Page 1
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 thereinwithout EPCOS' prior express consent is prohibited.
Page 2
Temperature measurement B57871
Leaded NTCs, lead spacing 2.5 mm S871
Applications
Dimensional drawing
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
Dimensions in mm
Approx. weight 120 mg
General technical data
Climatic category (IEC 60068-1) 55/155/56
Max. power (at 25 °C) P
60 mW
25
Resistance tolerance ∆RR/RR±1, ±3, ±5 %
Rated temperature T
Dissipation factor (in air) δ
Thermal cooling time constant (in air) τ
Heat capacity C
th
c
25 °C
R
approx. 3.8 mW/K
approx. 7.5 s
approx. 28.5 mJ/K
th
Electrical specification and ordering codes
R
25
Ω
No. of R/T
characteristic
B
K
25/100
Ordering code
2.1 k 1008 3560 ±1% B57871S0212+000
10 k
10 k
12 k
30 k
+ = Resistance tolerance
F = ±1%
H = ±3%
J = ±5%
Cautions and warnings at the end of this document.
8016 3988 ±1% B57871S0103+001
2908 3460 ±1% B57871S0103+002
2901 3760 ±1% B57871S0123+000
8018 3964 ±1% B57871S0303+000
Page 2 of 25Please read Important notes and
Page 3
Temperature measurement B57871
Leaded NTCs, lead spacing 2.5 mm S871
Reliability data
Test Standard Test conditions ∆R25/R
(typical)
Storage in
dry heat
IEC
60068-2-2
Storage at upper
category temperature
< 2% No visible
T: 155 °C
t: 1000 h
Storage in damp
heat, steady state
IEC
60068-2-78
Temperature of air: 40 °C
Relative humidity of air: 93%
< 1% No visible
Duration: 56 days
Rapid temperature
cycling
IEC
60068-2-14
Lower test temperature: 55 °C
Upper test temperature: 155 °C
< 2% No visible
Number of cycles: 100
Endurance P
: 60 mW
max
< 3% No visible
t: 1000 h
Long-term stability
(empirical value)
Temperature: 70 °C
t: 10000 h
< 3% No visible
Remarks
25
damage
damage
damage
damage
damage
Cautions and warnings at the end of this document.
Page 3 of 25Please read Important notes and
Page 4
Temperature measurement B57871
Leaded NTCs, lead spacing 2.5 mm S871
R/T characteristics
B57871S0212F000
R/T No. 1008
T (°C) B
55.0
50.0
45.0
40.0
35.0
30.0
25.0
20.0
15.0
10.0
5.0
0.0
5.0
10.0
15.0
20.0
25.0
30.0
35.0
40.0
45.0
= 3560 K, R25= 2100 Ω, TR= 25 °C, ∆RR/RR= ± 1%
25/100
R
[Ω] R
nom
111520 105460
82567 78386
61583 58680
46263 44237
34999 33579
26661 25661
20423 19717
15786 15285
12254 11899
9594 9341
7570 7390
6020 5891
4811 4719
3872 3807
3133 3087
2552 2520
2100 2079
1742 1721
1441 1421
1199 1180
1008
[Ω] R
min
990.2
[Ω] ∆RR/RR[±%] ∆T[±°C] α (%/K)
max
117570
86747
64486
48289
36420
27661
21128
16287
12609
9847
7751
6149
4902
3937
3179
2584
2121
1764
1462
1219
1026
5.4 0.9 6.1
5.1 0.8 6.0
4.7 0.8 5.8
4.4 0.8 5.7
4.1 0.7 5.5
3.8 0.7 5.4
3.5 0.7 5.2
3.2 0.6 5.1
2.9 0.6 4.9
2.6 0.5 4.8
2.4 0.5 4.7
2.1 0.5 4.5
1.9 0.4 4.4
1.7 0.4 4.3
1.5 0.4 4.1
1.3 0.3 4.0
1.0 0.3 3.9
1.2 0.3 3.8
1.4 0.4 3.7
1.6 0.5 3.6
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
Cautions and warnings at the end of this document.
Page 4 of 25Please read Important notes and
Page 5
Temperature measurement B57871
Leaded NTCs, lead spacing 2.5 mm S871
B57871S0212F000
R/T No. 1008
T (°C) B
= 3560 K, R25= 2100 Ω, TR= 25 °C, ∆RR/RR= ± 1%
25/100
R
[Ω] R
nom
[Ω] R
min
[Ω] ∆RR/RR[±%] ∆T[±°C] α (%/K)
max
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
55.0
50.0
45.0
40.0
35.0
30.0
25.0
20.0
15.0
10.0
5.0
0.0
5.0
10.0
15.0
20.0
25.0
30.0
35.0
40.0
45.0
= 3560 K, R25= 2100 Ω, TR= 25 °C, ∆RR/RR= ± 3%
25/100
R
[Ω] R
nom
111520 103230
82567 76735
61583 57449
46263 43312
34999 32879
26661 25128
20423 19308
15786 14969
12254 11654
9594 9149
7570 7238
6020 5770
4811 4622
3872 3729
3133 3025
2552 2469
2100 2037
1742 1686
1441 1392
1199 1156
1008
[Ω] R
min
970.0
[Ω] ∆RR/RR[±%] ∆T[±°C] α (%/K)
max
119800
88399
65717
49214
37120
28194
21537
16602
12854
10039
7903
6269
4999
4014
3242
2635
2163
1799
1491
1243
1047
7.4 1.2 6.1
7.1 1.2 6.0
6.7 1.2 5.8
6.4 1.1 5.7
6.1 1.1 5.5
5.8 1.1 5.4
5.5 1.0 5.2
5.2 1.0 5.1
4.9 1.0 4.9
4.6 1.0 4.8
4.4 0.9 4.7
4.1 0.9 4.5
3.9 0.9 4.4
3.7 0.9 4.3
3.5 0.8 4.1
3.3 0.8 4.0
3.0 0.8 3.9
3.2 0.9 3.8
3.4 0.9 3.7
3.6 1.0 3.6
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
Cautions and warnings at the end of this document.
Page 5 of 25Please read Important notes and
Page 6
Temperature measurement B57871
Leaded NTCs, lead spacing 2.5 mm S871
B57871S0212H000
R/T No. 1008
T (°C) B
= 3560 K, R25= 2100 Ω, TR= 25 °C, ∆RR/RR= ± 3%
25/100
R
[Ω] R
nom
[Ω] R
min
[Ω] ∆RR/RR[±%] ∆T[±°C] α (%/K)
max
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
55.0
50.0
45.0
40.0
35.0
30.0
25.0
20.0
15.0
10.0
5.0
0.0
5.0
10.0
15.0
20.0
25.0
30.0
35.0
40.0
45.0
= 3560 K, R25= 2100 Ω, TR= 25 °C, ∆RR/RR= ± 5%
25/100
R
[Ω] R
nom
111520 101000
82567 75084
61583 56217
46263 42387
34999 32179
26661 24595
20423 18900
15786 14654
12254 11408
9594 8957
7570 7087
6020 5650
4811 4526
3872 3652
3133 2962
2552 2418
2100 1995
1742 1651
1441 1363
1199 1132
1008
[Ω] R
min
949.8
[Ω] ∆RR/RR[±%] ∆T[±°C] α (%/K)
max
122030
90050
66949
50139
37820
28728
21945
16918
13100
10231
8054
6389
5095
4092
3304
2687
2205
1834
1520
1267
1067
9.4 1.5 6.1
9.1 1.5 6.0
8.7 1.5 5.8
8.4 1.5 5.7
8.1 1.5 5.5
7.8 1.4 5.4
7.5 1.4 5.2
7.2 1.4 5.1
6.9 1.4 4.9
6.6 1.4 4.8
6.4 1.4 4.7
6.1 1.4 4.5
5.9 1.3 4.4
5.7 1.3 4.3
5.5 1.3 4.1
5.3 1.3 4.0
5.0 1.3 3.9
5.2 1.4 3.8
5.4 1.5 3.7
5.6 1.6 3.6
5.8 1.7 3.5
Cautions and warnings at the end of this document.
Page 6 of 25Please read Important notes and
Page 7
Temperature measurement B57871
Leaded NTCs, lead spacing 2.5 mm S871
B57871S0212J000
R/T No. 1008
T (°C) B
= 3560 K, R25= 2100 Ω, TR= 25 °C, ∆RR/RR= ± 5%
25/100
R
[Ω] R
nom
[Ω] R
min
[Ω] ∆RR/RR[±%] ∆T[±°C] α (%/K)
max
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
55.0
50.0
45.0
40.0
35.0
30.0
25.0
20.0
15.0
10.0
5.0
0.0
Cautions and warnings at the end of this document.
= 3988 K, R25= 10000 Ω, TR= 25 °C, ∆RR/RR= ± 1%
25/100
R
[Ω] R
nom
[Ω] R
min
963050 905700
670100 632940
471690 447380
336500 320420
242590 231870
177000 169790
130370 125490
97070 93743
72929 70652
55330 53765
42315 41237
32650 31907
[Ω] ∆RR/RR[±%] ∆T[±°C] α (%/K)
max
1020400
707260
496000
352580
253310
184210
135250
100400
75206
56895
43393
33393
Page 7 of 25Please read Important notes and
6.0 0.8 7.4
5.5 0.8 7.1
5.2 0.7 6.9
4.8 0.7 6.7
4.4 0.7 6.4
4.1 0.7 6.2
3.7 0.6 6.0
3.4 0.6 5.8
3.1 0.6 5.6
2.8 0.5 5.4
2.5 0.5 5.3
2.3 0.4 5.1
Page 8
Temperature measurement B57871
Leaded NTCs, lead spacing 2.5 mm S871
B57871S0103F001
R/T No. 8016
T (°C) B
5.0
10.0
15.0
20.0
25.0
30.0
35.0
40.0
45.0
50.0
55.0
60.0
65.0
70.0
75.0
80.0
85.0
= 3988 K, R25= 10000 Ω, TR= 25 °C, ∆RR/RR= ± 1%
25/100
R
[Ω] R
nom
25388 24877
19900 19550
15708 15470
12490 12330
10000 9900
8057 7955
6531 6434
5327 5237
4369 4286
3603 3528
2986 2918
2488 2427
2083 2028
1752 1703
1481 1437
1258 1219
1072 1037
[Ω] R
min
[Ω] ∆RR/RR[±%] ∆T[±°C] α (%/K)
max
25898
20250
15946
12650
10100
8159
6628
5417
4451
3678
3054
2549
2138
1801
1525
1297
1108
2.0 0.4 5.0
1.8 0.4 4.8
1.5 0.3 4.7
1.3 0.3 4.5
1.0 0.2 4.4
1.3 0.3 4.3
1.5 0.4 4.1
1.7 0.4 4.0
1.9 0.5 3.9
2.1 0.5 3.8
2.3 0.6 3.7
2.5 0.7 3.6
2.6 0.8 3.5
2.8 0.8 3.4
3.0 0.9 3.3
3.1 1.0 3.2
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
55.0
50.0
45.0
Cautions and warnings at the end of this document.
= 3988 K, R25= 10000 Ω, TR= 25 °C, ∆RR/RR= ± 3%
25/100
R
[Ω] R
nom
[Ω] R
min
963050 886440
670100 619540
471690 437940
[Ω] ∆RR/RR[±%] ∆T[±°C] α (%/K)
max
1039700
720660
505430
Page 8 of 25Please read Important notes and
8.0 1.1 7.4
7.5 1.1 7.1
7.2 1.0 6.9
Page 9
Temperature measurement B57871
Leaded NTCs, lead spacing 2.5 mm S871
B57871S0103H001
R/T No. 8016
T (°C) B
40.0
35.0
30.0
25.0
20.0
15.0
10.0
5.0
0.0
5.0
10.0
15.0
20.0
25.0
30.0
35.0
40.0
45.0
50.0
55.0
60.0
65.0
70.0
75.0
80.0
85.0
= 3988 K, R25= 10000 Ω, TR= 25 °C, ∆RR/RR= ± 3%
25/100
R
[Ω] R
nom
336500 313690
242590 227020
177000 166250
130370 122880
97070 91801
72929 69193
55330 52658
42315 40391
32650 31254
25388 24369
19900 19152
15708 15156
12490 12081
10000 9700
8057 7793
6531 6304
5327 5130
4369 4199
3603 3456
2986 2859
2488 2377
2083 1987
1752 1668
1481 1408
1258 1193
1072 1016
[Ω] R
min
[Ω] ∆RR/RR[±%] ∆T[±°C] α (%/K)
max
359310
258160
187750
137860
102340
76665
58002
44239
34046
26406
20648
16260
12899
10300
8321
6759
5524
4539
3750
3114
2599
2180
1836
1555
1323
1129
6.8 1.0 6.7
6.4 1.0 6.4
6.1 1.0 6.2
5.7 1.0 6.0
5.4 0.9 5.8
5.1 0.9 5.6
4.8 0.9 5.4
4.5 0.9 5.3
4.3 0.8 5.1
4.0 0.8 5.0
3.8 0.8 4.8
3.5 0.8 4.7
3.3 0.7 4.5
3.0 0.7 4.4
3.3 0.8 4.3
3.5 0.8 4.1
3.7 0.9 4.0
3.9 1.0 3.9
4.1 1.1 3.8
4.3 1.2 3.7
4.5 1.2 3.6
4.6 1.3 3.5
4.8 1.4 3.4
5.0 1.5 3.3
5.1 1.6 3.2
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
Cautions and warnings at the end of this document.
Page 9 of 25Please read Important notes and
Page 10
Temperature measurement B57871
Leaded NTCs, lead spacing 2.5 mm S871
B57871S0103J001
R/T No. 8016
T (°C) B
55.0
50.0
45.0
40.0
35.0
30.0
25.0
20.0
15.0
10.0
5.0
0.0
5.0
10.0
15.0
20.0
25.0
30.0
35.0
40.0
45.0
50.0
55.0
60.0
65.0
70.0
75.0
80.0
85.0
= 3988 K, R25= 10000 Ω, TR= 25 °C, ∆RR/RR= ± 5%
25/100
R
[Ω] R
nom
963050 867180
670100 606140
471690 428510
336500 306960
242590 222160
177000 162710
130370 120270
97070 89860
72929 67735
55330 51551
42315 39545
32650 30601
25388 23861
19900 18754
15708 14842
12490 11831
10000 9500
8057 7632
6531 6173
5327 5024
4369 4111
3603 3384
2986 2799
2488 2327
2083 1945
1752 1633
1481 1378
1258 1168
1072
[Ω] R
min
994.2
[Ω] ∆RR/RR[±%] ∆T[±°C] α (%/K)
max
1058900
734070
514870
366040
263020
191290
140470
104280
78124
59108
45085
34699
26914
21046
16574
13149
10500
8482
6889
5630
4626
3822
3174
2649
2221
1871
1585
1348
1151
10.0 1.3 7.4
9.5 1.3 7.1
9.2 1.3 6.9
8.8 1.3 6.7
8.4 1.3 6.4
8.1 1.3 6.2
7.7 1.3 6.0
7.4 1.3 5.8
7.1 1.3 5.6
6.8 1.3 5.4
6.5 1.2 5.3
6.3 1.2 5.1
6.0 1.2 5.0
5.8 1.2 4.8
5.5 1.2 4.7
5.3 1.2 4.5
5.0 1.1 4.4
5.3 1.2 4.3
5.5 1.3 4.1
5.7 1.4 4.0
5.9 1.5 3.9
6.1 1.6 3.8
6.3 1.7 3.7
6.5 1.8 3.6
6.6 1.9 3.5
6.8 2.0 3.4
7.0 2.1 3.3
7.1 2.2 3.2
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
Cautions and warnings at the end of this document.
Page 10 of 25Please read Important notes and
Page 11
Temperature measurement B57871
Leaded NTCs, lead spacing 2.5 mm S871
B57871S0103J001
R/T No. 8016
T (°C) B
= 3988 K, R25= 10000 Ω, TR= 25 °C, ∆RR/RR= ± 5%
25/100
R
[Ω] R
nom
[Ω] R
min
[Ω] ∆RR/RR[±%] ∆T[±°C] α (%/K)
max
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
55.0
50.0
45.0
40.0
35.0
30.0
25.0
20.0
15.0
10.0
5.0
0.0
5.0
10.0
15.0
20.0
25.0
30.0
35.0
40.0
45.0
50.0
55.0
60.0
65.0
70.0
75.0
80.0
85.0
90.0
= 3460 K, R25= 10000 Ω, TR= 25 °C, ∆RR/RR= ± 1%
25/100
R
[Ω] R
nom
453130 429090
337290 320600
253330 241650
191910 183680
146590 140770
112880 108730
87588 84620
68471 66339
53910 52375
42739 41631
34109 33308
27396 26817
22140 21722
17999 17699
14716 14502
12099 11948
10000 9900
8308 8205
6936 6837
5819 5725
4904 4816
4151 4070
3529 3454
3012 2944
2582 2519
2221 2164
1918 1866
1663 1615
1446 1403
1262 1222
[Ω] R
min
[Ω] ∆RR/RR[±%] ∆T[±°C] α (%/K)
max
477170
353990
265010
200130
152420
117030
90556
70602
55446
43848
34910
27974
22557
18298
14930
12250
10100
8411
7035
5912
4991
4232
3603
3081
2644
2278
1970
1710
1489
1301
5.3 0.9 6.0
5.0 0.9 5.8
4.6 0.8 5.6
4.3 0.8 5.5
4.0 0.7 5.3
3.7 0.7 5.1
3.4 0.7 5.0
3.1 0.6 4.9
2.8 0.6 4.7
2.6 0.6 4.6
2.3 0.5 4.4
2.1 0.5 4.3
1.9 0.4 4.2
1.7 0.4 4.1
1.5 0.4 4.0
1.2 0.3 3.9
1.0 0.3 3.8
1.2 0.3 3.7
1.4 0.4 3.6
1.6 0.5 3.5
1.8 0.5 3.4
1.9 0.6 3.3
2.1 0.7 3.2
2.3 0.7 3.1
2.4 0.8 3.0
2.6 0.9 3.0
2.7 0.9 2.9
2.9 1.0 2.8
3.0 1.1 2.8
3.1 1.2 2.7
Cautions and warnings at the end of this document.
Page 11 of 25Please read Important notes and
Page 12
Temperature measurement B57871
Leaded NTCs, lead spacing 2.5 mm S871
B57871S0103F002
R/T No. 2908
T (°C) B
95.0
100.0 970.2 937.4
= 3460 K, R25= 10000 Ω, TR= 25 °C, ∆RR/RR= ± 1%
25/100
R
[Ω] R
nom
1105 1069
[Ω] R
min
[Ω] ∆RR/RR[±%] ∆T[±°C] α (%/K)
max
1141
1003
3.3 1.2 2.6
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
55.0
50.0
45.0
40.0
35.0
30.0
25.0
20.0
15.0
10.0
5.0
0.0
5.0
10.0
15.0
20.0
25.0
30.0
35.0
40.0
45.0
= 3460 K, R25= 10000 Ω, TR= 25 °C, ∆RR/RR= ± 3%
25/100
R
[Ω] R
nom
453130 420030
337290 313850
253330 236580
191910 179850
146590 137840
112880 106470
87588 82868
68471 64970
53910 51296
42739 40776
34109 32626
27396 26269
22140 21280
17999 17339
14716 14208
12099 11706
10000 9700
8308 8038
6936 6698
5819 5609
4904 4718
[Ω] R
min
[Ω] ∆RR/RR[±%] ∆T[±°C] α (%/K)
max
486230
360740
270070
203970
155350
119280
92307
71971
56524
44702
35592
28522
23000
18658
15224
12492
10300
8577
7174
6028
5089
7.3 1.2 6.0
7.0 1.2 5.8
6.6 1.2 5.6
6.3 1.1 5.5
6.0 1.1 5.3
5.7 1.1 5.1
5.4 1.1 5.0
5.1 1.1 4.9
4.8 1.0 4.7
4.6 1.0 4.6
4.3 1.0 4.4
4.1 1.0 4.3
3.9 0.9 4.2
3.7 0.9 4.1
3.5 0.9 4.0
3.2 0.8 3.9
3.0 0.8 3.8
3.2 0.9 3.7
3.4 1.0 3.6
3.6 1.0 3.5
3.8 1.1 3.4
Cautions and warnings at the end of this document.
Page 12 of 25Please read Important notes and
Page 13
Temperature measurement B57871
Leaded NTCs, lead spacing 2.5 mm S871
B57871S0103H002
R/T No. 2908
T (°C) B
50.0
55.0
60.0
65.0
70.0
75.0
80.0
85.0
90.0
95.0
100.0 970.2 918.0
= 3460 K, R25= 10000 Ω, TR= 25 °C, ∆RR/RR= ± 3%
25/100
R
[Ω] R
nom
4151 3987
3529 3384
3012 2884
2582 2468
2221 2120
1918 1828
1663 1582
1446 1374
1262 1197
1105 1047
[Ω] R
min
[Ω] ∆RR/RR[±%] ∆T[±°C] α (%/K)
max
4315
3674
3141
2696
2323
2009
1743
1518
1327
1163
1022
3.9 1.2 3.3
4.1 1.3 3.2
4.3 1.4 3.1
4.4 1.5 3.0
4.6 1.5 3.0
4.7 1.6 2.9
4.9 1.7 2.8
5.0 1.8 2.8
5.1 1.9 2.7
5.3 2.0 2.6
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
55.0
50.0
45.0
40.0
35.0
30.0
25.0
20.0
15.0
10.0
5.0
0.0
Cautions and warnings at the end of this document.
= 3460 K, R25= 10000 Ω, TR= 25 °C, ∆RR/RR= ± 5%
25/100
R
[Ω] R
nom
[Ω] R
min
453130 410960
337290 307100
253330 231510
191910 176010
146590 134900
112880 104210
87588 81117
68471 63600
53910 50218
42739 39921
34109 31943
27396 25721
[Ω] ∆RR/RR[±%] ∆T[±°C] α (%/K)
max
495300
367480
275140
207810
158280
121540
94059
73341
57602
45557
36274
29070
Page 13 of 25Please read Important notes and
9.3 1.6 6.0
9.0 1.5 5.8
8.6 1.5 5.6
8.3 1.5 5.5
8.0 1.5 5.3
7.7 1.5 5.1
7.4 1.5 5.0
7.1 1.5 4.9
6.8 1.5 4.7
6.6 1.4 4.6
6.3 1.4 4.4
6.1 1.4 4.3
Page 14
Temperature measurement B57871
Leaded NTCs, lead spacing 2.5 mm S871
B57871S0103J002
R/T No. 2908
T (°C) B
5.0
10.0
15.0
20.0
25.0
30.0
35.0
40.0
45.0
50.0
55.0
60.0
65.0
70.0
75.0
80.0
85.0
90.0
95.0
100.0 970.2 898.5
= 3460 K, R25= 10000 Ω, TR= 25 °C, ∆RR/RR= ± 5%
25/100
R
[Ω] R
nom
22140 20837
17999 16979
14716 13914
12099 11464
10000 9500
8308 7872
6936 6560
5819 5492
4904 4620
4151 3904
3529 3313
3012 2824
2582 2416
2221 2075
1918 1789
1663 1549
1446 1345
1262 1172
1105 1025
[Ω] R
min
[Ω] ∆RR/RR[±%] ∆T[±°C] α (%/K)
max
23442
19018
15519
12734
10500
8743
7312
6145
5187
4398
3744
3201
2748
2367
2047
1777
1547
1352
1185
1042
5.9 1.4 4.2
5.7 1.4 4.1
5.5 1.4 4.0
5.2 1.4 3.9
5.0 1.3 3.8
5.2 1.4 3.7
5.4 1.5 3.6
5.6 1.6 3.5
5.8 1.7 3.4
5.9 1.8 3.3
6.1 1.9 3.2
6.3 2.0 3.1
6.4 2.1 3.0
6.6 2.2 3.0
6.7 2.3 2.9
6.9 2.4 2.8
7.0 2.5 2.8
7.1 2.6 2.7
7.3 2.8 2.6
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
55.0
50.0
45.0
Cautions and warnings at the end of this document.
= 3760 K, R25= 12000 Ω, TR= 25 °C, ∆RR/RR= ± 1%
25/100
R
[Ω] R
nom
[Ω] R
min
767630 724060
554140 524840
404850 384940
[Ω] ∆RR/RR[±%] ∆T[±°C] α (%/K)
max
811190
583450
424770
Page 14 of 25Please read Important notes and
5.7 0.9 6.4
5.3 0.8 6.3
4.9 0.8 6.1
Page 15
Temperature measurement B57871
Leaded NTCs, lead spacing 2.5 mm S871
B57871S0123F000
R/T No. 2901
T (°C) B
40.0
35.0
30.0
25.0
20.0
15.0
10.0
5.0
0.0
5.0
10.0
15.0
20.0
25.0
30.0
35.0
40.0
45.0
50.0
55.0
60.0
65.0
70.0
75.0
80.0
85.0
90.0
95.0
= 3760 K, R25= 12000 Ω, TR= 25 °C, ∆RR/RR= ± 1%
25/100
R
[Ω] R
nom
299120 285460
223330 213890
168400 161830
128150 123550
98376 95138
75748 73472
58816 57212
45852 44724
36033 35238
28562 28003
22799 22408
18308 18036
14796 14609
12000 11880
9801 9678
8060 7942
6663 6553
5531 5430
4615 4522
3862 3777
3248 3171
2749 2679
2336 2273
1993 1936
1707 1655
1466 1420
1264 1222
1095 1057
[Ω] R
min
[Ω] ∆RR/RR[±%] ∆T[±°C] α (%/K)
max
312780
232770
174970
132750
101610
78023
60421
46980
36827
29121
23191
18580
14983
12120
9925
8178
6773
5633
4709
3947
3325
2819
2399
2050
1758
1512
1306
1133
4.6 0.8 6.0
4.2 0.7 5.8
3.9 0.7 5.6
3.6 0.7 5.5
3.3 0.6 5.3
3.0 0.6 5.1
2.7 0.5 5.0
2.5 0.5 4.9
2.2 0.5 4.7
2.0 0.4 4.6
1.7 0.4 4.5
1.5 0.3 4.3
1.3 0.3 4.2
1.0 0.2 4.1
1.3 0.3 4.0
1.5 0.4 3.9
1.7 0.4 3.8
1.8 0.5 3.7
2.0 0.6 3.6
2.2 0.6 3.5
2.4 0.7 3.4
2.5 0.8 3.3
2.7 0.8 3.2
2.9 0.9 3.2
3.0 1.0 3.1
3.2 1.1 3.0
3.3 1.1 2.9
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
Cautions and warnings at the end of this document.
Page 15 of 25Please read Important notes and
Page 16
Temperature measurement B57871
Leaded NTCs, lead spacing 2.5 mm S871
B57871S0123H000
R/T No. 2901
T (°C) B
55.0
50.0
45.0
40.0
35.0
30.0
25.0
20.0
15.0
10.0
5.0
0.0
5.0
10.0
15.0
20.0
25.0
30.0
35.0
40.0
45.0
50.0
55.0
60.0
65.0
70.0
75.0
80.0
85.0
90.0
95.0
100.0 951.4 898.3
= 3760 K, R25= 12000 Ω, TR= 25 °C, ∆RR/RR= ± 3%
25/100
R
[Ω] R
nom
767630 708710
554140 513760
404850 376840
299120 279480
223330 209420
168400 158460
128150 120990
98376 93170
75748 71957
58816 56036
45852 43807
36033 34518
28562 27432
22799 21952
18308 17670
14796 14313
12000 11640
9801 9482
8060 7781
6663 6420
5531 5319
4615 4429
3862 3700
3248 3106
2749 2624
2336 2226
1993 1896
1707 1621
1466 1390
1264 1197
1095 1035
[Ω] R
min
[Ω] ∆RR/RR[±%] ∆T[±°C] α (%/K)
max
826540
594530
432870
318760
237240
178340
135320
103580
79538
61597
47897
37548
29692
23647
18947
15279
12360
10121
8339
6907
5744
4801
4024
3390
2874
2446
2090
1792
1542
1331
1154
1005
7.7 1.2 6.4
7.3 1.2 6.3
6.9 1.1 6.1
6.6 1.1 6.0
6.2 1.1 5.8
5.9 1.1 5.6
5.6 1.0 5.5
5.3 1.0 5.3
5.0 1.0 5.1
4.7 0.9 5.0
4.5 0.9 4.9
4.2 0.9 4.7
4.0 0.9 4.6
3.7 0.8 4.5
3.5 0.8 4.3
3.3 0.8 4.2
3.0 0.7 4.1
3.3 0.8 4.0
3.5 0.9 3.9
3.7 1.0 3.8
3.8 1.0 3.7
4.0 1.1 3.6
4.2 1.2 3.5
4.4 1.3 3.4
4.5 1.4 3.3
4.7 1.5 3.2
4.9 1.5 3.2
5.0 1.6 3.1
5.2 1.7 3.0
5.3 1.8 2.9
5.4 1.9 2.9
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
Cautions and warnings at the end of this document.
Page 16 of 25Please read Important notes and
Page 17
Temperature measurement B57871
Leaded NTCs, lead spacing 2.5 mm S871
B57871S0123H000
R/T No. 2901
T (°C) B
= 3760 K, R25= 12000 Ω, TR= 25 °C, ∆RR/RR= ± 3%
25/100
R
[Ω] R
nom
[Ω] R
min
[Ω] ∆RR/RR[±%] ∆T[±°C] α (%/K)
max
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
55.0
50.0
45.0
40.0
35.0
30.0
25.0
20.0
15.0
10.0
5.0
0.0
5.0
10.0
15.0
20.0
25.0
30.0
35.0
40.0
45.0
50.0
55.0
60.0
65.0
70.0
75.0
80.0
85.0
90.0
= 3760 K, R25= 12000 Ω, TR= 25 °C, ∆RR/RR= ± 5%
25/100
R
[Ω] R
nom
767630 693360
554140 502670
404850 368740
299120 273500
223330 204960
168400 155090
128150 118420
98376 91203
75748 70442
58816 54860
45852 42890
36033 33797
28562 26860
22799 21496
18308 17303
14796 14017
12000 11400
9801 9286
8060 7620
6663 6287
5531 5208
4615 4337
3862 3622
3248 3041
2749 2569
2336 2180
1993 1856
1707 1587
1466 1361
1264 1172
[Ω] R
min
[Ω] ∆RR/RR[±%] ∆T[±°C] α (%/K)
max
841890
605620
440960
324740
241710
181710
137880
105550
81053
62773
48815
38268
30263
24103
19313
15575
12600
10317
8500
7040
5855
4893
4102
3455
2929
2493
2130
1826
1571
1356
9.7 1.5 6.4
9.3 1.5 6.3
8.9 1.5 6.1
8.6 1.4 6.0
8.2 1.4 5.8
7.9 1.4 5.6
7.6 1.4 5.5
7.3 1.4 5.3
7.0 1.4 5.1
6.7 1.3 5.0
6.5 1.3 4.9
6.2 1.3 4.7
6.0 1.3 4.6
5.7 1.3 4.5
5.5 1.3 4.3
5.3 1.3 4.2
5.0 1.2 4.1
5.3 1.3 4.0
5.5 1.4 3.9
5.7 1.5 3.8
5.8 1.6 3.7
6.0 1.7 3.6
6.2 1.8 3.5
6.4 1.9 3.4
6.5 2.0 3.3
6.7 2.1 3.2
6.9 2.2 3.2
7.0 2.3 3.1
7.2 2.4 3.0
7.3 2.5 2.9
Cautions and warnings at the end of this document.
Page 17 of 25Please read Important notes and
Page 18
Temperature measurement B57871
Leaded NTCs, lead spacing 2.5 mm S871
B57871S0123J000
R/T No. 2901
T (°C) B
95.0
100.0 951.4 879.2
= 3760 K, R25= 12000 Ω, TR= 25 °C, ∆RR/RR= ± 5%
25/100
R
[Ω] R
nom
1095 1013
[Ω] R
min
[Ω] ∆RR/RR[±%] ∆T[±°C] α (%/K)
max
1176
1024
7.4 2.6 2.9
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
55.0
50.0
45.0
40.0
35.0
30.0
25.0
20.0
15.0
10.0
5.0
0.0
5.0
10.0
15.0
20.0
25.0
30.0
35.0
40.0
45.0
= 3964 K, R25= 30000 Ω, TR= 25 °C, ∆RR/RR= ± 1%
25/100
R
[Ω] R
nom
2472200 2325700
1750300 1653700
1253200 1189000
907060 863910
663280 634100
489810 469940
365130 351510
274640 265270
208370 201890
159410 154910
122920 119800
95501 93336
74745 73245
58911 57877
46745 46038
37332 36855
30000 29700
24253 23945
19720 19428
16123 15851
13252 13002
[Ω] R
min
[Ω] ∆RR/RR[±%] ∆T[±°C] α (%/K)
max
2618700
1846900
1317500
950200
692460
509680
378740
284020
214850
163900
126030
97666
76244
59944
47451
37808
30300
24561
20012
16395
13502
5.9 0.8 7.0
5.5 0.8 6.8
5.1 0.8 6.6
4.8 0.7 6.4
4.4 0.7 6.2
4.1 0.7 6.0
3.7 0.6 5.8
3.4 0.6 5.6
3.1 0.6 5.4
2.8 0.5 5.3
2.5 0.5 5.1
2.3 0.5 5.0
2.0 0.4 4.8
1.8 0.4 4.7
1.5 0.3 4.6
1.3 0.3 4.4
1.0 0.2 4.3
1.3 0.3 4.2
1.5 0.4 4.1
1.7 0.4 4.0
1.9 0.5 3.9
Cautions and warnings at the end of this document.
Page 18 of 25Please read Important notes and
Page 19
Temperature measurement B57871
Leaded NTCs, lead spacing 2.5 mm S871
B57871S0303F000
R/T No. 8018
T (°C) B
50.0
55.0
60.0
65.0
70.0
75.0
80.0
85.0
90.0
95.0
100.0
105.0
110.0
115.0
120.0
125.0
= 3964 K, R25= 30000 Ω, TR= 25 °C, ∆RR/RR= ± 1%
25/100
R
[Ω] R
nom
10949 10721
9091 8885
7584 7399
6356 6189
5351 5201
4524 4390
3840 3720
3273 3166
2800 2704
2405 2319
2073 1995
1792 1723
1555 1493
1354 1298
1182 1132
1036
[Ω] R
min
990.3
[Ω] ∆RR/RR[±%] ∆T[±°C] α (%/K)
max
11177
9297
7770
6523
5500
4657
3960
3380
2896
2491
2150
1862
1618
1410
1233
1081
2.1 0.6 3.8
2.3 0.6 3.7
2.4 0.7 3.6
2.6 0.8 3.5
2.8 0.8 3.4
3.0 0.9 3.3
3.1 1.0 3.2
3.3 1.0 3.2
3.4 1.1 3.1
3.6 1.2 3.0
3.7 1.3 2.9
3.9 1.3 2.9
4.0 1.4 2.8
4.1 1.5 2.7
4.3 1.6 2.7
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
55.0
50.0
45.0
40.0
35.0
30.0
25.0
20.0
15.0
10.0
5.0
0.0
Cautions and warnings at the end of this document.
= 3964 K, R25= 30000 Ω, TR= 25 °C, ∆RR/RR= ± 3%
25/100
R
[Ω] R
nom
[Ω] R
min
2472200 2276300
1750300 1618700
1253200 1163900
907060 845770
663280 620830
489810 460140
365130 344210
274640 259780
208370 197730
159410 151720
122920 117340
95501 91426
[Ω] ∆RR/RR[±%] ∆T[±°C] α (%/K)
max
2668200
1881900
1342600
968340
705730
519480
386040
289510
219020
167090
128490
99576
Page 19 of 25Please read Important notes and
7.9 1.1 7.0
7.5 1.1 6.8
7.1 1.1 6.6
6.8 1.1 6.4
6.4 1.0 6.2
6.1 1.0 6.0
5.7 1.0 5.8
5.4 1.0 5.6
5.1 0.9 5.4
4.8 0.9 5.3
4.5 0.9 5.1
4.3 0.9 5.0
Page 20
Temperature measurement B57871
Leaded NTCs, lead spacing 2.5 mm S871
B57871S0303H000
R/T No. 8018
T (°C) B
5.0
10.0
15.0
20.0
25.0
30.0
35.0
40.0
45.0
50.0
55.0
60.0
65.0
70.0
75.0
80.0
85.0
90.0
95.0
100.0
105.0
110.0
115.0
120.0
125.0
= 3964 K, R25= 30000 Ω, TR= 25 °C, ∆RR/RR= ± 3%
25/100
R
[Ω] R
nom
74745 71750
58911 56699
46745 45103
37332 36108
30000 29100
24253 23460
19720 19033
16123 15528
13252 12737
10949 10503
9091 8703
7584 7247
6356 6062
5351 5094
4524 4299
3840 3643
3273 3100
2800 2648
2405 2271
2073 1954
1792 1687
1555 1462
1354 1271
1182 1108
1036
[Ω] R
min
969.6
[Ω] ∆RR/RR[±%] ∆T[±°C] α (%/K)
max
77739
61122
48386
38555
30900
25046
20406
16717
13767
11396
9479
7921
6650
5607
4748
4037
3446
2952
2539
2191
1897
1649
1437
1257
1102
4.0 0.8 4.8
3.8 0.8 4.7
3.5 0.8 4.6
3.3 0.7 4.4
3.0 0.7 4.3
3.3 0.8 4.2
3.5 0.9 4.1
3.7 0.9 4.0
3.9 1.0 3.9
4.1 1.1 3.8
4.3 1.2 3.7
4.4 1.2 3.6
4.6 1.3 3.5
4.8 1.4 3.4
5.0 1.5 3.3
5.1 1.6 3.2
5.3 1.7 3.2
5.4 1.8 3.1
5.6 1.9 3.0
5.7 1.9 2.9
5.9 2.0 2.9
6.0 2.1 2.8
6.1 2.2 2.7
6.3 2.3 2.7
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
55.0
50.0
45.0
Cautions and warnings at the end of this document.
= 3964 K, R25= 30000 Ω, TR= 25 °C, ∆RR/RR= ± 5%
25/100
R
[Ω] R
nom
[Ω] R
min
2472200 2226900
1750300 1583700
1253200 1138800
[Ω] ∆RR/RR[±%] ∆T[±°C] α (%/K)
max
2717600
1916900
1367700
Page 20 of 25Please read Important notes and
9.9 1.4 7.0
9.5 1.4 6.8
9.1 1.4 6.6
Page 21
Temperature measurement B57871
Leaded NTCs, lead spacing 2.5 mm S871
B57871S0303J000
R/T No. 8018
T (°C) B
40.0
35.0
30.0
25.0
20.0
15.0
10.0
5.0
0.0
5.0
10.0
15.0
20.0
25.0
30.0
35.0
40.0
45.0
50.0
55.0
60.0
65.0
70.0
75.0
80.0
85.0
90.0
95.0
100.0
105.0
110.0
115.0
120.0
125.0
= 3964 K, R25= 30000 Ω, TR= 25 °C, ∆RR/RR= ± 5%
25/100
R
[Ω] R
nom
907060 827630
663280 607570
489810 450340
365130 336910
274640 254280
208370 193560
159410 148540
122920 114880
95501 89516
74745 70255
58911 55521
46745 44168
37332 35362
30000 28500
24253 22975
19720 18639
16123 15206
13252 12472
10949 10284
9091 8521
7584 7095
6356 5935
5351 4987
4524 4209
3840 3567
3273 3035
2800 2592
2405 2223
2073 1912
1792 1651
1555 1431
1354 1244
1182 1085
1036
[Ω] R
min
948.9
[Ω] ∆RR/RR[±%] ∆T[±°C] α (%/K)
max
986480
718990
529280
393350
295000
223190
170270
130950
101490
79234
62301
49321
39302
31500
25531
20801
17040
14032
11615
9660
8073
6777
5714
4838
4114
3511
3008
2587
2233
1933
1680
1464
1280
1123
8.8 1.4 6.4
8.4 1.4 6.2
8.1 1.4 6.0
7.7 1.3 5.8
7.4 1.3 5.6
7.1 1.3 5.4
6.8 1.3 5.3
6.5 1.3 5.1
6.3 1.3 5.0
6.0 1.2 4.8
5.8 1.2 4.7
5.5 1.2 4.6
5.3 1.2 4.4
5.0 1.2 4.3
5.3 1.3 4.2
5.5 1.3 4.1
5.7 1.4 4.0
5.9 1.5 3.9
6.1 1.6 3.8
6.3 1.7 3.7
6.4 1.8 3.6
6.6 1.9 3.5
6.8 2.0 3.4
7.0 2.1 3.3
7.1 2.2 3.2
7.3 2.3 3.2
7.4 2.4 3.1
7.6 2.5 3.0
7.7 2.6 2.9
7.9 2.7 2.9
8.0 2.9 2.8
8.1 3.0 2.7
8.3 3.1 2.7
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
Cautions and warnings at the end of this document.
Page 21 of 25Please read Important notes and
Page 22
Temperature measurement B57871
Leaded NTCs, lead spacing 2.5 mm S871
Cautions and warnings at the end of this document.
Page 22 of 25Please read Important notes and
Page 23
Temperature measurement B57871
Leaded NTCs, lead spacing 2.5 mm S871
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.
Cautions and warnings at the end of this document.
Page 23 of 25Please read Important notes and
Page 24
Temperature measurement B57871
Leaded NTCs, lead spacing 2.5 mm S871
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).
Cautions and warnings at the end of this document.
Page 24 of 25Please read Important notes and
Page 25
Important notes
The following applies to all products named in this publication:
1. Some parts of this publication contain statements about the suitability of our products for
certain areas of application. These statements are based on our knowledge of typical requirements that are often placed on our products in the areas of application concerned. We
nevertheless expressly point out that such statements cannot be regarded as binding
statements about the suitability of our products for a particular customer application.
As a rule, EPCOS is either unfamiliar with individual customer applications or less familiar
with them than the customers themselves. For these reasons, it is always ultimately incumbent on the customer to check and decide whether an EPCOS product with the properties described in the product specification is suitable for use in a particular customer application.
2. We also point out that in individual cases, a malfunction of 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 order.
We also reserve the right to discontinue production and delivery of products. Consequently, we cannot guarantee that all products named in this publication will always be
available.
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 Industry” 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.
Page 25 of 25
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