B57891M0244J000 EPCOS Inc, B57891M0244J000 Datasheet - Page 10

• Manufacturer Part Number: B57891M0244J000
• Description: Thermistors - NTC 891/240 K/J 5% NTC Thermistor
• Manufacturer: EPCOS Inc
• Series: B57891Mr
• Type: NTCr

Specifications of B57891M0244J000

• Resistance: 240 KOhms
• Tolerance: 5 %
• Termination Style: Radial
• Dimensions: 3.5 mm Dia. x 6.5 mm L
• Lead Spacing: 2.5 mm
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

R/T characteristics
R/T No.
T ( C)
Please read Cautions and warnings and
Important notes at the end of this document.
Temperature measurement and compensation
Leaded NTC thermistors, lead spacing 2.5 mm
100.0
105.0
110.0
115.0
120.0
125.0
130.0
135.0
140.0
145.0
150.0
155.0
55.0
50.0
45.0
40.0
35.0
30.0
25.0
20.0
15.0
10.0
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
5.0
0.0
5.0
4003
B
R
103.81
73.707
52.723
37.988
27.565
20.142
14.801
10.976
25/100
T
/R
8.1744
6.1407
4.6331
3.5243
2.6995
2.0831
1.6189
1.2666
1.0000
0.78351
0.62372
0.49937
0.40218
0.32557
0.26402
0.21527
0.17693
0.14616
0.12097
0.10053
0.083761
0.070039
0.058937
0.049777
0.042146
0.035803
0.030504
0.026067
0.022332
0.019186
0.016515
0.014253
0.012367
0.010758
0.0093933
25
= 4450 K
6.8
6.7
6.6
6.5
6.4
6.2
6.1
5.9
5.8
5.7
5.5
5.4
5.3
5.1
5.0
4.9
4.7
4.6
4.5
4.4
4.3
4.2
4.1
4.0
3.9
3.8
3.7
3.7
3.6
3.5
3.4
3.4
3.3
3.2
3.2
3.1
3.0
3.0
2.9
2.9
2.8
2.8
2.7
(%/K) R
4012
B
115.76
80.102
56.067
39.677
28.374
20.496
14.949
11.004
25/100
T
/R
8.1721
6.1208
4.6219
3.5176
2.6973
2.0834
1.6205
1.2689
1.0000
0.79302
0.63266
0.50765
0.40961
0.33229
0.27096
0.22206
0.18287
0.1513
0.12574
0.10496
0.087977
0.074045
0.062565
0.053067
0.045177
0.038597
0.03309
0.028464
0.024564
25
= 4355 K
Page 10 of 23
7.5
7.2
7.0
6.8
6.6
6.4
6.2
6.0
5.9
5.7
5.5
5.4
5.2
5.1
5.0
4.8
4.7
4.6
4.5
4.3
4.2
4.1
4.0
3.9
3.8
3.7
3.7
3.6
3.5
3.4
3.3
3.3
3.2
3.1
3.0
3.0
2.9
(%/K) R
4901
B
87.89
61.759
43.934
31.618
23.006
16.915
12.555
9.4143
7.1172
5.4308
4.1505
3.2014
2.5011
1.9691
1.5618
1.2474
1.0000
0.808
0.6569
0.5372
0.44235
0.3661
0.30393
0.25359
0.21283
0.17942
0.15183
0.12901
0.11002
0.094179
0.080896
0.069722
0.060397
0.052493
0.045733
0.039963
0.035059
0.030844
0.027192
0.024034
0.021285
0.018895
0.016813
25/100
T
/R
25
= 3950 K
7.1
6.9
6.7
6.5
6.3
6.1
5.9
5.7
5.5
5.4
5.2
5.0
4.9
4.7
4.6
4.5
4.3
4.2
4.1
4.0
3.9
3.8
3.7
3.6
3.5
3.4
3.3
3.2
3.1
3.1
3.0
2.9
2.9
2.8
2.7
2.7
2.6
2.6
2.5
2.4
2.4
2.4
2.3
(%/K)
B57891M
M891