t ( c) b 25/100 = 3460 k, r 25 = 10000 w , t r = 25 c, d r r /r r = 5% r nom [ w ] r min [ w ] r max [ w ] d r r /r r [ %] d t[ c] a (%/k) 5.0 22140 20837 23442 5.9 1.4 4.2 10.0 17999 16979 19018 5.7 1.4 4.1 15.0 14716 13914 15519 5.5 1.4 4.0 20.0 12099 11464 12734 5.2 1.4 3.9 25.0 10000 9500 10500 5.0 1.3 3.8 30.0 8308 7872 8743 5.2 1.4 3.7 35.0 6936 6560 7312 5.4 1.5 3.6 40.0 5819 5492 6145 5.6 1.6 3.5 45.0 4904 4620 5187 5.8 1.7 3.4 50.0 4151 3904 4398 5.9 1.8 3.3 55.0 3529 3313 3744 6.1 1.9 3.2 60.0 3012 2824 3201 6.3 2.0 3.1 65.0 2582 2416 2748 6.4 2.1 3.0 70.0 2221 2075 2367 6.6 2.2 3.0 75.0 1918 1789 2047 6.7 2.3 2.9 80.0 1663 1549 1777 6.9 2.4 2.8 85.0 1446 1345 1547 7.0 2.5 2.8 90.0 1262 1172 1352 7.1 2.6 2.7 95.0 1105 1025 1185 7.3 2.8 2.6 100.0 970.2 898.5 1042 7.4 2.9 2.6 105.0 854.6 790.5 918.8 7.5 3.0 2.5 110.0 755.1 697.5 812.6 7.6 3.1 2.4 115.0 669.0 617.2 720.8 7.7 3.2 2.4 120.0 594.4 547.7 641.1 7.9 3.4 2.3 125.0 529.5 487.3 571.6 8.0 3.5 2.3 130.0 472.9 434.7 511.1 8.1 3.6 2.2 135.0 423.4 388.8 458.0 8.2 3.7 2.2 140.0 380.0 348.6 411.5 8.3 3.9 2.1 145.0 341.9 313.2 370.5 8.4 4.0 2.1 150.0 308.3 282.1 334.4 8.5 4.1 2.0 155.0 278.6 254.7 302.5 8.6 4.3 2.0 b57871s0123f000 r/t no. 2901 t ( c) b 25/100 = 3760 k, r 25 = 12000 w , t r = 25 c, d r r /r r = 1% r nom [ w ] r min [ w ] r max [ w ] d r r /r r [ %] d t[ c] a (%/k) 55.0 767630 724060 811190 5.7 0.9 6.4 50.0 554140 524840 583450 5.3 0.8 6.3 45.0 404850 384940 424770 4.9 0.8 6.1 temperature measurement b57871 leaded ntcs, lead spacing 2.5 mm s871 page 14 of 25 please read important notes and cautions and warnings at the end of this document.
b57871s0123f000 r/t no. 2901 t ( c) b 25/100 = 3760 k, r 25 = 12000 w , t r = 25 c, d r r /r r = 1% r nom [ w ] r min [ w ] r max [ w ] d r r /r r [ %] d t[ c] a (%/k) 40.0 299120 285460 312780 4.6 0.8 6.0 35.0 223330 213890 232770 4.2 0.7 5.8 30.0 168400 161830 174970 3.9 0.7 5.6 25.0 128150 123550 132750 3.6 0.7 5.5 20.0 98376 95138 101610 3.3 0.6 5.3 15.0 75748 73472 78023 3.0 0.6 5.1 10.0 58816 57212 60421 2.7 0.5 5.0 5.0 45852 44724 46980 2.5 0.5 4.9 0.0 36033 35238 36827 2.2 0.5 4.7 5.0 28562 28003 29121 2.0 0.4 4.6 10.0 22799 22408 23191 1.7 0.4 4.5 15.0 18308 18036 18580 1.5 0.3 4.3 20.0 14796 14609 14983 1.3 0.3 4.2 25.0 12000 11880 12120 1.0 0.2 4.1 30.0 9801 9678 9925 1.3 0.3 4.0 35.0 8060 7942 8178 1.5 0.4 3.9 40.0 6663 6553 6773 1.7 0.4 3.8 45.0 5531 5430 5633 1.8 0.5 3.7 50.0 4615 4522 4709 2.0 0.6 3.6 55.0 3862 3777 3947 2.2 0.6 3.5 60.0 3248 3171 3325 2.4 0.7 3.4 65.0 2749 2679 2819 2.5 0.8 3.3 70.0 2336 2273 2399 2.7 0.8 3.2 75.0 1993 1936 2050 2.9 0.9 3.2 80.0 1707 1655 1758 3.0 1.0 3.1 85.0 1466 1420 1512 3.2 1.1 3.0 90.0 1264 1222 1306 3.3 1.1 2.9 95.0 1095 1057 1133 3.4 1.2 2.9 100.0 951.4 917.3 985.5 3.6 1.3 2.8 105.0 828.7 797.9 859.6 3.7 1.4 2.7 110.0 724.1 696.2 751.9 3.8 1.4 2.7 115.0 634.6 609.4 659.8 4.0 1.5 2.6 120.0 557.8 534.9 580.6 4.1 1.6 2.6 125.0 491.8 471.1 512.6 4.2 1.7 2.5 130.0 434.8 416.0 453.6 4.3 1.8 2.4 135.0 385.2 368.1 402.4 4.4 1.9 2.4 140.0 342.1 326.5 357.7 4.6 1.9 2.3 145.0 304.5 290.3 318.7 4.7 2.0 2.3 150.0 271.6 258.6 284.6 4.8 2.1 2.3 155.0 242.8 230.9 254.6 4.9 2.2 2.2 temperature measurement b57871 leaded ntcs, lead spacing 2.5 mm s871 page 15 of 25 please read important notes and cautions and warnings at the end of this document.
b57871s0123h000 r/t no. 2901 t ( c) b 25/100 = 3760 k, r 25 = 12000 w , t r = 25 c, d r r /r r = 3% r nom [ w ] r min [ w ] r max [ w ] d r r /r r [ %] d t[ c] a (%/k) 55.0 767630 708710 826540 7.7 1.2 6.4 50.0 554140 513760 594530 7.3 1.2 6.3 45.0 404850 376840 432870 6.9 1.1 6.1 40.0 299120 279480 318760 6.6 1.1 6.0 35.0 223330 209420 237240 6.2 1.1 5.8 30.0 168400 158460 178340 5.9 1.1 5.6 25.0 128150 120990 135320 5.6 1.0 5.5 20.0 98376 93170 103580 5.3 1.0 5.3 15.0 75748 71957 79538 5.0 1.0 5.1 10.0 58816 56036 61597 4.7 0.9 5.0 5.0 45852 43807 47897 4.5 0.9 4.9 0.0 36033 34518 37548 4.2 0.9 4.7 5.0 28562 27432 29692 4.0 0.9 4.6 10.0 22799 21952 23647 3.7 0.8 4.5 15.0 18308 17670 18947 3.5 0.8 4.3 20.0 14796 14313 15279 3.3 0.8 4.2 25.0 12000 11640 12360 3.0 0.7 4.1 30.0 9801 9482 10121 3.3 0.8 4.0 35.0 8060 7781 8339 3.5 0.9 3.9 40.0 6663 6420 6907 3.7 1.0 3.8 45.0 5531 5319 5744 3.8 1.0 3.7 50.0 4615 4429 4801 4.0 1.1 3.6 55.0 3862 3700 4024 4.2 1.2 3.5 60.0 3248 3106 3390 4.4 1.3 3.4 65.0 2749 2624 2874 4.5 1.4 3.3 70.0 2336 2226 2446 4.7 1.5 3.2 75.0 1993 1896 2090 4.9 1.5 3.2 80.0 1707 1621 1792 5.0 1.6 3.1 85.0 1466 1390 1542 5.2 1.7 3.0 90.0 1264 1197 1331 5.3 1.8 2.9 95.0 1095 1035 1154 5.4 1.9 2.9 100.0 951.4 898.3 1005 5.6 2.0 2.8 105.0 828.7 781.4 876.1 5.7 2.1 2.7 110.0 724.1 681.7 766.4 5.8 2.2 2.7 115.0 634.6 596.7 672.5 6.0 2.3 2.6 120.0 557.8 523.8 591.8 6.1 2.4 2.6 125.0 491.8 461.2 522.4 6.2 2.5 2.5 130.0 434.8 407.3 462.3 6.3 2.6 2.4 135.0 385.2 360.4 410.1 6.4 2.7 2.4 temperature measurement b57871 leaded ntcs, lead spacing 2.5 mm s871 page 16 of 25 please read important notes and cautions and warnings at the end of this document.
b57871s0123h000 r/t no. 2901 t ( c) b 25/100 = 3760 k, r 25 = 12000 w , t r = 25 c, d r r /r r = 3% r nom [ w ] r min [ w ] r max [ w ] d r r /r r [ %] d t[ c] a (%/k) 140.0 342.1 319.7 364.6 6.6 2.8 2.3 145.0 304.5 284.2 324.8 6.7 2.9 2.3 150.0 271.6 253.2 290.0 6.8 3.0 2.3 155.0 242.8 226.1 259.5 6.9 3.1 2.2 b57871s0123j000 r/t no. 2901 t ( c) b 25/100 = 3760 k, r 25 = 12000 w , t r = 25 c, d r r /r r = 5% r nom [ w ] r min [ w ] r max [ w ] d r r /r r [ %] d t[ c] a (%/k) 55.0 767630 693360 841890 9.7 1.5 6.4 50.0 554140 502670 605620 9.3 1.5 6.3 45.0 404850 368740 440960 8.9 1.5 6.1 40.0 299120 273500 324740 8.6 1.4 6.0 35.0 223330 204960 241710 8.2 1.4 5.8 30.0 168400 155090 181710 7.9 1.4 5.6 25.0 128150 118420 137880 7.6 1.4 5.5 20.0 98376 91203 105550 7.3 1.4 5.3 15.0 75748 70442 81053 7.0 1.4 5.1 10.0 58816 54860 62773 6.7 1.3 5.0 5.0 45852 42890 48815 6.5 1.3 4.9 0.0 36033 33797 38268 6.2 1.3 4.7 5.0 28562 26860 30263 6.0 1.3 4.6 10.0 22799 21496 24103 5.7 1.3 4.5 15.0 18308 17303 19313 5.5 1.3 4.3 20.0 14796 14017 15575 5.3 1.3 4.2 25.0 12000 11400 12600 5.0 1.2 4.1 30.0 9801 9286 10317 5.3 1.3 4.0 35.0 8060 7620 8500 5.5 1.4 3.9 40.0 6663 6287 7040 5.7 1.5 3.8 45.0 5531 5208 5855 5.8 1.6 3.7 50.0 4615 4337 4893 6.0 1.7 3.6 55.0 3862 3622 4102 6.2 1.8 3.5 60.0 3248 3041 3455 6.4 1.9 3.4 65.0 2749 2569 2929 6.5 2.0 3.3 70.0 2336 2180 2493 6.7 2.1 3.2 75.0 1993 1856 2130 6.9 2.2 3.2 80.0 1707 1587 1826 7.0 2.3 3.1 85.0 1466 1361 1571 7.2 2.4 3.0 90.0 1264 1172 1356 7.3 2.5 2.9 temperature measurement b57871 leaded ntcs, lead spacing 2.5 mm s871 page 17 of 25 please read important notes and cautions and warnings at the end of this document.
b57871s0123j000 r/t no. 2901 t ( c) b 25/100 = 3760 k, r 25 = 12000 w , t r = 25 c, d r r /r r = 5% r nom [ w ] r min [ w ] r max [ w ] d r r /r r [ %] d t[ c] a (%/k) 95.0 1095 1013 1176 7.4 2.6 2.9 100.0 951.4 879.2 1024 7.6 2.7 2.8 105.0 828.7 764.8 892.7 7.7 2.8 2.7 110.0 724.1 667.3 780.9 7.8 2.9 2.7 115.0 634.6 584.0 685.2 8.0 3.0 2.6 120.0 557.8 512.6 603.0 8.1 3.2 2.6 125.0 491.8 451.4 532.2 8.2 3.3 2.5 130.0 434.8 398.6 471.0 8.3 3.4 2.4 135.0 385.2 352.7 417.8 8.4 3.5 2.4 140.0 342.1 312.8 371.4 8.6 3.6 2.3 145.0 304.5 278.1 330.9 8.7 3.8 2.3 150.0 271.6 247.8 295.4 8.8 3.9 2.3 155.0 242.8 221.2 264.3 8.9 4.0 2.2 b57871s0303f000 r/t no. 8018 t ( c) b 25/100 = 3964 k, r 25 = 30000 w , t r = 25 c, d r r /r r = 1% r nom [ w ] r min [ w ] r max [ w ] d r r /r r [ %] d t[ c] a (%/k) 55.0 2472200 2325700 2618700 5.9 0.8 7.0 50.0 1750300 1653700 1846900 5.5 0.8 6.8 45.0 1253200 1189000 1317500 5.1 0.8 6.6 40.0 907060 863910 950200 4.8 0.7 6.4 35.0 663280 634100 692460 4.4 0.7 6.2 30.0 489810 469940 509680 4.1 0.7 6.0 25.0 365130 351510 378740 3.7 0.6 5.8 20.0 274640 265270 284020 3.4 0.6 5.6 15.0 208370 201890 214850 3.1 0.6 5.4 10.0 159410 154910 163900 2.8 0.5 5.3 5.0 122920 119800 126030 2.5 0.5 5.1 0.0 95501 93336 97666 2.3 0.5 5.0 5.0 74745 73245 76244 2.0 0.4 4.8 10.0 58911 57877 59944 1.8 0.4 4.7 15.0 46745 46038 47451 1.5 0.3 4.6 20.0 37332 36855 37808 1.3 0.3 4.4 25.0 30000 29700 30300 1.0 0.2 4.3 30.0 24253 23945 24561 1.3 0.3 4.2 35.0 19720 19428 20012 1.5 0.4 4.1 40.0 16123 15851 16395 1.7 0.4 4.0 45.0 13252 13002 13502 1.9 0.5 3.9 temperature measurement b57871 leaded ntcs, lead spacing 2.5 mm s871 page 18 of 25 please read important notes and cautions and warnings at the end of this document.
b57871s0303f000 r/t no. 8018 t ( c) b 25/100 = 3964 k, r 25 = 30000 w , t r = 25 c, d r r /r r = 1% r nom [ w ] r min [ w ] r max [ w ] d r r /r r [ %] d t[ c] a (%/k) 50.0 10949 10721 11177 2.1 0.6 3.8 55.0 9091 8885 9297 2.3 0.6 3.7 60.0 7584 7399 7770 2.4 0.7 3.6 65.0 6356 6189 6523 2.6 0.8 3.5 70.0 5351 5201 5500 2.8 0.8 3.4 75.0 4524 4390 4657 3.0 0.9 3.3 80.0 3840 3720 3960 3.1 1.0 3.2 85.0 3273 3166 3380 3.3 1.0 3.2 90.0 2800 2704 2896 3.4 1.1 3.1 95.0 2405 2319 2491 3.6 1.2 3.0 100.0 2073 1995 2150 3.7 1.3 2.9 105.0 1792 1723 1862 3.9 1.3 2.9 110.0 1555 1493 1618 4.0 1.4 2.8 115.0 1354 1298 1410 4.1 1.5 2.7 120.0 1182 1132 1233 4.3 1.6 2.7 125.0 1036 990.3 1081 4.4 1.7 2.6 130.0 910.0 868.9 951.0 4.5 1.8 2.6 135.0 801.7 764.6 838.9 4.6 1.8 2.5 140.0 708.3 674.6 741.9 4.8 1.9 2.5 145.0 627.4 596.9 658.0 4.9 2.0 2.4 150.0 557.2 529.5 585.0 5.0 2.1 2.3 155.0 496.1 470.9 521.4 5.1 2.2 2.3 b57871s0303h000 r/t no. 8018 t ( c) b 25/100 = 3964 k, r 25 = 30000 w , t r = 25 c, d r r /r r = 3% r nom [ w ] r min [ w ] r max [ w ] d r r /r r [ %] d t[ c] a (%/k) 55.0 2472200 2276300 2668200 7.9 1.1 7.0 50.0 1750300 1618700 1881900 7.5 1.1 6.8 45.0 1253200 1163900 1342600 7.1 1.1 6.6 40.0 907060 845770 968340 6.8 1.1 6.4 35.0 663280 620830 705730 6.4 1.0 6.2 30.0 489810 460140 519480 6.1 1.0 6.0 25.0 365130 344210 386040 5.7 1.0 5.8 20.0 274640 259780 289510 5.4 1.0 5.6 15.0 208370 197730 219020 5.1 0.9 5.4 10.0 159410 151720 167090 4.8 0.9 5.3 5.0 122920 117340 128490 4.5 0.9 5.1 0.0 95501 91426 99576 4.3 0.9 5.0 temperature measurement b57871 leaded ntcs, lead spacing 2.5 mm s871 page 19 of 25 please read important notes and cautions and warnings at the end of this document.
b57871s0303h000 r/t no. 8018 t ( c) b 25/100 = 3964 k, r 25 = 30000 w , t r = 25 c, d r r /r r = 3% r nom [ w ] r min [ w ] r max [ w ] d r r /r r [ %] d t[ c] a (%/k) 5.0 74745 71750 77739 4.0 0.8 4.8 10.0 58911 56699 61122 3.8 0.8 4.7 15.0 46745 45103 48386 3.5 0.8 4.6 20.0 37332 36108 38555 3.3 0.7 4.4 25.0 30000 29100 30900 3.0 0.7 4.3 30.0 24253 23460 25046 3.3 0.8 4.2 35.0 19720 19033 20406 3.5 0.9 4.1 40.0 16123 15528 16717 3.7 0.9 4.0 45.0 13252 12737 13767 3.9 1.0 3.9 50.0 10949 10503 11396 4.1 1.1 3.8 55.0 9091 8703 9479 4.3 1.2 3.7 60.0 7584 7247 7921 4.4 1.2 3.6 65.0 6356 6062 6650 4.6 1.3 3.5 70.0 5351 5094 5607 4.8 1.4 3.4 75.0 4524 4299 4748 5.0 1.5 3.3 80.0 3840 3643 4037 5.1 1.6 3.2 85.0 3273 3100 3446 5.3 1.7 3.2 90.0 2800 2648 2952 5.4 1.8 3.1 95.0 2405 2271 2539 5.6 1.9 3.0 100.0 2073 1954 2191 5.7 1.9 2.9 105.0 1792 1687 1897 5.9 2.0 2.9 110.0 1555 1462 1649 6.0 2.1 2.8 115.0 1354 1271 1437 6.1 2.2 2.7 120.0 1182 1108 1257 6.3 2.3 2.7 125.0 1036 969.6 1102 6.4 2.4 2.6 130.0 910.0 850.7 969.2 6.5 2.5 2.6 135.0 801.7 748.5 854.9 6.6 2.6 2.5 140.0 708.3 660.5 756.1 6.8 2.8 2.5 145.0 627.4 584.4 670.5 6.9 2.9 2.4 150.0 557.2 518.4 596.1 7.0 3.0 2.3 155.0 496.1 461.0 531.3 7.1 3.1 2.3 b57871s0303j000 r/t no. 8018 t ( c) b 25/100 = 3964 k, r 25 = 30000 w , t r = 25 c, d r r /r r = 5% r nom [ w ] r min [ w ] r max [ w ] d r r /r r [ %] d t[ c] a (%/k) 55.0 2472200 2226900 2717600 9.9 1.4 7.0 50.0 1750300 1583700 1916900 9.5 1.4 6.8 45.0 1253200 1138800 1367700 9.1 1.4 6.6 temperature measurement b57871 leaded ntcs, lead spacing 2.5 mm s871 page 20 of 25 please read important notes and cautions and warnings at the end of this document.
b57871s0303j000 r/t no. 8018 t ( c) b 25/100 = 3964 k, r 25 = 30000 w , t r = 25 c, d r r /r r = 5% r nom [ w ] r min [ w ] r max [ w ] d r r /r r [ %] d t[ c] a (%/k) 40.0 907060 827630 986480 8.8 1.4 6.4 35.0 663280 607570 718990 8.4 1.4 6.2 30.0 489810 450340 529280 8.1 1.4 6.0 25.0 365130 336910 393350 7.7 1.3 5.8 20.0 274640 254280 295000 7.4 1.3 5.6 15.0 208370 193560 223190 7.1 1.3 5.4 10.0 159410 148540 170270 6.8 1.3 5.3 5.0 122920 114880 130950 6.5 1.3 5.1 0.0 95501 89516 101490 6.3 1.3 5.0 5.0 74745 70255 79234 6.0 1.2 4.8 10.0 58911 55521 62301 5.8 1.2 4.7 15.0 46745 44168 49321 5.5 1.2 4.6 20.0 37332 35362 39302 5.3 1.2 4.4 25.0 30000 28500 31500 5.0 1.2 4.3 30.0 24253 22975 25531 5.3 1.3 4.2 35.0 19720 18639 20801 5.5 1.3 4.1 40.0 16123 15206 17040 5.7 1.4 4.0 45.0 13252 12472 14032 5.9 1.5 3.9 50.0 10949 10284 11615 6.1 1.6 3.8 55.0 9091 8521 9660 6.3 1.7 3.7 60.0 7584 7095 8073 6.4 1.8 3.6 65.0 6356 5935 6777 6.6 1.9 3.5 70.0 5351 4987 5714 6.8 2.0 3.4 75.0 4524 4209 4838 7.0 2.1 3.3 80.0 3840 3567 4114 7.1 2.2 3.2 85.0 3273 3035 3511 7.3 2.3 3.2 90.0 2800 2592 3008 7.4 2.4 3.1 95.0 2405 2223 2587 7.6 2.5 3.0 100.0 2073 1912 2233 7.7 2.6 2.9 105.0 1792 1651 1933 7.9 2.7 2.9 110.0 1555 1431 1680 8.0 2.9 2.8 115.0 1354 1244 1464 8.1 3.0 2.7 120.0 1182 1085 1280 8.3 3.1 2.7 125.0 1036 948.9 1123 8.4 3.2 2.6 130.0 910.0 832.5 987.4 8.5 3.3 2.6 135.0 801.7 732.5 870.9 8.6 3.4 2.5 140.0 708.3 646.3 770.3 8.8 3.6 2.5 145.0 627.4 571.8 683.1 8.9 3.7 2.4 150.0 557.2 507.2 607.3 9.0 3.8 2.3 155.0 496.1 451.1 541.2 9.1 4.0 2.3 temperature measurement b57871 leaded ntcs, lead spacing 2.5 mm s871 page 21 of 25 please read important notes and cautions and warnings at the end of this document.
temperature measurement b57871 leaded ntcs, lead spacing 2.5 mm s871 page 22 of 25 please read important notes and cautions and warnings at the end of this document.
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 before storage. storage conditions in original packaging: storage temperature 25 c ... +45 c, relative humidity 75% annual mean, maximum 95%, dew precipitation is inadmissible. 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. avoid contamination of thermistors surface during storage, handling and processing. avoid storage of thermistor in harmful environments like corrosive gases (sox, cl etc). after opening the factory seals, such as polyvinyl-sealed packages, use the smds as soon as possible. solder thermistors after shipment from epcos within the time specified: smds: 12 months leaded components: 24 months handling ntc thermistors must not be dropped. chip-offs must not be caused during handling of ntcs. components must not be touched with bare hands. gloves are recommended. avoid contamination of thermistor surface during handling. 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. mounting when ntc thermistors are encapsulated with sealing material or overmolded with plastic material, the precautions given in chapter ?mounting instructions?, ?sealing, potting and overmolding? must be observed. electrode must not be scratched before/during/after the mounting process. contacts and housings used for assembly with thermistor have to be clean before mounting. during operation, the thermistor?s surface temperature can be very high (icl). ensure that adjacent components are placed at a sufficient distance from the thermistor to allow for proper cooling ot the thermistors. 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 this temperature. make sure that thermistors (icls) are adequately ventilated to avoid overheating. avoid contamination of thermistor surface during processing. temperature measurement b57871 leaded ntcs, lead spacing 2.5 mm s871 page 23 of 25 please read important notes and cautions and warnings at the end of this document.
operation use thermistors only within the specified operating temperature range. use thermistors only within the specified voltage and current ranges (icls). environmental conditions must not harm the thermistors. use thermistors only in normal atmospheric conditions. contact of ntc thermistors with any liquids and solvents should be prevented. it must be ensured that no water enters the ntc thermistor (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. be sure to provide an appropriate fail-safe function to prevent secondary product damage caused by malfunction (e.g. use vdr for limitation of overvoltage condition). temperature measurement b57871 leaded ntcs, lead spacing 2.5 mm s871 page 24 of 25 please read important notes and cautions and warnings at the end of this document.
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 re- quirements 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 incum- bent on the customer to check and decide whether an epcos product with the properties de- scribed 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 passive electronic compon- ents 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 applica- tions requiring a very high level of operational safety and especially in customer applications in which the malfunction or failure of a passive electronic component could endanger human life or health (e.g. in accident prevention or life-saving 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 a passive 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 or- der. we also reserve the right to discontinue production and delivery of products . con- sequently, we cannot guarantee that all products named in this publication will always be available. 6. unless otherwise agreed in individual contracts, all orders are subject to the current ver- sion of the ?general terms of delivery for products and services in the electrical in- dustry? published by the german electrical and electronics industry association (zvei) . 7. the trade names epcos, epcos-jones, baoke, ceradiode, cssp, mlsc, phasecap, phasemod, sifi, sikorel, silvercap, simid, siov, sip5d, sip5k, ultracap, 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. important notes page 25 of 25

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