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502F NTC热敏电阻温度-阻值特性表


Sinloon

Approval
Manufacturer:
Mayloon Electronic Co., Ltd.,
Flat E,17/F Houston Ind., Bldg., 32-40 Wang Lung St., Tsuen Wan, HK Tel: 852-2408 9788 Fax:852-2406 9983

Customer:

Approved By:

Checked By:

Prepared By :

Approved Examined By: By:

Tested By :

Company's Stamp

Company's Stamp

Approval Product
Mayloon

No. : : NTC THERMISTOR SENSORS

Part No. : MLHT 502F- 3970 Customer's Part No. : Specifications : R25 5,000 ± 1% °K ± 1 % B25-85 3970 : 2007/05/10

Date

NTC SENSORS MLHT502F3970

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1) SCOPE This specifications define ratings, dimension, insulation, climatic sequence and mechanical characteristics for (Lead-free) MLHT type thermistor. 2) PART NO. : 3) RATING MLHT502F-3970

3-1) Rated zero-power resistance R25 : 5 k ±1 % (at 25℃) 3-2) B value. B25/85 : 3,970K ±1 % *The B value is calculated using the zero-power resistance values measured at 25℃ and 85℃. 3-3) Dissipation factor. :Approx. 2 mW/℃(in air) 3-4) Thermal time constant. Sec (in air) :Approx. ≤12 3-5) Maximum power rating. 3-6) Category temperature range 3-7) Lead content 3-8) Cadmium
4) DIMENSIONS UNIT: mm

: 10 mW : -30 ~ 125 : RoHs Compliant. : RoHs Compliant.

(at 25℃) ℃

Spec.No.: STANDARD Note Date: Approved Checked

REVISION Drawn A B C

NTC SENSORS MLHT502F3970

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5) Insulation

5-1) Insulation resistance Insulation resistance of the test samples shall be over 100M when it is measured at DC 500V between coated area and lead wires.
6) Climatic test

6-1) Dry Heat After the test samples were exposed in air at 110 ℃ for 1,000 hours, the change ratio of the rated zero-power resistance shall be within ±1% of the initial value. 6-2) Damp heat After the test samples were exposed in the humidity of 95% at 40℃ for 1,000 hours, the change ratio of the rated zero-power resistance shall be within ±1% of the initial value. 6-3) Cold After the test samples were exposed in air at -30℃ for 1,000 hours, the change ratio of the rated zero-power resistance shall be within ±1% of the initial value. 6-4) Humidity load After DC 1mA current was applied to the test samples in the temperature of 40℃ and the humidity of 95% for 1,000 hours, the change ratio of the rated zero-power resistance shall be within ±1% of the initial value. 6-5) Change of temperature One cycle of the change of temperature shall be carried our in the order of the following conditions. .Room ambient temperature.( Initial value) .At -30℃, for 30 minutes. .Room ambient temperature, for 3 minutes. .At + 90℃, for 30 minutes. .Room ambient temperature, for 3 minutes. After 100 cycles of change of temperature, the change ratio of the rated zero-power resistance shall be within ±1% of the initial value.

NTC SENSORS MLHT502F3970

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6-6) High temperature load After DC 1mA current was applied to the test samples in the temperature of 110℃ for 1,000 hours, the change ratio of the rated zero-power resistance shall be within ±1% of the initial value.
7) Mechanical characteristics

7-1) Robustness of terminations Ua: Tensile After 2N loading weight for 3 seconds was applied to the wire terminations, there shall be no visible damage. 7-2) Free fall After one time natural fall to a maple board from 1m high, there shall be no visible damage. 7-3) Resistance to soldering heat After lead wire of the test samples were dipped on time within 8.5 mm from end of lead wire in solder bath at 260℃ ±10% for 10 ±0.5 seconds, the change ratio of the rated zero-power resistance shall be within ±1% of the initial value.
8) R-T characteristics
PART NO.:

MLHT502F-3970
Resistance
MIN. CENTER 172637 161316 150817 141074 132029 123626 115816 108554 101796 95505

R25 : B25/85 : Resist. Tolerance (%) MIN. -4.44 -4.38 -4.32 -4.25 -4.19 -4.13 -4.06 -4.00 -3.94 -3.88 MAX. 4.64 4.57 4.50 4.43 4.36 4.29 4.22 4.16 4.09 4.02

5 K ±1% 3,970K ±1% Temp. Tolerance (℃) MIN. -0.68 -0.68 -0.67 -0.67 -0.66 -0.66 -0.65 -0.64 -0.64 -0.63 MAX. 0.65 0.65 0.64 0.64 0.63 0.63 0.62 0.62 0.62 0.61

Temperature (℃)

()
MAX. 180650 168689 157603 147324 137787 128933 120709 113066 105959 99348

Temp. Coef. (%/℃) -6.81 -6.76 -6.70 -6.65 -6.60 -6.55 -6.50 -6.45 -6.40 -6.36

-40 -39 -38 -37 -36 -35 -34 -33 -32 -31

164963 154250 144308 135076 126499 118526 111111 104211 97786 91802

NTC SENSORS MLHT502F3970

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-30 -29 -28 -27 -26 -25 -24 -23 -22 -21 -20 -19 -18 -17 -16 -15 -14 -13 -12 -11 -10 -9 -8 -7 -6 -5 -4 -3 -2 -1 0 1 2 3 4 5 6 7 8

86224 81023 76171 71642 67412 63461 59767 56312 53080 50055 47222 44567 42079 39746 37558 35504 33575 31763 30061 28460 26955 25539 24206 22951 21769 20655 19605 18614 17680 16798 15966 15180 14437 13735 13072 12444 11851 11289 10757

89646 84185 79094 74345 69913 65775 61909 58296 54917 51756 48798 46028 43433 41002 38722 36583 34576 32692 30923 29260 27698 26228 24846 23545 22320 21167 20080 19056 18090 17179 16319 15508 14742 14018 13334 12688 12076 11498 10951

93194 87462 82122 77143 72500 68167 64121 60343 56811 53510 50422 47532 44826 42292 39918 37692 35604 33645 31806 30080 28458 26933 25500 24152 22883 21689 20565 19505 18507 17566 16679 15841 15051 14305 13600 12934 12305 11710 11148

-6.31 -6.26 -6.21 -6.17 -6.12 -6.08 -6.04 -5.99 -5.95 -5.91 -5.86 -5.82 -5.78 -5.74 -5.70 -5.66 -5.62 -5.58 -5.55 -5.51 -5.47 -5.43 -5.40 -5.36 -5.32 -5.29 -5.25 -5.22 -5.18 -5.15 -5.12 -5.08 -5.05 -5.02 -4.99 -4.95 -4.92 -4.89 -4.86

-3.82 -3.76 -3.70 -3.64 -3.58 -3.52 -3.46 -3.40 -3.34 -3.29 -3.23 -3.17 -3.12 -3.06 -3.01 -2.95 -2.90 -2.84 -2.79 -2.73 -2.68 -2.63 -2.57 -2.52 -2.47 -2.42 -2.37 -2.32 -2.26 -2.21 -2.16 -2.11 -2.06 -2.02 -1.97 -1.92 -1.87 -1.82 -1.77

3.96 3.89 3.83 3.76 3.70 3.64 3.57 3.51 3.45 3.39 3.33 3.27 3.21 3.15 3.09 3.03 2.97 2.91 2.86 2.80 2.74 2.69 2.63 2.58 2.52 2.47 2.41 2.36 2.31 2.25 2.20 2.15 2.10 2.05 2.00 1.94 1.89 1.84 1.79

-0.63 -0.62 -0.62 -0.61 -0.60 -0.60 -0.59 -0.59 -0.58 -0.57 -0.57 -0.56 -0.55 -0.55 -0.54 -0.54 -0.53 -0.52 -0.52 -0.51 -0.50 -0.49 -0.49 -0.48 -0.47 -0.47 -0.46 -0.45 -0.45 -0.44 -0.43 -0.42 -0.42 -0.41 -0.40 -0.39 -0.38 -0.38 -0.37

0.61 0.60 0.59 0.59 0.58 0.58 0.57 0.57 0.56 0.56 0.55 0.54 0.54 0.53 0.53 0.52 0.52 0.51 0.50 0.50 0.49 0.48 0.48 0.47 0.46 0.46 0.45 0.44 0.44 0.43 0.42 0.42 0.41 0.40 0.39 0.39 0.38 0.37 0.36

NTC SENSORS MLHT502F3970

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9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47

10253 9776 9324 8895 8489 8103 7738 7390 7061 6748 6450 6168 5899 5644 5401 5170 4950 4737 4533 4340 4156 3981 3814 3655 3504 3360 3222 3091 2966 2846 2732 2624 2520 2420 2326 2235 2148 2066 1987

10433 9943 9479 9038 8621 8226 7851 7495 7158 6837 6533 6244 5969 5708 5460 5224 5000 4786 4583 4390 4206 4030 3863 3703 3552 3407 3269 3137 3011 2891 2776 2667 2562 2462 2367 2275 2188 2105 2025

10615 10112 9635 9183 8755 8350 7965 7601 7255 6927 6616 6320 6040 5773 5520 5279 5050 4836 4633 4439 4255 4079 3912 3752 3599 3454 3315 3183 3057 2936 2821 2710 2605 2505 2408 2316 2228 2144 2064

-4.83 -4.80 -4.77 -4.74 -4.71 -4.68 -4.65 -4.62 -4.59 -4.57 -4.54 -4.51 -4.48 -4.46 -4.43 -4.40 -4.38 -4.35 -4.33 -4.30 -4.27 -4.25 -4.23 -4.20 -4.18 -4.15 -4.13 -4.10 -4.08 -4.06 -4.03 -4.01 -3.99 -3.97 -3.94 -3.92 -3.90 -3.88 -3.86

-1.73 -1.68 -1.63 -1.58 -1.54 -1.49 -1.45 -1.40 -1.35 -1.31 -1.26 -1.22 -1.18 -1.13 -1.09 -1.04 -1.00 -1.04 -1.09 -1.13 -1.17 -1.21 -1.26 -1.30 -1.34 -1.38 -1.42 -1.46 -1.50 -1.54 -1.58 -1.62 -1.66 -1.70 -1.74 -1.78 -1.81 -1.85 -1.89

1.75 1.70 1.65 1.60 1.55 1.50 1.46 1.41 1.36 1.32 1.27 1.22 1.18 1.13 1.09 1.04 1.00 1.04 1.09 1.13 1.17 1.22 1.26 1.30 1.35 1.39 1.43 1.47 1.51 1.55 1.60 1.64 1.68 1.72 1.76 1.80 1.84 1.88 1.92

-0.36 -0.35 -0.35 -0.34 -0.33 -0.32 -0.31 -0.30 -0.30 -0.29 -0.28 -0.27 -0.26 -0.25 -0.25 -0.24 -0.23 -0.24 -0.25 -0.26 -0.27 -0.29 -0.30 -0.31 -0.32 -0.33 -0.35 -0.36 -0.37 -0.38 -0.40 -0.41 -0.42 -0.43 -0.45 -0.46 -0.47 -0.48 -0.50

0.36 0.35 0.34 0.33 0.33 0.32 0.31 0.30 0.29 0.29 0.28 0.27 0.26 0.25 0.25 0.24 0.23 0.24 0.25 0.26 0.27 0.29 0.30 0.31 0.32 0.33 0.34 0.36 0.37 0.38 0.39 0.40 0.42 0.43 0.44 0.45 0.47 0.48 0.49

NTC SENSORS MLHT502F3970

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48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86

1911 1838 1769 1703 1639 1578 1520 1464 1411 1360 1311 1263 1218 1175 1133 1094 1055 1019 983 949 917 885 855 827 799 772 746 722 698 675 653 632 611 592 573 555 537 520 504

1948 1875 1805 1738 1674 1613 1554 1497 1443 1391 1341 1294 1248 1204 1162 1121 1082 1045 1009 975 942 910 879 850 822 794 768 743 719 695 673 651 631 610 591 573 555 537 521

1987 1913 1842 1774 1709 1647 1588 1530 1476 1423 1373 1324 1278 1233 1191 1150 1110 1072 1036 1001 967 935 904 874 845 817 791 765 740 716 693 671 650 630 610 591 573 555 538

-3.84 -3.82 -3.79 -3.77 -3.75 -3.73 -3.71 -3.69 -3.67 -3.65 -3.63 -3.61 -3.59 -3.58 -3.56 -3.54 -3.52 -3.50 -3.48 -3.46 -3.45 -3.43 -3.41 -3.39 -3.38 -3.36 -3.34 -3.32 -3.31 -3.29 -3.27 -3.26 -3.24 -3.22 -3.21 -3.19 -3.18 -3.16 -3.15

-1.93 -1.97 -2.00 -2.04 -2.08 -2.11 -2.15 -2.19 -2.22 -2.26 -2.29 -2.33 -2.36 -2.40 -2.43 -2.47 -2.50 -2.54 -2.57 -2.61 -2.64 -2.67 -2.71 -2.74 -2.77 -2.80 -2.84 -2.87 -2.90 -2.93 -2.97 -3.00 -3.03 -3.06 -3.09 -3.12 -3.15 -3.18 -3.21

1.96 2.00 2.03 2.07 2.11 2.15 2.19 2.23 2.26 2.30 2.34 2.37 2.41 2.45 2.48 2.52 2.56 2.59 2.63 2.66 2.70 2.74 2.77 2.81 2.84 2.88 2.91 2.94 2.98 3.01 3.05 3.08 3.11 3.15 3.18 3.21 3.25 3.28 3.31

-0.51 -0.52 -0.54 -0.55 -0.56 -0.58 -0.59 -0.60 -0.62 -0.63 -0.64 -0.66 -0.67 -0.68 -0.70 -0.71 -0.73 -0.74 -0.76 -0.77 -0.78 -0.80 -0.81 -0.83 -0.84 -0.86 -0.87 -0.89 -0.90 -0.92 -0.93 -0.95 -0.96 -0.98 -0.99 -1.01 -1.02 -1.04 -1.05

0.50 0.52 0.53 0.54 0.55 0.57 0.58 0.59 0.61 0.62 0.63 0.64 0.66 0.67 0.68 0.70 0.71 0.72 0.74 0.75 0.77 0.78 0.79 0.81 0.82 0.84 0.85 0.86 0.88 0.89 0.91 0.92 0.93 0.95 0.96 0.98 0.99 1.01 1.02

NTC SENSORS MLHT502F3970

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87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125

488 473 458 444 431 418 405 393 381 370 359 348 338 328 318 309 300 291 283 275 267 260 252 245 238 232 225 219 213 207 202 196 191 186 181 176 172 167 163

505 489 474 460 446 432 419 407 395 383 372 361 350 340 330 321 312 303 294 286 278 270 263 255 248 241 235 228 222 216 210 205 199 194 189 184 179 175 170

521 506 490 475 461 447 434 421 409 397 385 374 363 353 343 333 324 314 306 297 289 281 273 266 258 251 245 238 232 225 219 214 208 202 197 192 187 182 178

-3.13 -3.11 -3.10 -3.08 -3.07 -3.05 -3.04 -3.02 -3.01 -3.00 -2.98 -2.97 -2.95 -2.94 -2.92 -2.91 -2.90 -2.88 -2.87 -2.86 -2.84 -2.83 -2.82 -2.80 -2.79 -2.78 -2.77 -2.75 -2.74 -2.73 -2.71 -2.70 -2.69 -2.68 -2.67 -2.65 -2.64 -2.63 -2.62

-3.24 -3.28 -3.31 -3.33 -3.36 -3.39 -3.42 -3.45 -3.48 -3.51 -3.54 -3.57 -3.60 -3.63 -3.65 -3.68 -3.71 -3.74 -3.77 -3.79 -3.82 -3.85 -3.87 -3.90 -3.93 -3.96 -3.98 -4.01 -4.03 -4.06 -4.09 -4.11 -4.14 -4.16 -4.19 -4.22 -4.24 -4.27 -4.29

3.34 3.38 3.41 3.44 3.47 3.50 3.53 3.57 3.60 3.63 3.66 3.69 3.72 3.75 3.78 3.81 3.84 3.87 3.90 3.93 3.96 3.99 4.02 4.05 4.08 4.11 4.14 4.17 4.19 4.22 4.25 4.28 4.31 4.34 4.36 4.39 4.42 4.45 4.47

-1.07 -1.08 -1.10 -1.12 -1.13 -1.15 -1.16 -1.18 -1.20 -1.21 -1.23 -1.24 -1.26 -1.28 -1.29 -1.31 -1.33 -1.34 -1.36 -1.38 -1.39 -1.41 -1.43 -1.44 -1.46 -1.48 -1.50 -1.51 -1.53 -1.55 -1.57 -1.58 -1.60 -1.62 -1.64 -1.65 -1.67 -1.69 -1.71

1.04 1.05 1.07 1.08 1.10 1.11 1.13 1.14 1.16 1.17 1.19 1.20 1.22 1.23 1.25 1.26 1.28 1.30 1.31 1.33 1.34 1.36 1.38 1.39 1.41 1.42 1.44 1.46 1.47 1.49 1.51 1.52 1.54 1.56 1.57 1.59 1.61 1.62 1.64

NTC SENSORS MLHT502F3970

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