2381 640 3/4/6.... Vishay BCcomponents NTC Thermistors, Accuracy Line FEATURES * * * * * Accuracy over a wide temperature range High stability over a long life Excellent price/performance ratio Old part number was 2322 640 3/4/6.... Component in accordance to RoHS 2002/95/EC and WEEE 2002/96/EC APPLICATIONS * Temperature sensing and control QUICK REFERENCE DATA PARAMETER VALUE Resistance value at 25 C Tolerance on R25-value Tolerance on B25/85-value Maximum dissipation Dissipation factor (for information only) Response time Thermal time constant (for information only) Operating temperature range: at zero dissipation; continuously at zero dissipation; for short periods at maximum dissipation (500 mW) Climatic category Mass 3.3 to 470 k 2%; 3%; 5%; 10% 0.5% to 3% 500 mW 7 mW/K 8.5 mW/K (for 640..338 to 689) 1.2 s 15 s These thermistors have a negative temperature coefficient. The device consists of a chip with two tinned solid copper-plated leads. It is grey lacquered and colour coded, but not insulated. PACKAGING The thermistors are packed in bulk or tape on reel; see code numbers and relevant packaging quantities. -40 to +125 C 150 C 0 to 55 C 40/125/56 0.3 g ELECTRICAL DATA AND ORDERING INFORMATION R25 () B25/85-VALUE 3.3 4.7 6.8 10 15 22 33 47 68 100 150 220 330 470 680 1000 1500 2880 K 3% 2880 K 3% 2880 K 3% 2990 K 3% 3041 K 3% 3136 K 3% 3390 K 3% 3390 K 3% 3390 K 3% 3560 K 0.75% 3560 K 0.75% 3560 K 0.75% 3560 K 0.75% 3560 K 0.5% 3560 K 0.5% 3528 K 0.5% 3528 K 0.5% www.vishay.com 70 COLOR CODE (see dimensions drawing and note 1) CATALOG NUMBER 2381 640 6.... R25 2% R25 3% R25 5% R25 10% I II III 4338 4478 4688 4109 4159 4229 4339 4479 4689 4101 4151 4221 4331 4471 4681 4102 4152 6338 6478 6688 6109 6159 6229 6339 6479 6689 6101 6151 6221 6331 6471 6681 6102 6152 3338 3478 3688 3109 3159 3229 3339 3479 3689 3101 3151 3221 3331 3471 3681 3102 3152 2338 2478 2688 2109 2159 2229 2339 2479 2689 2101 2151 2221 2331 2471 2681 2102 2152 orange yellow blue brown brown red orange yellow blue brown brown red orange yellow blue brown brown orange violet grey black green red orange violet grey black green red orange violet grey black green gold gold gold black black black black black black brown brown brown brown brown brown red red For technical questions contact: nlr.europe@vishay.com Document Number: 29049 Revision: 12-Apr-05 2381 640 3/4/6.... Vishay BCcomponents NTC Thermistors, Accuracy Line R25 () B25/85-VALUE R25 2% R25 3% R25 5% R25 10% I II III 4202 4222 4272 4332 4472 4682 4103 4123 4153 4223 4333 4473 4683 4104 4154 4224 4334 4474 6202 6222 6272 6332 6472 6682 6103 6123 6153 6223 6333 6473 6683 6104 6154 6224 6334 6474 3202 3222 3272 3332 3472 3682 3103 3123 3153 3223 3333 3473 3683 3104 3154 3224 3334 3474 2202 2222 2272 2332 2472 2682 2103 2123 2153 2223 2333 2473 2683 2104 2154 2224 2334 2474 red red red orange yellow blue brown brown brown red orange yellow blue brown brown red orange yellow black red violet orange violet grey black red green red orange violet grey black green red orange violet red red red red red red orange orange orange orange orange orange orange yellow yellow yellow yellow yellow 3528 K 0.5% 3977 K 0.75% 3977 K 0.75% 3977 K 0.75% 3977 K 0.75% 3977 K 0.75% 3977 K 0.75% 3740 K 2% 3740 K 2% 3740 K 2% 4090 K 1.5% 4090 K 1.5% 4190 K 1.5% 4190 K 1.5% 4370 K 2.5% 4370 K 2.5% 4570 K 1.5% 4570 K 1.5% 2000 2200 2700 3300 4700 6800 10000 12000 15000 22000 33000 47000 68000 100000 150000 220000 330000 470000 COLOR CODE (see dimensions drawing and note 1) CATALOG NUMBER 2381 640 6.... Notes DERATING AND TEMPERATURE TOLERANCES 1. Dependent upon R25-tolerance, the band IV is coloured as follows: a) for R25 2%, band IV is coloured red Power derating curve. P (%) b) for R25 3%, band IV is coloured orange 100 c) for R25 5%, band IV is coloured gold d) for R25 10%, band IV is coloured silver. 0 40 DIMENSIONS in millimeters 0 55 85 Tamb ( o C) 125 PHYSICAL DIMENSIONS FOR RELEVANT TYPE H2 CODE NUMBER Bmax 2381 640 ..... 6.338 to 6.221 5.0 H1 6.331 to 6.474 3.3 0.6 0.5 0.06 B T L H1 d 0.6 0.06 H2 L P Tmax max MIN. MAX. 1.0 4.0 6.0 24 1.5 2.54 4.0 - 2.0 1.0 6.0 24 1.5 2.54 3.0 MARKING The thermistors are marked with coloured bands; see dimensions drawing and "Electrical data and ordering information". d P 2381 640 6.338 to 6.474. MOUNTING By soldering in any position. Document Number: 29049 Revision: 12-Apr-05 For technical questions contact: nlr.europe@vishay.com www.vishay.com 71 2381 640 3/4/6.... Vishay BCcomponents NTC Thermistors, Accuracy Line TEMPERATURE DEVIATION AS A FUNCTION OF THE AMBIENT TEMPERATURE. T (K) 3.0 TEMPERATURE DEVIATION AS A FUNCTION OF THE AMBIENT TEMPERATURE. 5 1 Curves valid for 2.2 to 10 k. Curve 1: R25/R25 = 5%. Curve 2: R25/R25 = 3%. Curve 3: R25/R25 = 2%. Curve 4: R25/R25 = 1% (for 2381 640 5.... series only). 2.5 2 2.0 Curves valid for 12 to 22 k. Curve 1: R25/R25 = 5%. Curve 2: R25/R25 = 3%. Curve 3: R25/R25 = 2%. 1 T (K) 4 2 3 3 3 1.5 4 2 1.0 1 0.5 0 40 0 40 80 0 40 120 160 o T ( C) TEMPERATURE DEVIATION AS A FUNCTION OF THE AMBIENT TEMPERATURE. T (K) 4.0 1 Curves valid for 33 to 47 k. Curve 1: R25/R25 = 5%. Curve 2: R25/R25 = 3%. Curve 3: R25/R25 = 2%. Curve 4: R25/R25 = 1% (for 2381 640 5.... series only). 3.5 2 3.0 3 2.5 0 40 80 TEMPERATURE DEVIATION AS A FUNCTION OF THE AMBIENT TEMPERATURE. T (K) 4.0 2 3.0 3 2.5 4 2.0 2.0 1.5 1.5 1.0 1.0 0.5 0.5 0 40 80 0 40 120 160 o T ( C) TEMPERATURE DEVIATION AS A FUNCTION OF THE AMBIENT TEMPERATURE. T (K) 6 5 1 4 2 3 Curves valid for 68 to 100 k. Curve 1: R25/R25 = 5%. Curve 2: R25/R25 = 3%. Curve 3: R25/R25 = 2%. Curve 4: R25/R25 = 1% (for 2381 640 5.... series only). 1 3.5 4 0 40 120 160 o T ( C) Curves valid for 150 to 220 k. Curve 1: R25/R25 = 5%. Curve 2: R25/R25 = 3%. Curve 3: R25/R25 = 2%. 3 0 40 80 120 160 o T ( C) TEMPERATURE DEVIATION AS A FUNCTION OF THE AMBIENT TEMPERATURE. T (K) 4.0 Curves valid for 330 to 470 k. Curve 1: R25/R25 = 5%. Curve 2: R25/R25 = 3%. Curve 3: R25/R25 = 2%. 1 3.5 3.0 2 2.5 3 2.0 1.5 2 1.0 1 0.5 0 40 0 www.vishay.com 72 40 80 120 160 o T ( C) 0 40 0 40 For technical questions contact: nlr.europe@vishay.com 80 120 160 o T ( C) Document Number: 29049 Revision: 12-Apr-05 2381 640 3/4/6.... Vishay BCcomponents NTC Thermistors, Accuracy Line RT VALUE AND TOLERANCE These thermistors have a narrow tolerance on the B-value, the result of which provides a very small tolerance on the nominal resistance value over a wide temperature range. For this reason the usual graphs of R = f(T) are replaced by Resistance Values at Intermediate Temperatures Tables, together with a formula to calculate the characteristics with a high precision. DETERMINATION OF THE RESISTANCE/TEMPERATURE DEVIATION FROM NOMINAL VALUE The total resistance deviation is obtained by combining the `R25-tolerance' and the `resistance deviation due to B-tolerance'. When: X = R25-tolerance FORMULAE TO DETERMINE NOMINAL RESISTANCE VALUES Y = resistance deviation due to B-tolerance Z = complete resistance deviation, The resistance values at intermediate temperatures, or the operating temperature values, can be calculated using the following interpolation laws (extended "Steinhart and Hart"): R (T) = R ref x e 2 TC = temperature coefficient (1) 2 R 3 R -1 R T (R) = A 1 + B 1 ln ---------- + C 1 ln ---------- + D 1 ln ---------- R ref R ref R ref (2) x 100 % or Z X + Y. When: 3 (A + B T + C T + D T ) X Y Z = 1 + ---------- x 1 + ---------- - 1 100 100 then: T = temperature deviation, Z then: T = ------TC where: A, B, C, D, A1, B1, C1 and D1 are constant values depending on the material concerned; see table below. Rref is the resistance value at a reference temperature (in this event 25 C). T is the temperature in K. Formulae numbered (1) and (2) are interchangeable with an error of max. 0.005 C in the range 25 C to 125 C and max. 0.015 C in the range -40 C to +25 C. The temperature tolerances are plotted in the graphs on the previous page. Example: at 0 C, assume X = 5%, Y = 0.89% and TC = 5.08%/K (see Table ), then: 5 Z = 1 + ---------100 0.89 x 1 + ----------- - 1 x 100% 100 * = { 1.05 x 1.0089 - 1 } x 100% = 5.9345% ( 5.93% ) Z 5.93 T = -------- = ----------- = 1.167 C ( 1.17 C) TC 5.08 A NTC with a R25-value of 10 k has a value of 32.56 k between -1.17 and +1.17 C. PARAMETERS FOR DETERMINING NOMINAL RESISTANCE VALUES B25/85 (K) NAME TOL. B VALU E% A B (K) C (105K2) 1 2 2880 2990 mat O. with Bn = 2880K mat P. with Bn = 3990K 3 3 -9.094 -10.2296 2251.74 2887.62 229098 132336 3 3041 mat Q. with Bn = 3041K 3 -11.1334 3658.73 -102895 4 5 3136 3390 3528(1 3528(2 3560 3740 3977 4090 4190 4370 4570 mat R. with Bn = 3136K mat S. with Bn = 3390K 3 3 mat I. with Bn = 3528K 0.5 -12.4493 -12.6814 -12.0596 -21.0704 -13.0723 -13.8973 -14.6337 -15.5322 -16.0349 -16.8717 -17.6439 4702.74 4391.97 3687.667 11903.95 4190.574 4557.725 4791.842 5229.973 5459.339 5759.15 6022.726 -402687 -232807 -7617.13 -2504699 -47158.40 -98275 -115334 -160451 -191141 -194267 -203157 6 7 mat H. with Bn = 3560K 8 mat B. with Bn = 3740K 9 mat A. with Bn = 3977K 10 mat C. with Bn = 4090K 11 mat D. with Bn = 4190K 12 mat E. with Bn = 4370K 13 mat F. with Bn = 4570K Notes 1. Temperature < 25 C. 2. Temperature 25 C. Document Number: 29049 Revision: 12-Apr-05 0.75 2 0.75 1.5 1.5 2.5 1.5 D A1 (10-3) B1 (10-4K-1) C1 (10-6K-2) D1 (10-7K-3) -27448200 -25025100 516652 616652 3196830 1509643 -5914730 247033800 -11992560. -7522357 -3730535 -5414091 -3328322 -6869149 -7183526 3.354016 3.354016 3.495020 3.415560 2.09596E-06 4.95546E-06 4.26062E-07 4.36424E-07 3.354016 3.349290 3.68384E-06 7.05046E-08 3.354016 3.354016 3.354016 3.354016 3.354016 3.354016 3.354016 3.354016 3.354016 3.354016 3.354016 3.243880 2.993410 2.909670 2.933910 2.884190 2.744030 2.569850 2.519110 2.460380 2.367720 2.264100 2.65801E-06 2.13513E-06 1.63214E-06 3.49431E-06 4.11803E-06 3.66694E-06 2.62013E-06 3.51094E-06 3.40538E-06 3.58514E-06 3.27818E-06 -2.70156E-0 -8.05672E-0 7.1922E-08 -7.71269E-0 1.78679E-07 1.37549E-07 6.38309E-08 1.10518E-07 1.03424E-07 1.25535E-07 1.09763E-07 For technical questions contact: nlr.europe@vishay.com www.vishay.com 73 2381 640 3/4/6.... Vishay BCcomponents NTC Thermistors, Accuracy Line RESISTANCE VALUES AT INTERMEDIATE TEMPERATURES Toper (C) -40 -35 -30 -25 -20 -15 -10 -5 0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 115 120 125 130 135 140 145 150 RT/R25 13.6364 10.6806 8.4350 6.7148 5.3866 4.3532 3.5432 2.9035 2.3950 1.9880 1.6602 1.3944 1.1777 1.0000 0.8534 0.7319 0.6307 0.5459 0.4746 0.4143 0.3631 0.3194 0.2820 0.2499 0.2222 0.1982 0.1774 0.1592 0.1433 0.1294 0.1171 0.1063 0.0967 0.0882 0.0806 0.0739 0.0678 0.0624 0.0575 R DUE TO B-TOLERANCE (%) -4.97 -4.80 -4.64 -4.48 -4.33 -4.19 -4.05 -3.92 -3.79 -3.66 -3.55 -3.43 -3.32 -3.22 -3.12 -3.02 -2.93 -2.84 -2.76 -2.68 -2.60 -2.52 -2.45 -2.38 -2.32 -2.25 -2.19 -2.13 -2.07 -2.02 -1.97 -1.92 -1.87 -1.82 -1.77 -1.73 -1.69 -1.65 -1.61 8.08 7.30 6.55 5.84 5.15 4.49 3.85 3.24 2.65 2.08 1.54 1.01 0.49 0.00 0.48 0.94 1.39 1.82 2.24 2.65 3.04 3.43 3.80 4.16 4.51 4.85 5.19 5.51 5.82 6.13 6.43 6.72 7.00 7.28 7.55 7.81 8.07 8.32 8.56 R25 () TC (%/K) 2381 640 .....; see note 1 at end of tables 6.338 45.00 35.25 27.84 22.16 17.78 14.37 11.69 9.58 7.90 6.56 5.48 4.60 3.89 3.30 2.82 2.42 2.08 1.80 1.57 1.37 1.20 1.05 0.93 0.82 0.73 0.65 0.59 0.53 0.47 0.43 0.39 0.35 0.32 0.29 0.27 0.24 0.22 0.21 0.19 6.478 64.09 50.20 39.64 31.56 25.32 20.46 16.65 13.65 11.26 9.34 7.80 6.55 5.54 4.70 4.01 3.44 2.96 2.57 2.23 1.95 1.71 1.50 1.33 1.17 1.04 0.93 0.83 0.75 0.67 0.61 0.55 0.50 0.45 0.41 0.38 0.35 0.32 0.29 0.27 6.688 92.73 72.63 57.36 45.66 36.63 29.60 24.09 19.74 16.29 13.52 11.29 9.48 8.01 6.80 5.80 4.98 4.29 3.71 3.23 2.82 2.47 2.17 1.92 1.70 1.51 1.35 1.21 1.08 0.97 0.88 0.80 0.72 0.66 0.60 0.55 0.50 0.46 0.42 0.39 RESISTANCE VALUES AT INTERMEDIATE TEMPERATURES Toper (C) -40 -35 -30 -25 -20 -15 -10 -5 0 www.vishay.com 74 R25 () RT/R25 R DUE TO B-TOLERANCE (%) TC (%/K) 2381 640 .....; see note 1 at end of tables 13.675 10.763 8.5318 6.8097 5.4717 4.4253 3.6017 2.9494 2.4295 8.39 7.58 6.81 6.06 5.35 4.66 4.00 3.37 2.75 -4.86 -4.72 -4.58 -4.44 -4.31 -4.18 -4.06 -3.94 -3.82 6.109 136.75 107.63 85.32 68.10 54.72 44.25 36.02 29.49 24.30 For technical questions contact: nlr.europe@vishay.com Document Number: 29049 Revision: 12-Apr-05 2381 640 3/4/6.... NTC Thermistors, Accuracy Line Toper (C) 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 115 120 125 130 135 140 145 150 Vishay BCcomponents R25 () RT/R25 R DUE TO B-TOLERANCE (%) TC (%/K) 2381 640 .....; see note 1 at end of tables 2.0128 1.6767 1.4042 1.1821 1.0000 0.8500 0.7259 0.6226 0.5363 0.4639 0.4029 0.3512 0.3073 0.2698 0.2377 0.2101 0.1864 0.1658 0.1479 0.1323 0.1187 0.1068 0.0964 0.0871 0.0790 0.0717 0.0653 0.0596 0.0545 0.0500 2.16 1.59 1.04 0.51 0.00 0.50 0.98 1.44 1.89 2.33 2.75 3.16 3.56 3.95 4.32 4.69 5.04 5.38 5.72 6.05 6.36 6.67 6.98 7.27 7.56 7.84 8.11 8.37 8.63 8.89 -3.71 -3.60 -3.50 -3.39 -3.30 -3.20 -3.11 -3.03 -2.94 -2.86 -2.78 -2.71 -2.64 -2.57 -2.50 -2.43 -2.37 -2.31 -2.25 -2.20 -2.14 -2.09 -2.04 -1.99 -1.94 -1.90 -1.85 -1.81 -1.77 -1.73 6.109 20.13 16.77 14.04 11.82 10.00 8.50 7.26 6.23 5.36 4.64 4.03 3.51 3.07 2.70 2.38 2.10 1.86 1.66 1.48 1.32 1.19 1.07 0.96 0.87 0.79 0.72 0.65 0.60 0.55 0.50 RESISTANCE VALUES AT INTERMEDIATE TEMPERATURES Toper (C) -40 -35 -30 -25 -20 -15 -10 -5 0 5 10 15 20 25 30 35 40 45 R25 () RT/R25 R DUE TO B-TOLERANCE (%) TC (%/K) 2381 640 .....; see note 1 at end of tables 17.042 12.993 10.017 7.8037 6.1382 4.8719 3.8996 3.1461 2.5571 2.0930 1.7245 1.4298 1.1924 1.0000 0.8431 0.7144 0.6083 0.5203 8.53 7.71 6.92 6.17 5.44 4.74 4.07 3.42 2.80 2.20 1.62 1.06 0.52 0.00 0.50 0.99 1.47 1.92 -5.54 -5.31 -5.10 -4.90 -4.71 -4.53 -4.37 -4.22 -4.07 -3.94 -3.81 -3.69 -3.57 -3.47 -3.36 -3.26 -3.17 -3.08 6.159 255.63 194.90 150.26 117.06 92.07 73.08 58.49 47.19 38.36 31.40 25.87 21.45 17.89 15.00 12.65 10.72 9.12 7.80 Document Number: 29049 Revision: 12-Apr-05 For technical questions contact: nlr.europe@vishay.com www.vishay.com 75 2381 640 3/4/6.... Vishay BCcomponents Toper (C) 50 55 60 65 70 75 80 85 90 95 100 105 110 115 120 125 130 135 140 145 150 NTC Thermistors, Accuracy Line R25 () RT/R25 R DUE TO B-TOLERANCE (%) TC (%/K) 2381 640 .....; see note 1 at end of tables 0.4470 0.3856 0.3339 0.2903 0.2533 0.2218 0.1948 0.1717 0.1518 0.1346 0.1196 0.1067 0.0954 0.0855 0.0768 0.0691 0.0624 0.0565 0.0512 0.0465 0.0423 2.37 2.80 3.21 3.62 4.01 4.39 4.77 5.13 5.48 5.82 6.15 6.47 6.79 7.09 7.39 7.69 7.97 8.25 8.52 8.78 9.04 -3.00 -2.92 -2.84 -2.76 -2.69 -2.62 -2.56 -2.50 -2.44 -2.38 -2.32 -2.27 -2.22 -2.17 -2.12 -2.07 -2.03 -1.98 -1.94 -1.90 -.86 6.159 6.70 5.78 5.01 4.35 3.80 3.33 2.92 2.58 2.28 2.02 1.79 1.60 1.43 1.28 1.15 1.04 0.94 0.85 0.77 0.70 0.63 RESISTANCE VALUES AT INTERMEDIATE TEMPERATURES Toper (C) -40 -35 -30 -25 -20 -15 -10 -5 0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 www.vishay.com 76 R25 () RT/R25 R DUE TO B-TOLERANCE (%) TC (%/K) 2381 640 .....; see note 1 at end of tables 17.042 12.993 10.017 7.8037 6.1382 4.8719 3.8996 3.1461 2.5571 2.0930 1.7245 1.4298 1.1924 1.0000 0.8431 0.7144 0.6083 0.5203 0.4470 0.3856 0.3339 0.2903 0.2533 0.2218 0.1948 0.1717 0.1518 8.80 7.95 7.14 6.36 5.61 4.89 4.20 3.53 2.89 2.27 1.67 1.10 0.54 0.00 0.52 1.02 1.51 1.98 2.44 2.88 3.32 3.73 4.14 4.53 4.91 5.29 5.65 -5.54 -5.31 -5.10 -4.90 -4.71 -4.53 -4.37 -4.22 -4.07 -3.94 -3.81 -3.69 -3.57 -3.47 -3.36 -3.26 -3.17 -3.08 -3.00 -2.92 -2.84 -2.76 -2.69 -2.62 -2.56 -2.50 -2.44 6.229 374.92 285.85 220.38 171.68 135.04 107.18 85.79 69.21 56.26 46.05 37.94 31.45 26.23 22.00 18.55 15.72 13.38 11.45 9.83 8.48 7.35 6.39 5.57 4.88 4.29 3.78 3.34 For technical questions contact: nlr.europe@vishay.com Document Number: 29049 Revision: 12-Apr-05 2381 640 3/4/6.... Vishay BCcomponents NTC Thermistors, Accuracy Line Toper (C) 95 100 105 110 115 120 125 130 135 140 145 150 R25 () RT/R25 R DUE TO B-TOLERANCE (%) TC (%/K) 2381 640 .....; see note 1 at end of tables 0.1346 0.1196 0.1067 0.0954 0.0855 0.0768 0.0691 0.0624 0.0565 0.0512 0.0165 0.0423 6.00 6.34 6.68 7.00 7.32 7.62 7.93 8.22 8.50 8.78 9.06 9.32 -2.38 -2.32 -2.27 -2.22 -2.17 -2.12 -2.07 -2.03 -1.98 -1.94 -1.90 -1.86 6.229 2.96 2.63 2.35 2.10 1.88 1.69 1.52 1.37 1.24 1.13 1.02 0.93 RESISTANCE VALUES AT INTERMEDIATE TEMPERATURES Toper (C) -40 -35 -30 -25 -20 -15 -10 -5 0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 115 120 125 130 135 RT/R25 21.4241 16.0147 12.1074 9.2511 7.1395 5.5619 4.3715 3.4647 2.7678 2.2276 1.8057 1.4735 1.2102 1.0000 0.8311 0.6946 0.5835 0.4927 0.4180 0.3563 0.3050 0.2622 .02263 0.1961 0.1705 0.1489 0.1304 0.1146 0.1010 0.0893 0.0792 0.0704 0.0628 0.0561 0.0503 0.0452 Document Number: 29049 Revision: 12-Apr-05 R DUE TO B-TOLERANCE (%) 9.51 8.59 7.72 6.87 6.06 5.29 4.54 3.82 3.12 2.45 1.81 1.18 0.58 0.00 0.56 1.11 1.63 2.14 2.64 3.12 3.58 4.03 4.47 4.90 5.31 5.71 6.11 6.49 6.86 7.22 7.57 7.91 8.24 8.57 8.88 9.19 R25 () TC (%/K) -5.94 -5.70 -5.49 -5.28 -5.09 -4.90 -4.73 -4.57 -4.42 -4.27 -4.13 -4.00 -3.88 -3.76 -3.64 -3.54 -3.43 -3.34 -3.24 -3.15 -3.07 -2.98 -2.90 -2.83 -2.76 -2.69 -2.62 -2.55 -2.49 -2.43 -2.37 -2.32 -2.26 -2.21 -2.16 -2.11 2381 640 .....; see note 1 at end of tables 6.339 707.00 528.48 399.54 305.29 235.60 183.54 144.26 114.33 91.34 73.51 59.59 48.63 39.94 33.00 27.43 22.92 19.26 16.26 13.79 11.76 10.06 8.65 7.47 6.47 5.63 4.91 4.30 3.78 3.33 2.95 2.61 2.32 2.07 1.85 1.66 1.49 6.479 1006.93 752.69 569.05 434.80 335.56 261.41 205.46 162.84 130.09 104.70 84.87 69.26 56.88 47.00 39.06 32.64 27.42 23.16 19.65 16.74 14.33 12.32 10.64 9.22 8.02 7.00 6.13 5.38 4.75 4.20 3.72 3.31 2.95 2.64 2.37 2.13 For technical questions contact: nlr.europe@vishay.com 6.689 1456.84 1089.00 823.30 629.07 485.49 378.21 297.26 235.60 188.21 151.48 122.79 100.20 82.29 68.00 56.51 47.23 39.68 33.50 28.42 24.23 20.74 17.83 15.39 13.33 11.60 10.12 8.86 7.79 6.87 6.07 5.38 4.79 4.27 3.82 3.42 3.07 www.vishay.com 77 2381 640 3/4/6.... Vishay BCcomponents Toper (C) 140 145 150 NTC Thermistors, Accuracy Line RT/R25 R DUE TO B-TOLERANCE (%) TC (%/K) 0.0407 0.0368 0.0333 9.49 9.79 10.08 -2.07 -2.02 -1.98 R25 () 2381 640 .....; see note 1 at end of tables 6.339 1.34 1.21 1.10 6.479 1.91 1.73 1.56 6.689 2.77 2.50 2.26 RESISTANCE VALUES AT INTERMEDIATE TEMPERATURES Toper (C) -40 -35 -30 -25 -20 -15 -10 -5 0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 115 120 125 130 135 140 145 150 RT/R25 R DUE TO B-TOLERANCE (%) TC (%/K) 21.9261 16.5224 12.5583 9.62492 7.43618 5.78976 4.54158 3.58813 2.85449 2.28599 1.84245 1.49414 1.21887 1.000 0.82494 0.68413 0.57025 0.47765 0.40198 0.33984 0.28856 0.24606 0.21067 0.18108 0.15623 0.13529 0.11757 0.10251 0.08968 0.07871 0.06928 0.06117 0.05416 0.04809 0.04282 0.03822 0.03420 0.03068 0.02758 2.50 2.26 2.03 1.80 1.59 1.39 1.19 1.00 0.82 0.64 0.47 0.31 0.15 0.00 0.15 0.29 0.43 0.56 0.69 0.82 0.94 1.06 1.17 1.29 1.39 1.50 1.60 1.70 1.80 1.89 1.99 2.08 2.16 2.25 2.33 2.41 2.49 2.57 2.65 -5.75 -5.57 -5.40 -5.24 -5.08 -4.93 -4.78 -4.64 -4.51 -4.38 -4.25 -4.13 -4.01 -3.90 -3.80 -3.69 -3.59 -3.50 -3.40 -3.31 -3.23 -3.15 -3.07 -2.99 -2.91 -2.84 -2.77 -2.71 -2.64 -2.58 -2.52 -2.46 -2.41 -2.35 -2.30 -2.25 -2.20 -2.15 -2.10 www.vishay.com 78 R25 () 2381 640 .....; see note 1 at end of tables 6.101 2192.6 1652.2 1255.8 962.5 743.6 579.0 454.2 358.8 285.4 228.6 184.2 149.4 121.9 100.0 82.5 68.4 57.0 47.8 40.2 34.0 28.9 24.6 21.1 18.1 15.6 13.5 11.8 10.3 8.97 7.87 6.93 6.12 5.42 4.81 4.28 3.82 3.42 3.07 2.76 6.151 2388.9 2478.4 1883.7 1443.7 1115.4 868.5 681.2 538.2 428.2 342.9 276.4 224.1 182.8 150.0 123.7 102.6 85.5 71.6 60.3 51.0 43.3 36.9 31.6 27.2 23.4 20.3 17.6 15.4 13.5 11.8 10.4 9.18 8.12 7.21 6.42 5.73 5.13 4.60 4.14 6.221 4823.7 3634.9 2762.8 2117.5 1636.0 1273.7 999.1 789.4 628.0 502.9 405.3 328.7 268.2 220.0 181.5 150.5 125.5 105.1 88.4 74.8 63.5 54.1 46.3 39.8 34.4 29.8 25.9 22.6 19.7 17.3 15.2 13.5 11.9 10.6 9.42 8.41 7.52 6.75 6.07 For technical questions contact: nlr.europe@vishay.com 6.331 7236 5452 4144 3176 2454 1911 1499 1184 942.0 754.4 608.0 493.1 402.2 330.0 272.2 225.8 188.2 157.6 132.7 112.1 95.23 81.20 69.52 59.76 51.56 44.65 38.80 33.83 29.59 25.97 22.86 20.19 17.87 15.87 14.13 12.61 11.29 10.12 9.10 6.471 10503 7766 5902 4524 3495 2721 1235 1686 1342 1074 865.9 702.2 572.9 470.0 387.7 321.5 268.0 224.5 188.9 159.7 135.6 115.6 99.00 85.11 73.43 63.59 55.26 48.18 42.15 36.99 32.56 28.75 25.46 22.60 20.12 17.96 16.07 14.42 12.96 6.681 14910 11235 8540 6545 5057 3937 3088 2440 1941 1554 1253 1016 828.8 680.0 561.0 465.2 387.8 324.8 273.3 231.1 196.2 167.3 143.3 123.1 106.2 92.00 79.95 69.71 60.98 53.52 47.11 41.60 36.83 32.70 29.11 25.99 23.25 20.86 18.76 Document Number: 29049 Revision: 12-Apr-05 2381 640 3/4/6.... NTC Thermistors, Accuracy Line Vishay BCcomponents RESISTANCE VALUES AT INTERMEDIATE TEMPERATURES Toper (C) -40 -35 -30 -25 -20 -15 -10 -5 0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 115 120 125 130 135 140 145 150 RT/R25 23.3402 17.3347 13.0166 9.8764 7.5682 5.8541 4.5688 3.5961 2.8533 2.2815 1.8376 1.4904 1.2169 1.0000 0.8266 0.6873 0.5746 0.4827 0.4073 0.3452 0.2937 0.2508 0.2149 0.1847 0.1593 0.1377 0.11942 0.10380 0.09045 0.07900 0.06915 0.06066 0.05332 0.04696 0.04143 0.03662 0.03243 0.02877 0.02556 R DUE TO B-TOLERANCE (%) R25 () TC (%/K) 2381 640 .....; see note 1 at end of tables 6.102 23342 17336 13018 9877 7569 5855 4569 3596 2854 2282 1838 1491 1217 1000 826.7 687.4 574.6 482.7 407.4 345.2 293.7 250.8 214.9 184.8 159.3 137.7 119.4 103.8 90.46 79.00 69.16 60.66 53.32 46.96 41.44 36.63 32.43 28.77 25.56 -6.06 -5.84 -5.62 -5.42 -5.23 -5.05 -4.87 -4.71 -4.55 -4.40 -4.26 -4.12 -3.99 -3.87 -3.75 -3.63 -3.53 -3.42 -3.32 -3.23 -3.14 -3.05 -2.97 -2.89 -2.81 -2.73 -2.66 -2.59 -2.53 -2.46 -2.40 -2.34 -2.29 -2.23 -2.18 -2.13 -2.08 -2.03 -1.98 1.65 1.49 1.34 1.19 1.05 0.92 0.79 0.66 0.54 0.43 0.31 0.21 0.10 0.00 0.10 0.19 0.28 0.37 0.46 0.54 0.62 0.70 0.78 0.85 0.92 0.99 1.06 1.13 1.19 1.25 1.31 1.37 1.43 1.49 1.54 1.60 1.65 1.70 1.75 6.152 35013 26004 19526 14816 11353 8782 6854 5395 4280 3422 2457 2236 1826 1500 1240 1031 861.9 724.1 611.0 517.8 440.6 376.2 322.4 277.1 238.9 206.6 179.1 155.7 135.7 118.5 103.7 90.99 79.98 70.44 62.15 54.94 48.65 43.16 38.34 6.202 46684 34672 26035 19754 15138 11709 9138 7193 5707 4563 3675 2981 2434 2000 1653 1375 1149 965.0 814.7 690.5 587.5 501.7 429.8 369.5 318.6 275.5 238.9 207.6 180.9 158.0 138.3 121.3 106.6 93.9 82.9 73.3 64.9 57.5 51.1 RESISTANCE VALUES AT INTERMEDIATE TEMPERATURES Toper (C) -40 -35 -30 -25 -20 -15 -10 RT/R25 33.21 23.99 17.52 12.93 9.636 7.250 5.505 Document Number: 29049 Revision: 12-Apr-05 R DUE TO B-TOLERANCE (%) 2.66 2.41 2.17 1.94 1.71 1.50 1.29 R25 (k) TC (%/K) 6.57 6.36 6.15 5.95 5.76 5.58 5.40 2381 640 .....; see note 1 at end of tables 6.222 73.06 52.78 38.55 28.44 21.20 15.95 12.11 6.272 89.67 64.77 47.31 34.91 26.02 19.58 14.86 6.332 109.6 79.17 57.82 42.67 31.80 23.93 18.16 For technical questions contact: nlr.europe@vishay.com 6.472 156.1 112.8 82.35 60.77 45.30 34.08 25.87 6.682 225.8 163.1 119.1 87.92 65.53 49.30 37.43 6.103 332.1 240.0 175.2 129.3 96.36 72.50 55.05 www.vishay.com 79 2381 640 3/4/6.... Vishay BCcomponents Toper (C) -5 0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 115 120 125 130 135 140 145 150 RT/R25 4.216 3.255 2.534 1.987 1.570 1.249 1.000 0.8059 0.6535 0.5330 0.4372 0.3605 0.2989 0.2490 0.2084 0.1753 0.1481 0.1256 0.1070 0.09154 0.07860 0.06773 0.05858 0.05083 0.04426 0.03866 0.03387 0.02977 0.02624 0.02319 0.02055 0.01826 NTC Thermistors, Accuracy Line R DUE TO B-TOLERANCE (%) 1.08 0.89 0.70 0.52 0.34 0.17 0.00 0.16 0.32 0.47 0.62 0.77 0.91 1.05 1.18 1.31 1.44 1.57 1.69 1.81 1.93 2.04 2.15 2.26 2.37 2.47 2.57 2.67 2.77 2.86 2.96 3.05 R25 (k) TC (%/K) 5.24 5.08 4.92 4.78 4.64 4.50 4.37 4.25 4.13 4.02 3.91 3.80 3.70 3.60 3.51 3.42 3.33 3.25 3.16 3.09 3.01 2.94 2.87 2.80 2.73 2.67 2.61 2.55 2.49 2.43 2.38 2.33 2381 640 .....; see note 1 at end of tables 6.222 9.275 7.162 5.575 4.372 3.454 2.747 2.200 1.773 1.438 1.173 0.9618 0.7932 0.6575 0.5478 0.4586 0.3857 0.3258 0.2764 0.2355 0.2014 0.1729 0.1490 0.1289 0.1118 0.0974 0.0851 0.0745 0.0655 0.0577 0.0510 0.0452 0.0402 6.272 11.38 8.790 6.842 5.366 4.239 3.372 2.700 2.176 1.764 1.439 1.180 0.973 0.807 0.672 0.562 0.473 0.399 0.339 0.289 0.247 0.212 0.182 0.158 0.137 0.1195 0.1044 0.0915 0.0804 0.0709 0.0626 0.0555 0.0493 6.332 13.91 10.74 8.362 6.558 5.181 4.121 3.300 2.660 2.156 1.759 1.443 1.190 0.9863 0.8217 0.6879 0.5785 0.4887 0.4146 0.3532 0.3021 0.2594 0.2235 0.1933 0.1677 0.1461 0.1276 0.1118 0.0982 0.0866 0.0765 0.0678 0.0603 6.472 19.81 15.30 11.91 9.340 7.378 5.869 4.700 3.788 3.072 2.505 2.055 1.694 1.405 1.170 0.9797 0.8239 0.6960 0.5905 0.5031 0.4303 0.3694 0.3183 0.2753 0.2389 0.2080 0.1817 0.1592 0.1399 0.1233 0.1090 0.0966 0.0858 6.682 28.67 22.14 17.23 13.51 10.67 8.492 6.800 5.480 4.444 3.624 2.972 2.451 2.032 1.693 1.417 1.192 1.007 0.8544 0.7278 0.6225 0.5345 0.4607 0.3983 0.3457 0.3010 0.2629 0.2303 0.2024 0.1784 0.1577 0.1398 0.1242 6.103 42.16 32.56 25.34 19.87 15.70 12.49 10.00 8.059 6.535 5.330 4.372 3.606 2.989 2.490 2.084 1.753 1.481 1.256 1.070 0.9154 0.7860 0.6773 0.5858 0.5083 0.4426 0.3866 0.3387 0.2977 0.2624 0.2319 0.2055 0.1826 RESISTANCE VALUES AT INTERMEDIATE TEMPERATURES Toper (C) -40 -35 -30 -25 -20 -15 -10 -5 0 5 10 15 20 25 30 www.vishay.com 80 RT/R25 25.78 19.13 14.32 10.82 8.245 6.335 4.907 3.830 3.011 2.384 1.900 1.525 1.231 1.000 0.8170 R DUE TO B-TOLERANCE (%) 6.81 6.16 5.53 4.93 4.35 3.80 3.26 2.74 2.24 1.76 1.30 0.85 0.42 0.00 0.41 R25 (k) TC (%/K) 6.09 5.89 5.70 5.52 5.35 5.19 5.03 4.88 4.73 4.60 4.46 4.34 4.21 4.10 3.98 2381 640 .....; see note 1 at end of tables 6.123 309.4 229.5 171.8 129.8 98.93 76.02 58.88 45.95 36.13 28.60 22.80 18.30 14.77 12.00 9.804 For technical questions contact: nlr.europe@vishay.com 6.153 386.8 286.9 214.8 162.3 123.7 95.03 73.60 57.44 45.16 35.76 28.50 22.87 18.47 15.00 12.26 6.223 567.2 420.8 315.0 238.0 181.4 139.4 107.9 84.25 66.24 52.45 41.81 33.55 27.09 22.00 17.97 Document Number: 29049 Revision: 12-Apr-05 2381 640 3/4/6.... NTC Thermistors, Accuracy Line Toper (C) 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 115 120 125 RT/R25 0.6712 0.5543 0.4602 0.3839 0.3219 0.2710 0.2293 0.1947 0.1661 0.1422 0.1223 0.1055 0.09135 0.07937 0.06919 0.06050 0.05307 0.04670 0.04121 R DUE TO B-TOLERANCE (%) 0.80 1.19 1.57 1.94 2.30 2.65 2.99 3.33 3.66 3.98 4.29 4.60 4.90 5.19 5.48 5.76 6.04 6.31 6.57 R25 (k) TC (%/K) 3.88 3.77 3.67 3.57 3.48 3.39 3.30 3.22 3.14 3.06 2.99 2.92 2.85 2.78 2.71 2.65 2.59 2.53 2.47 Vishay BCcomponents 2381 640 .....; see note 1 at end of tables 6.123 8.054 6.652 5.522 4.607 3.862 3.252 2.751 2.337 1.993 1.707 1.467 1.266 1.096 0.9524 0.8302 0.7260 0.6369 0.5604 0.4945 6.153 10.07 8.315 6.903 5.759 4.828 4.067 3.439 2.921 2.492 2.134 1.834 1.583 1.370 1.190 1.038 0.9075 0.7961 0.7005 0.6181 6.223 14.77 12.20 10.12 8.447 7.081 5.963 5.044 4.284 3.654 3.129 2.690 2.321 2.010 1.746 1.522 1.331 1.168 1.027 0.9065 RESISTANCE VALUES AT INTERMEDIATE TEMPERATURES Toper (C) -40 -35 -30 -25 -20 -15 -10 -5 0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 RT/R25 R DUE TO B-TOLERANCE (%) TC (%/K) 33.81 24.50 17.93 13.25 9.875 7.425 5.630 4.304 3.315 2.573 2.011 1.583 1.254 1.000 0.8024 0.6474 0.5255 0.4288 0.3518 0.2901 0.2403 0.2001 0.1674 0.1406 0.1186 0.1004 0.08542 0.07292 0.06248 5.55 5.02 4.52 4.03 3.56 3.10 2.67 2.24 1.84 1.44 1.07 0.70 0.34 0.00 0.33 0.66 0.98 1.28 1.59 1.88 2.17 2.45 2.72 2.99 3.25 3.51 3.76 4.00 4.24 6.55 6.34 6.15 5.96 5.78 5.61 5.45 5.29 5.14 4.99 4.85 4.72 4.59 4.46 4.34 4.23 4.12 4.01 3.91 3.81 3.71 3.62 3.53 3.44 3.36 3.28 3.20 3.13 3.06 Document Number: 29049 Revision: 12-Apr-05 R25 (k) 2381 640 .....; see note 1 at end of tables 6.333 1116 808.6 591.7 437.1 325.9 245.0 185.8 142.0 109.4 84.91 66.37 52.24 41.39 33.00 26.47 21.37 17.34 14.15 11.61 9.572 7.931 6.603 5.522 4.639 3.913 3.315 2.819 2.406 2.062 For technical questions contact: nlr.europe@vishay.com 6.473 1589 1151 842.8 622.6 464.1 349.0 264.6 202.3 155.8 120.9 94.53 74.40 58.95 47.00 37.71 30.43 24.70 20.15 16.53 13.63 11.30 9.404 7.865 6.607 5.573 4.721 4.015 3.427 2.936 www.vishay.com 81 2381 640 3/4/6.... Vishay BCcomponents Toper (C) 105 110 115 120 125 130 135 140 145 150 RT/R25 0.05372 0.04635 0.04013 0.03485 0.03037 0.02654 0.02326 0.02044 0.01802 0.01592 NTC Thermistors, Accuracy Line R DUE TO B-TOLERANCE (%) 4.47 4.70 4.93 5.15 5.36 5.57 5.78 5.98 6.18 6.37 TC (%/K) 2.98 2.92 2.85 2.79 2.73 2.67 2.61 2.55 2.50 2.44 R25 (k) 2381 640 .....; see note 1 at end of tables 6.333 1.773 1.530 1.342 1.150 1.002 0.8757 0.7675 0.6746 0.5945 0.5254 6.473 2.525 2.179 1.886 1.638 1.427 1.247 1.093 0.9608 0.8468 0.7483 RESISTANCE VALUES AT INTERMEDIATE TEMPERATURES Toper (C) -40 -35 -30 -25 -20 -15 -10 -5 0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 115 120 125 www.vishay.com 82 RT/R25 36.66 26.38 19.17 14.06 10.41 7.779 5.861 4.453 3.409 2.631 2.044 1.600 1.261 1.000 0.7981 0.6408 0.5175 0.4202 0.3431 0.2816 0.2322 0.1925 0.1602 0.1340 0.1126 0.09496 0.08042 0.06837 0.05835 0.04998 0.04296 0.03705 0.03206 0.02783 R DUE TO B-TOLERANCE (%) 5.69 5.15 4.63 4.13 3.65 3.18 2.73 2.30 1.88 1.48 1.09 0.72 0.35 0.00 0.34 0.67 1.00 1.32 1.63 1.93 2.22 2.51 2.79 3.06 3.33 3.59 3.85 4.10 4.35 4.59 4.82 5.05 5.28 5.50 TC (%/K) 6.70 6.49 6.29 6.10 5.92 5.74 5.57 5.41 5.26 5.11 4.97 4.83 4.70 4.57 4.45 4.35 4.22 4.11 4.00 3.90 3.80 3.71 3.62 3.53 3.45 3.36 3.28 3.21 3.13 3.06 2.99 2.92 2.86 2.80 R25 (k) 2381 640 .....; see note 1 at end of tables 6.683 2493 1794 1303 956.2 708.0 528.9 398.5 302.8 231.8 178.9 139.0 108.8 85.74 68.00 54.27 43.57 35.19 28.57 23.33 19.15 15.79 13.09 10.90 9.114 7.655 6.457 5.469 4.649 3.968 3.399 2.921 2.519 2.180 1.892 For technical questions contact: nlr.europe@vishay.com 6.104 3666 2638 1917 1406 1041 777.9 586.1 445.3 340.9 263.1 204.4 160.0 126.1 100.0 79.81 64.08 51.74 42.02 34.31 28.16 23.22 19.25 16.03 13.40 11.26 9.496 8.042 6.837 5.835 4.998 4.296 3.705 3.206 2.783 Document Number: 29049 Revision: 12-Apr-05 2381 640 3/4/6.... NTC Thermistors, Accuracy Line Vishay BCcomponents RESISTANCE VALUES AT INTERMEDIATE TEMPERATURES Toper (C) -40 -35 -30 -25 -20 -15 -10 -5 0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 115 120 125 RT/R25 41.02 29.29 21.12 15.37 11.28 8.358 6.242 4.700 3.567 2.727 2.101 1.629 1.272 1.000 0.7910 0.6295 0.5039 0.4056 0.3283 0.2672 0.2185 0.1796 0.1483 0.1231 0.1025 0.08582 0.07213 0.06086 0.05155 0.04383 0.03740 0.03203 0.02752 0.02372 R DUE TO B-TOLERANCE (%) 10.10 9.12 8.18 7.28 6.42 5.59 4.80 4.03 3.30 2.59 1.90 1.25 0.61 0.00 0.59 1.18 1.74 2.30 2.84 3.37 3.89 4.40 4.90 5.39 5.86 6.33 6.79 7.24 7.68 8.11 8.53 8.94 9.35 9.75 TC (%/K) 6.89 6.68 6.48 6.29 6.11 5.93 5.76 5.60 5.44 5.29 5.15 5.01 4.88 4.75 4.62 4.51 4.39 4.28 4.17 4.07 3.97 3.87 3.78 3.69 3.60 3.52 3.44 3.36 3.28 3.21 3.14 3.07 3.00 2.94 R25 (k) 2381 640 .....; see note 1 at end of tables 6.154 6153 4394 3168 2305 1693 1254 936.4 705.0 535.0 409.1 315.1 244.4 190.8 150.0 118.6 94.42 75.58 60.85 49.25 40.08 32.78 26.94 22.25 18.46 15.38 12.87 10.82 9.129 7.732 6.574 5.610 4.804 4.128 3.559 6.224 9024 6444 4646 3381 2483 1839 1373 1034 784.7 600.0 462.1 358.4 279.9 220.0 174.0 138.5 110.9 89.24 72.24 58.78 48.08 39.51 32.63 27.07 22.56 18.88 15.87 13.39 11.34 9.642 8.228 7.046 6.054 5.219 RESISTANCE VALUES AT INTERMEDIATE TEMPERATURES Toper (C) -40 -35 -30 -25 -20 -15 -10 -5 0 5 10 15 20 RT/R25 48.62 34.19 24.28 17.42 12.61 9.211 6.788 5.045 3.781 2.855 2.173 1.666 1.286 Document Number: 29049 Revision: 12-Apr-05 R DUE TO B-TOLERANCE (%) 6.22 5.63 5.06 4.51 3.98 3.47 2.98 2.51 2.06 1.62 1.19 0.78 0.38 TC (%/K) 7.13 6.91 6.71 6.52 6.33 6.15 5.98 5.82 5.66 5.50 5.36 5.22 5.08 R25 (k) 2381 640 .....; see note 1 at end of tables 6.334 16044 11282 8013 5747 4161 3040 2240 1665 1248 942.3 717.1 549.8 424.5 For technical questions contact: nlr.europe@vishay.com 6.474 22850 16068 11413 8185 5926 4329 3190 2371 1776 1342 1021 783.0 604.6 www.vishay.com 83 2381 640 3/4/6.... Vishay BCcomponents Toper (C) 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 115 120 125 NTC Thermistors, Accuracy Line RT/R25 R DUE TO B-TOLERANCE (%) TC (%/K) 1.000 0.7825 0.6163 0.4883 0.3892 0.3120 0.2515 0.2038 0.1660 0.1359 0.1118 0.09240 0.07670 0.06395 0.05354 0.04501 0.03798 0.03218 0.02736 0.02335 0.01999 0.00 0.37 0.74 1.09 1.44 1.77 2.10 2.43 2.74 3.05 3.35 3.64 3.93 4.21 4.48 4.75 5.01 5.27 5.52 5.77 6.01 4.95 4.82 4.70 4.59 4.47 4.36 4.26 4.15 4.06 3.96 3.87 3.78 3.69 3.61 3.53 3.45 3.37 3.30 3.23 3.16 3.09 R25 (k) 2381 640 .....; see note 1 at end of tables 6.334 330.0 258.2 203.4 161.1 128.4 103.0 83.00 67.26 54.79 44.86 36.90 30.49 25.31 21.10 17.67 14.85 12.53 10.70 9.029 7.704 6.597 6.474 470.0 367.8 289.6 229.5 182.9 146.7 118.2 95.80 78.03 63.88 52.55 43.43 36.05 30.06 25.16 21.15 17.85 15.12 12.86 10.97 9.396 RESISTANCE VALUES AT INTERMEDIATE TEMPERATURES WITH R25 AT 68 K AND 100 K Tamb (C) -40 -35 -30 -25 -20 -15 -10 -5 0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 www.vishay.com 84 RT/R25 R DUE TO B-TOLERANCE (%) TC (%/K) 36.66 26.38 19.17 14.06 10.41 7.779 5.861 4.453 3.409 2.631 2.044 1.600 1.261 1.000 0.7981 0.6408 0.5175 0.4202 0.3431 0.2816 0.2322 0.1925 0.1602 0.1340 0.1126 0.09496 5.69 5.15 4.63 4.13 3.65 3.18 2.73 2.30 1.88 1.48 1.09 0.72 0.35 0.00 0.34 0.67 1.00 1.32 1.63 1.93 2.22 2.51 2.79 3.06 3.33 3.59 6.70 6.49 6.29 6.10 5.92 5.74 5.57 5.41 5.26 5.11 4.97 4.83 4.70 4.57 4.45 4.35 4.22 4.11 4.00 3.90 3.80 3.71 3.62 3.53 3.45 3.36 R25 (k) 2381 640 .....; see note 1 at end of tables 6.683 2493 1794 1303 956.2 708.0 528.9 398.5 302.8 231.8 178.9 139.0 108.8 85.74 68.00 54.27 43.57 35.19 28.57 23.33 19.15 15.79 13.09 10.90 9.114 7.655 6.457 For technical questions contact: nlr.europe@vishay.com 6.104 3666 2638 1917 1406 1041 777.9 586.1 445.3 340.9 263.1 204.4 160.0 126.1 100.0 79.81 64.08 51.74 42.02 34.31 28.16 23.22 19.25 16.03 13.40 11.26 9.496 Document Number: 29049 Revision: 12-Apr-05 2381 640 3/4/6.... NTC Thermistors, Accuracy Line Tamb (C) 90 95 100 105 110 115 120 125 RT/R25 R DUE TO B-TOLERANCE (%) TC (%/K) 0.08042 0.06837 0.05835 0.04998 0.04296 0.03705 0.03206 0.02783 3.85 4.10 4.35 4.59 4.82 5.05 5.28 5.50 3.28 3.21 3.13 3.06 2.99 2.92 2.86 2.80 Vishay BCcomponents R25 (k) 2381 640 .....; see note 1 at end of tables 6.683 5.469 4.649 3.968 3.399 2.921 2.519 2.180 1.892 6.104 8.042 6.837 5.835 4.998 4.296 3.705 3.206 2.783 RESISTANCE VALUES AT INTERMEDIATE TEMPERATURES WITH R25 AT 470 K Tamb (C) -40 -35 -30 -25 -20 -15 -10 -5 0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 115 120 125 R25 (k) RT/R25 R DUE TO B-TOLERANCE (%) TC (%/K) 2381 640 .....; see note 1 at end of tables 48.62 34.19 24.28 17.42 12.61 9.211 6.788 5.045 3.781 2.855 2.173 1.666 1.286 1.000 0.7825 0.6163 0.4883 0.3892 0.3120 0.2515 0.2038 0.1660 0.1359 0.1118 0.09240 0.07670 0.06395 0.05354 0.04501 0.03798 0.03218 0.02736 0.02335 0.01999 6.22 5.63 5.06 4.51 3.98 3.47 2.98 2.51 2.06 1.62 1.19 0.78 0.38 0.00 0.37 0.74 1.09 1.44 1.77 2.10 2.43 2.74 3.05 3.35 3.64 3.93 4.21 4.48 4.75 5.01 5.27 5.52 5.77 6.01 7.13 6.91 6.71 6.52 6.33 6.15 5.98 5.82 5.66 5.50 5.36 5.22 5.08 4.95 4.82 4.70 4.59 4.47 4.36 4.26 4.15 4.06 3.96 3.87 3.78 3.69 3.61 3.53 3.45 3.37 3.30 3.23 3.16 3.09 5.474 22850 16068 11413 8185 5926 4329 3190 2371 1776 1342 1021 783.0 604.6 470.0 367.8 289.6 229.5 182.9 146.7 118.2 95.80 78.03 63.88 52.55 43.43 36.05 30.06 25.16 21.15 17.85 15.12 12.86 10.97 9.396 Note to Resistance Values At Intermediate Temperature Tables 1. Replace dot in last 5 digits of catalog number by a number according to the following details and depending on tolerance on required R25-value: 4 for a tolerance of 2%; 6 for a tolerance of 3%; 3 for a tolerance of 5%; 2 for a tolerance of 10%. Document Number: 29049 Revision: 12-Apr-05 For technical questions contact: nlr.europe@vishay.com www.vishay.com 85 2381 640 3/4/6.... Vishay BCcomponents NTC Thermistors, Accuracy Line PACKAGING TAPE SPECIFICATIONS Thermistors on tape. P T p D p h Od H W2 W1 W h H1 L W0 A D0 F t P0 P1 direction of unreeling detail A MSA208 1E pitch 2322 640 4.... DIMENSIONS OF TAPE IN ACCORDANCE WITH "IEC 60286-2" SYMBOL DIMENSIONS (mm) PARAMETER diameter(2) VALUE TOLERANCE 3.3 +0.5 D body T maximum total thickness 3 - d lead diameter 0.6 0.06 P pitch between thermistors 12.7 1 P0 feed-hole pitch (cumulative pitch error 0.2 mm/20 products) 12.7 0.3 P1 feed-hole centre to lead centre 5.08 0.7 p component alignment 0 1.3 F lead-to-lead distance 2.54 0.3 h component alignment 0 2 W tape width 18.0 +1/-0.5 W0 hold-down tape width 12.5 - W1 feed-hole position 9.0 0.5 W2 hold-down tape position 3 - H component to tape centre 22(1) 1 H1 component height 32 - L length of snipped lead 11 - D0 feed-hole diameter 4.0 0.2 t total tape thickness with cardboard tape 0.5 0.1 mm 0.65 0.2 - 1% inspection level: S3 mechanical Note 1. Taped products with H= 451, are available on request. 2. D 5 max for 6404.338 to 221. www.vishay.com 86 For technical questions contact: nlr.europe@vishay.com Document Number: 29049 Revision: 12-Apr-05 2381 640 3/4/6.... Vishay BCcomponents NTC Thermistors, Accuracy Line Thermistors on tape. P D T p p h h 10 max Od H H0 W2 W1 W L W0 A D0 P0 F P1 direction of unreeling t 2E pitch 2322 640 3.... detail A MSA209 DIMENSIONS OF TAPE IN ACCORDANCE WITH "IEC 60286-2" DIMENSIONS (mm) SYMBOL PARAMETER VALUE TOLERANCE D body diameter(1) 3.3 +0.5 T maximum total thickness(2) 3.2 - d lead diameter 0.6 0.06 P pitch between thermistors 12.7 1 P0 feed-hole pitch (cumulative pitch error 0.2 mm/20 products) 12.7 0.3 P1 feed-hole centre to lead centre 3.85 0.7 p component alignment 0 1.3 F lead-to-lead distance 5.08 0.3 h component alignment 0 2 W tape width 18.0 +1/-0.5 W0 hold-down tape width 12.5 - W1 feed-hole position 9.0 +0.75/-0.5 W2 hold-down tape position 3 - H component to tape centre 20 +2 H0 lead wire clinch height 16 0.5 L length of snipped lead 11 - D0 feed-hole diameter 4.0 0.3 t total tape thickness with cardboard tape 0.5 0.1 mm 0.7 0.2 - 1% inspection level: S3 mechanical Note 1. D 5 max for 640 3. 338 to 640 4. 221. 2. T 4 max for 640 3. 338 to 640 4. 221. Document Number: 29049 Revision: 12-Apr-05 For technical questions contact: nlr.europe@vishay.com www.vishay.com 87 2381 640 3/4/6.... Vishay BCcomponents NTC Thermistors, Accuracy Line REEL SPECIFICATIONS CODE NUMBERS AND RELEVANT PACKAGING QUANTITIES Dimensions of the reel. BULK TAPE AND REEL(1) 1e pitch TAPE AND REEL(1) 2e pitch 2381 640 6.... 2381 640 4.... 2381 640 3.... 500 1500 per reel, 2 reels per box 1500 per reel, 2 reels per box PARAMETER Quantity 3 Note 1. The maximum number of empty places per reel shall not exceed 0.1% of the total number of components per reel. With no consecutive positions empty. 18 CHARACTERISTICS OF TAPED PRODUCTS 30 +1 -0 77 85.6 92 356 max. Minimum pull-out force of the component: 5 N. Minimum peel-off force of adhesive tape: 6N. Minimum tearing force tape: 15 N. Minimum pull-off force of tape-reel: 5 N. 22.5 STORAGE CONDITIONS Storage temperature range: -25 to +40 C. Maximum relative humidity: 80%. JW113 42 1 56 max TESTS AND REQUIREMENTS Essentially all tests are carried out in accordance with "IEC publication 60068-2; Environmental testing", except where indicated. STABILITY TESTS CECC 32 100 CLAUSE IEC 60068-2 TEST METHOD D3; 4.20.1 D1; 4.19 C2; 4.14 1 539 2 3 14 TEST PROCEDURE REQUIREMENTS endurance endurance endurance dry heat, damp heat rapid change of temperature 25 C; 1000 hours -40 C; 1000 hours 500 mW; 55 C; 1000 hours 125 C; 1000 hours 56 days at 40 C; 90 to 95% RH -40 C to +125 C; 50 cycles R/R < 1% R/R < 1% R/R < 3% (note 1) R/R < 3% R/R < 3% R/R < 2% Other applicable tests 21 58 27 29 45 6 2 robustness of leads: tensile strength bending soldering: solderability resistance to heat impact shock resistance to solvent vibration inflammability R/R 1% loading force 10 N loading force 5 N R/R 1% (note 2) 240 C max.; duration 4 s max. 265 C max.; duration 5 s max. free fall; 1 m 490 m/s; half sinewave ambient temp for 5 min; 1.5 mm peak to peak: 10 to 58 Hz 1980, needle flame test R/R 1% R/R 1% no traces of lacquer on no visible damage non-flammable Notes 1. For R25 100 k the drift requirement is R/R < 5%. 2. For R25 from 2.2 k to 10 k, requirement is 2% max. www.vishay.com 88 For technical questions contact: nlr.europe@vishay.com Document Number: 29049 Revision: 12-Apr-05 Legal Disclaimer Notice Vishay Notice Specifications of the products displayed herein are subject to change without notice. Vishay Intertechnology, Inc., or anyone on its behalf, assumes no responsibility or liability for any errors or inaccuracies. Information contained herein is intended to provide a product description only. No license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted by this document. Except as provided in Vishay's terms and conditions of sale for such products, Vishay assumes no liability whatsoever, and disclaims any express or implied warranty, relating to sale and/or use of Vishay products including liability or warranties relating to fitness for a particular purpose, merchantability, or infringement of any patent, copyright, or other intellectual property right. The products shown herein are not designed for use in medical, life-saving, or life-sustaining applications. Customers using or selling these products for use in such applications do so at their own risk and agree to fully indemnify Vishay for any damages resulting from such improper use or sale. Document Number: 91000 Revision: 08-Apr-05 www.vishay.com 1