Datasheet 2322 640 5. Datasheet (VISHAY)

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2322 640 5....

Vishay BCcomponents

NTC Thermistors, Accuracy Line

FEATURES

• Accurate over a wide temperature range (tolerance on

B-value between 2.5% and 0.5%)

• Good stability over a long life

• Excellent price/performance ratio

• Flexible leads

• Low heat conductivity through 0.4 mm diameter Ni-leads

APPLICATIONS

QUICK REFERENCE DATA

PARAMETER VALUE

Resistance value at 25
Tolerance on R
Tolerance on B
Maximum dissipation 100 mW
Dissipation factor
Response time; note 1
Thermal time constant
Operating temperature range at:
zero dissipation (continuously)
zero dissipation (for short
maximum dissipation (100 mW) 0 to +55
Climatic category 40/125/56
Mass

Notes

1. Response time in silicone oil MS200/50. This is the time needed
for the sensor to reach 63.2% of the total temperature difference
when subjected to a temperature change from 25
85 ° C in oil.

2. Valid for all types with the exception of 2322 640 5.474.

° C 2 to 470 k Ω

-value

25

-value

25/85

δ

τ

± 5%; ± 3%; ± 2%; ± 1%

± 2.5 to 0.5%

2.2 mW/K

≈ 1.7 s

13 s

− 40 to +125 ° C

≤ 150 ° C

° C

≈ 0.11 g

° C in air to

• Temperature sensing and control.

These thermistors have a negative temperature coefficient.
The device consists of a chip with two tinned nickel leads and
is colour coded.

PACKAGING

The thermistors are packed in cardboard boxes; the smallest
packing quantity is 500 units.

MARKING

The thermistors are marked with coloured bands; see
Dimentions and “Electrical data and ordering information”

MOUNTING

By soldering in any position.

ELECTRICAL DATA AND ORDERING INFORMATION

R

25

(k Ω )

2 3528 K

2.7 3977 K

4.7 3977 K

5 3977 K
10 3977 K
12 3740 K
22 3740 K
47 4090 K
68 4190 K

100 4190 K
470 4570 K

Notes

1. Extended range available on request.

2. Thermistors have a 12-digit catalog number starting with 2322 640 5; the next digit indicates the tolerance and the last 3 digits indicate the
resistance value.

www.vishay.com For technical questions contact: [e-mail]
64 Revision: 15-Jun-04

B

-VALUE

25/85

± 0.5% 3202 6202 4202 5202 orange orange
± 0.75% 3272 6272 4272 5272 red red
± 0.75% 3472 6472 4472 5472 green green
± 0.75% 3502 6502 4502 5502 black white
± 0.75% 3103 6103 4103 5103 blue blue

± 2% 3123 6123 4123

± 2% 3223 6223 4223
± 1.5% 3473 6473 4473
± 1.5% 3683 6683 4683
± 1.5% 3104 6104 4104 5104 brown brown
± 1.5% 3474 6474 4474

R

25

CATALOG NUMBER 2322 640 5.... CODING (see dimensions)

± 5% R

± 3% R

25

± 2% R

25

± 1% I II

25

−

−

−

−

−

yellow yellow

white white
black black

grey grey

violet violet

Document Number: 29048

2322 640 5....

NTC Thermistors, Accuracy Line

DIMENSIONS in millimeters

3.4 max.

6.0 max

2 ± 1.0

2.54

40

±1.5

I

II

LONG TERM STABILITY OF R25 AS A
FUNCTION OF TEST DURATION AT
MAXIMUM TEMPERATURE (150 °C).

0.4

∆R

25

R

25

(%)

0.2

3

max.

I

II

± 0.04

Curves valid for 2.2 to 10 kΩ.

Curve 1: maximum deviation.

1

Curve 2: average deviation.

Curve 3: minimum deviation.

2

Vishay BCcomponents

DERATING AND LONG TERM STABILITY

P

(%)

100

0

LONG TERM STABILITY OF T AS A
FUNCTION OF TEST DURATION AT
MAXIMUM TEMPERATURE (150 °C).

0.05

∆T

(K)

0

05540 85 125

o

T ( C)

amb

Power derating curve.

Curves valid for 2.2 to 10 kΩ.

Curve 1: minimum deviation.

Curve 2: average deviation.

1

Curve 3: maximum deviation.

2

0.05

0.1

3

2

10

3

10

test duration (h)

AT 2 K Ω

25

R

25

4

10

2322 640 .....; see note 1

5.202

0.2

0

2

10

3

10

test duration (h)

3

4

10

RESISTANCE VALUES AT INTERMEDIATE TEMPERATURES WITH R

T

(

oper

° C)

/R

R

T

25

− 40 23.3402 1.65

− 35 17.3347 1.49

− 30 13.0166 1.34

− 25 9.8764 1.19

− 20 7.5682 1.05

− 15 5.8541 0.92

− 10 4.5688 0.79

− 5 3.5961 0.66

0 2.8533 0.54

5 2.2815 0.43
10 1.8376 0.31
15 1.4904 0.21
20 1.2169 0.10
25 1.0000 0.00
30 0.8266 0.10
35 0.6873 0.19
40 0.5746 0.28
45 0.4827 0.37

∆ R DUE TO

B-TOLERANCE

(%)

TC

(%/K)

− 6.06 46684

− 5.84 34672

− 5.62 26035

− 5.42 19754

− 5.23 15138

− 5.05 11709

− 4.87 9138

− 4.71 7193

− 4.55 5707

− 4.40 4563

− 4.26 3675

− 4.12 2981

− 3.99 2434

− 3.87 2000

− 3.75 1653

− 3.63 1375

− 3.53 1149

− 3.42 965.0

Document Number: 29048 For technical questions contact: [e-mail]

www.vishay.com

Revision: 15-Jun-04 65

2322 640 5....

Vishay BCcomponents

T

oper

(°C)

50 0.4073 0.46
55 0.3452 0.54
60 0.2937 0.62
65 0.2508 0.70
70 0.2149 0.78
75 0.1847 0.85
80 0.1593 0.92
85 0.1377 0.99
90 0.1194 1.06

95 0.1038 1.13
100 0.09045 1.19
105 0.07900 1.25
110 0.06915 1.31
115 0.06066 1.37
120 0.05332 1.43 −2.29 106.6
125 0.04696 1.49 −2.23 93.9
130 0.04143 1.54 −2.18 82.9
135 0.03662 1.60 −2.13 73.3
140 0.03243 1.65 −2.08 64.9
145 0.02877 1.70 −2.03 57.5
150 0.02556 1.75 −2.33 51.1

RT/R

25

∆R DUE TO

B-TOLERANCE

NTC Thermistors, Accuracy Line

TC

(%)

(%/K)

− 3.32 814.7

− 3.23 690.5

− 3.14 587.5

− 3.05 501.7

− 2.97 429.8

− 2.89 369.5

− 2.81 318.6

− 2.73 275.5

− 2.66 238.9

− 2.59 207.6

− 2.53 180.9

− 2.46 158.0

− 2.40 138.3

−2.34 121.3

R

2322 640 .....; see note 1

25

5.202

RESISTANCE VALUES AT INTERMEDIATE TEMPERATURES WITH R25 AT 2.7 KΩ , 4.7 K Ω, 5 KΩ & 10 KΩ

R

T

oper

(°C)

−40 33.21 2.66 6.57 89.67 156.1 166.1 332.1

−35 23.99 2.41 6.36 64.77 112.8 120.0 240.0

−30 17.52 2.17 6.15 47.31 82.35 87.60 175.2

−25 12.93 1.94 5.95 34.91 60.77 64.65 129.3

−20 9.636 1.71 5.76 26.02 45.30 48.18 96.36

−15 7.250 1.50 5.58 19.58 34.08 36.25 72.50

−10 5.505 1.29 5.40 14.86 25.87 27.52 55.05

−5 4.216 1.08 5.24 11.38 19.81 21.08 42.16

0 3.255 0.89 5.08 8.790 15.30 16.28 32.56

5 2.534 0.70 4.92 6.842 11.91 12.67 25.34
10 1.987 0.52 4.78 5.366 9.340 9.936 19.87
15 1.570 0.34 4.64 4.239 7.378 7.849 15.70
20 1.249 0.17 4.50 3.372 5.869 6.244 12.49
25 1.000 0.00 4.37 2.700 4.700 5.000 10.00
30 0.8059 0.16 4.25 2.176 3.788 4.030 8.059
35 0.6535 0.32 4.13 1.764 3.072 3.267 6.535
40 0.5330 0.47 4.02 1.439 2.505 2.665 5.330
45 0.4372 0.62 3.91 1.180 2.055 2.186 4.372
50 0.3605 0.77 3.80 0.973 1.694 1.803 3.606
55 0.2989 0.91 3.70 0.807 1.405 1.494 2.989
60 0.2490 1.05 3.60 0.672 1.170 1.245 2.490
65 0.2084 1.18 3.51 0.562 0.9797 1.042 2.084
70 0.1753 1.31 3.42 0.473 0.8239 0.8765 1.753
75 0.1481 1.44 3.33 0.399 0.6960 0.7405 1.481
80 0.1256 1.57 3.25 0.339 0.5905 0.6282 1.256
85 0.1070 1.69 3.16 0.289 0.5031 0.5352 1.070
90 0.09154 1.81 3.09 0.247 0.4303 0.4577 0.9154
95 0.07860 1.93 3.01 0.212 0.3694 0.3930 0.7860

100 0.06773 2.04 2.94 0.182 0.3183 0.3387 0.6773
105 0.05858 2.15 2.87 0.158 0.2753 0.2929 0.5858
110 0.05083 2.26 2.80 0.137 0.2389 0.2542 0.5083

www.vishay.com For technical questions contact: [e-mail]
66 Revision: 15-Jun-04

RT/R

25

∆R DUE TO

B-TOLERANCE

(%)

TC

(%/K)

2322 640 .....; see note 1

5.272 5.472 5.502 5.103

25

Document Number: 29048

2322 640 5....

NTC Thermistors, Accuracy Line

T

oper

(°C)

115 0.04426 2.37 2.73 0.1195 0.2080 0.2213 0.4426
120 0.03866 2.47 2.67 0.1044 0.1817 0.1933 0.3866
125 0.03387 2.57 2.61 0.0915 0.1592 0.1694 0.3387
130 0.02977 2.67 2.55 0.0804 0.1399 0.1488 0.2977
135 0.02624 2.77 2.49 0.0709 0.1233 0.1312 0.2624
140 0.02319 2.86 2.43 0.0626 0.1090 0.1160 0.2319
145 0.02055 2.96 2.38 0.0555 0.0966 0.1028 0.2055
150 0.01826 3.05 2.33 0.0493 0.0858 0.0913 0.1826

RT/R

25

∆R DUE TO

B-TOLERANCE

(%)

TC

(%/K)

5.272 5.472 5.502 5.103

Vishay BCcomponents

R

2322 640 .....; see note 1

25

RESISTANCE VALUES AT INTERMEDIATE TEMPERATURES WITH R25 AT 12 KΩ AND 22 KΩ

R

T

amb

(°C)

−40 25.78 6.81 6.09 309.4 567.2

−35 19.13 6.16 5.89 229.5 420.8

−30 14.32 5.53 5.70 171.8 315.0

−25 10.82 4.93 5.52 129.8 238.0

−20 8.245 4.35 5.35 98.93 181.4

−15 6.335 3.80 5.19 76.02 139.4

−10 4.907 3.26 5.03 58.88 107.9

−5 3.830 2.74 4.88 45.95 84.25

0 3.011 2.24 4.73 36.13 66.24

5 2.384 1.76 4.60 28.60 52.45
10 1.900 1.30 4.46 22.80 41.81
15 1.525 0.85 4.34 18.30 33.55
20 1.231 0.42 4.21 14.77 27.09
25 1.000 0.00 4.10 12.00 22.00
30 0.8170 0.41 3.98 9.804 17.97
35 0.6712 0.80 3.88 8.054 14.77
40 0.5543 1.19 3.77 6.652 12.20
45 0.4602 1.57 3.67 5.522 10.12
50 0.3839 1.94 3.57 4.607 8.447
55 0.3219 2.30 3.48 3.862 7.081
60 0.2710 2.65 3.39 3.252 5.963
65 0.2293 2.99 3.30 2.751 5.044
70 0.1947 3.33 3.22 2.337 4.284
75 0.1661 3.66 3.14 1.993 3.654
80 0.1422 3.98 3.06 1.707 3.129
85 0.1223 4.29 2.99 1.467 2.690
90 0.1055 4.60 2.92 1.266 2.321
95 0.09135 4.90 2.85 1.096 2.010

100 0.07937 5.19 2.78 0.9524 1.746
105 0.06919 5.48 2.71 0.8302 1.522
110 0.06050 5.76 2.65 0.7260 1.331
115 0.05307 6.04 2.59 0.6369 1.168
120 0.04670 6.31 2.53 0.5604 1.027
125 0.04121 6.57 2.47 0.4945 0.9065

RT/R

25

∆R DUE TO

B-TOLERANCE

(%)

TC

(%/K)

2322 640 .....; see note 1

5.123 5.223

25

RESISTANCE VALUES AT INTERMEDIATE TEMPERATURES WITH R25 AT 47 KΩ

R

T

amb

(°C)

−40 33.81 5.55 6.55 1589

−35 24.50 5.02 6.34 1151

−30 17.93 4.52 6.15 842.8

−25 13.25 4.03 5.96 622.6

Document Number: 29048 For technical questions contact: [e-mail]
Revision: 15-Jun-04 67

RT/R

25

∆R DUE TO

B-TOLERANCE

(%)

TC

(%/K)

2322 640 .....; see note 1

25

5.473

www.vishay.com

2322 640 5....

Vishay BCcomponents

T

amb

(°C)

−20 9.875 3.56 5.78 464.1

−15 7.425 3.10 5.61 349.0

−10 5.630 2.67 5.45 264.6

−5 4.304 2.24 5.29 202.3

0 3.315 1.84 5.14 155.8

5 2.573 1.44 4.99 120.9
10 2.011 1.07 4.85 94.53
15 1.583 0.70 4.72 74.40
20 1.254 0.34 4.59 58.95
25 1.000 0.00 4.46 47.00
30 0.8024 0.33 4.34 37.71
35 0.6474 0.66 4.23 30.43
40 0.5255 0.98 4.12 24.70
45 0.4288 1.28 4.01 20.15
50 0.3518 1.59 3.91 16.53
55 0.2901 1.88 3.81 13.63
60 0.2403 2.17 3.71 11.30
65 0.2001 2.45 3.62 9.404
70 0.1674 2.72 3.53 7.865
75 0.1406 2.99 3.44 6.607
80 0.1186 3.25 3.36 5.573
85 0.1004 3.51 3.28 4.721
90 0.08542 3.76 3.20 4.015
95 0.07292 4.00 3.13 3.427

100 0.06248 4.24 3.06 2.936
105 0.05372 4.47 2.98 2.525
110 0.04635 4.70 2.92 2.179
115 0.04013 4.93 2.85 1.886
120 0.03485 5.15 2.79 1.638
125 0.03037 5.36 2.73 1.427
130 0.02654 5.57 2.67 1.247
135 0.02326 5.78 2.61 1.093
140 0.02044 5.98 2.55 0.9608
145 0.01802 6.18 2.50 0.8468
150 0.01592 6.37 2.44 0.7483

RT/R

25

∆R DUE TO

B-TOLERANCE

NTC Thermistors, Accuracy Line

TC

(%)

(%/K)

R

2322 640 .....; see note 1

25

5.473

RESISTANCE VALUES AT INTERMEDIATE TEMPERATURES WITH R25 AT 68 KΩ AND 100 KΩ

R

T

amb

(°C)

−40 36.66 5.69 6.70 2493 3666

−35 26.38 5.15 6.49 1794 2638

−30 19.17 4.63 6.29 1303 1917

−25 14.06 4.13 6.10 956.2 1406

−20 10.41 3.65 5.92 708.0 1041

−15 7.779 3.18 5.74 528.9 777.9

−10 5.861 2.73 5.57 398.5 586.1

−5 4.453 2.30 5.41 302.8 445.3

0 3.409 1.88 5.26 231.8 340.9

5 2.631 1.48 5.11 178.9 263.1
10 2.044 1.09 4.97 139.0 204.4
15 1.600 0.72 4.83 108.8 160.0
20 1.261 0.35 4.70 85.74 126.1
25 1.000 0.00 4.57 68.00 100.0
30 0.7981 0.34 4.45 54.27 79.81
35 0.6408 0.67 4.35 43.57 64.08
40 0.5175 1.00 4.22 35.19 51.74

www.vishay.com For technical questions contact: [e-mail]
68 Revision: 15-Jun-04

RT/R

25

∆R DUE TO

B-TOLERANCE

(%)

TC

(%/K)

2322 640 .....; see note 1

6.683 6.104

25

Document Number: 29048

2322 640 5....

NTC Thermistors, Accuracy Line

T

amb

(°C)

45 0.4202 1.32 4.11 28.57 42.02
50 0.3431 1.63 4.00 23.33 34.31
55 0.2816 1.93 3.90 19.15 28.16
60 0.2322 2.22 3.80 15.79 23.22
65 0.1925 2.51 3.71 13.09 19.25
70 0.1602 2.79 3.62 10.90 16.03
75 0.1340 3.06 3.53 9.114 13.40
80 0.1126 3.33 3.45 7.655 11.26
85 0.09496 3.59 3.36 6.457 9.496
90 0.08042 3.85 3.28 5.469 8.042

95 0.06837 4.10 3.21 4.649 6.837
100 0.05835 4.35 3.13 3.968 5.835
105 0.04998 4.59 3.06 3.399 4.998
110 0.04296 4.82 2.99 2.921 4.296
115 0.03705 5.05 2.92 2.519 3.705
120 0.03206 5.28 2.86 2.180 3.206
125 0.02783 5.50 2.80 1.892 2.783

RT/R

25

∆R DUE TO

B-TOLERANCE

(%)

TC

(%/K)

6.683 6.104

Vishay BCcomponents

R

2322 640 .....; see note 1

25

RESISTANCE VALUES AT INTERMEDIATE TEMPERATURES WITH R25 AT 470 KΩ

R

T

amb

(°C)

−40 48.62 6.22 7.13 22850

−35 34.19 5.63 6.91 16068

−30 24.28 5.06 6.71 11413

−25 17.42 4.51 6.52 8185

−20 12.61 3.98 6.33 5926

−15 9.211 3.47 6.15 4329

−10 6.788 2.98 5.98 3190

−5 5.045 2.51 5.82 2371

0 3.781 2.06 5.66 1776

5 2.855 1.62 5.50 1342
10 2.173 1.19 5.36 1021
15 1.666 0.78 5.22 783.0
20 1.286 0.38 5.08 604.6
25 1.000 0.00 4.95 470.0
30 0.7825 0.37 4.82 367.8
35 0.6163 0.74 4.70 289.6
40 0.4883 1.09 4.59 229.5
45 0.3892 1.44 4.47 182.9
50 0.3120 1.77 4.36 146.7
55 0.2515 2.10 4.26 118.2
60 0.2038 2.43 4.15 95.80
65 0.1660 2.74 4.06 78.03
70 0.1359 3.05 3.96 63.88
75 0.1118 3.35 3.87 52.55
80 0.09240 3.64 3.78 43.43
85 0.07670 3.93 3.69 36.05
90 0.06395 4.21 3.61 30.06
95 0.05354 4.48 3.53 25.16

100 0.04501 4.75 3.45 21.15
105 0.03798 5.01 3.37 17.85
110 0.03218 5.27 3.30 15.12
115 0.02736 5.52 3.23 12.86
120 0.02335 5.77 3.16 10.97
125 0.01999 6.01 3.09 9.396

Note

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: 29048 For technical questions contact: [e-mail]
Revision: 15-Jun-04 69

RT/R

25

∆R DUE TO

B-TOLERANCE

(%)

TC

(%/K)

2322 640 .....; see note 1

25

5.474

www.vishay.com