NTC thermistors for temperature measurement Probe assemblies Series/Type:

NTC thermistors for temperature measurement Probe assemblies Series/Type:
NTC thermistors for
temperature measurement
Probe assemblies
Series/Type:
Date:
B57045
March 2006
© EPCOS AG 2006. Reproduction, publication and dissemination of this publication, enclosures hereto and the
information contained therein without EPCOS' prior express consent is prohibited.
Temperature measurement
B57045
Probe assemblies
K45
Applications
Temperature compensation (chassis
mounting)
Temperature measurement (chassis
mounting)
Temperature control (chassis mounting)
Dimensional drawing
Features
Cost-effective
Good thermal coupling through screw-type
case (thread M3)
Electrically isolated aluminum case
Tinned copper leads
Options
Tighter resistance tolerance available on
request
Delivery mode
Bulk
Dimensions in mm
Approx. weight 1 g
General technical data
Climatic category
Max. power
Resistance tolerance
Rated temperature
Dissipation factor
Dissipation factor
Thermal cooling time constant
Thermal cooling time constant
Torque
Insulation resistance
Test voltage
(IEC 60068-1)
(at 25 °C)
(in air)
(on chassis)
(in air)
(on chassis)
P25
∆RR/RR
TR
δth
δth
τc
τc
(V = 100 VDC)
(t = 1 s)
Rins
Vtest
55/125/56
450
±10
25
approx. 9
approx. 20
approx. 75
approx. 15
approx. 0.5
>100
2500
mW
%
°C
mW/K
mW/K
s
s
Nm
MΩ
VAC
Electrical specification and ordering codes
R25
Ω
1k
2.2 k
4.7 k
6.8 k
No. of R/T
characteristic
1011
1013
4001
2903
Please read Important notes and
Cautions and warnings at the end of this document.
B25/100
K
3730 ±3%
3900 ±3%
3950 ±3%
4200 ±3%
Page 2 of 16
Ordering code
B57045K0102K000
B57045K0222K000
B57045K0472K000
B57045K0682K000
Temperature measurement
B57045
Probe assemblies
R25
Ω
10 k
33 k
47 k
68 k
100 k
150 k
K45
No. of R/T
characteristic
2904
1012
4003
2005
2005
2005
B25/100
K
4300 ±3%
4300 ±3%
4450 ±3%
4600 ±3%
4600 ±3%
4600 ±3%
Ordering code
B57045K0103K000
B57045K0333K000
B57045K0473K000
B57045K0683K000
B57045K0104K000
B57045K0154K000
Reliability data
Test
Standard
Storage in
dry heat
IEC
60068-2-2
Storage in damp
heat, steady state
Endurance
Long-term stability
(empirical value)
Test conditions
Storage at upper
category temperature
T: 125 °C
t: 1000 h
IEC
Temperature of air: 40 °C
60068-2-78 Relative humidity of air: 93%
Duration: 56 days
Pmax: 450 mW
t: 1000 h
Temperature: 100 °C
t: 10000 h
Please read Important notes and
Cautions and warnings at the end of this document.
Page 3 of 16
∆R25/R25
(typical)
< 3%
Remarks
< 3%
No visible
damage
< 3%
No visible
damage
No visible
damage
< 5%
No visible
damage
Temperature measurement
B57045
Probe assemblies
K45
R/T characteristics
B57045K0102K000
R/T No.
T (°C)
1011
B25/100 = 3730 K, R25 = 1000 Ω, TR = 20 °C, ∆RR/RR = ± 10%
Rnom[Ω]
Rmin[Ω]
Rmax[Ω]
∆RR/RR[±%] ∆T[±°C]
α (%/K)
55.0
50.0
45.0
40.0
35.0
70014
49906
36015
26296
19411
53341
38595
28248
20901
15625
86686
61216
43782
31690
23197
23.8
22.7
21.6
20.5
19.5
3.5
3.4
3.4
3.3
3.3
6.9
6.6
6.4
6.2
6.0
30.0
25.0
20.0
15.0
10.0
14479
10903
8292
6359
4920
11794
8983
6906
5350
4180
17163
12823
9679
7368
5661
18.5
17.6
16.7
15.9
15.0
3.2
3.2
3.1
3.0
3.0
5.8
5.6
5.4
5.2
5.1
5.0
0.0
5.0
10.0
15.0
3828
3003
2377
1896
1521
3282
2598
2074
1668
1348
4373
3408
2680
2124
1693
14.2
13.5
12.7
12.0
11.4
2.9
2.8
2.8
2.7
2.6
4.9
4.8
4.6
4.5
4.3
20.0
25.0
30.0
35.0
40.0
1228
1000.0
817.8
673.4
557.5
1097
900.0
730.5
597.5
491.4
1359
1100
905.0
749.3
623.5
10.7
10.0
10.7
11.3
11.8
2.5
2.4
2.7
2.9
3.2
4.2
4.1
4.0
3.9
3.8
45.0
50.0
55.0
60.0
65.0
463.6
387.4
323.7
272.0
230.4
406.0
337.2
280.0
233.9
197.0
521.1
437.6
367.3
310.1
263.8
12.4
13.0
13.5
14.0
14.5
3.4
3.6
3.9
4.2
4.4
3.7
3.6
3.5
3.4
3.3
70.0
75.0
80.0
85.0
90.0
196.0
167.4
143.4
123.5
106.7
166.7
141.5
120.6
103.3
88.80
225.4
193.2
166.2
143.6
124.6
15.0
15.4
15.9
16.3
16.8
4.7
5.0
5.2
5.5
5.8
3.2
3.1
3.0
3.0
2.9
95.0
100.0
105.0
110.0
115.0
92.73
80.90
70.62
61.83
54.28
76.80
66.67
57.91
50.46
44.10
108.7
95.14
83.32
73.19
64.46
17.2
17.6
18.0
18.4
18.8
6.1
6.4
6.7
7.0
7.3
2.8
2.8
2.7
2.6
2.6
120.0
125.0
47.79
42.25
38.66
34.02
56.93
50.48
19.1
19.5
7.6
7.9
2.5
2.4
Please read Important notes and
Cautions and warnings at the end of this document.
Page 4 of 16
Temperature measurement
B57045
Probe assemblies
K45
B57045K0222K000
R/T No.
T (°C)
1013
B25/100 = 3900 K, R25 = 2200 Ω, TR = 25 °C, ∆RR/RR = ± 10%
Rnom[Ω]
Rmin[Ω]
Rmax[Ω]
∆RR/RR[±%] ∆T[±°C]
α (%/K)
55.0
50.0
45.0
40.0
35.0
170030
120860
86914
63188
46417
128470
92776
67715
49925
37163
211580
148950
106110
76452
55671
24.4
23.2
22.1
21.0
19.9
3.5
3.5
3.4
3.3
3.3
6.9
6.7
6.5
6.3
6.1
30.0
25.0
20.0
15.0
10.0
34434
25772
19479
14835
11399
27917
21144
16163
12442
9659
40951
30400
22795
17228
13140
18.9
18.0
17.0
16.1
15.3
3.2
3.1
3.1
3.0
2.9
5.9
5.7
5.5
5.4
5.2
5.0
0.0
5.0
10.0
15.0
8822
6882
5405
4276
3404
7548
5943
4709
3758
3016
10096
7821
6101
4795
3793
14.4
13.6
12.9
12.1
11.4
2.9
2.8
2.7
2.6
2.5
5.0
4.9
4.8
4.6
4.5
20.0
25.0
30.0
35.0
40.0
2729
2200
1784
1455
1194
2436
1980
1593
1290
1051
3021
2420
1975
1620
1336
10.7
10.0
10.7
11.3
11.9
2.5
2.4
2.6
2.8
3.0
4.4
4.3
4.1
4.0
3.9
45.0
50.0
55.0
60.0
65.0
984.0
815.5
679.0
568.2
477.6
860.8
708.8
586.4
487.6
407.4
1107
922.2
771.6
648.7
547.7
12.5
13.1
13.6
14.2
14.7
3.3
3.5
3.8
4.0
4.3
3.8
3.7
3.6
3.5
3.4
70.0
75.0
80.0
85.0
90.0
403.1
341.8
290.9
248.6
213.3
341.9
288.2
243.9
207.3
176.9
464.4
395.4
337.9
290.0
249.7
15.2
15.7
16.2
16.6
17.1
4.5
4.8
5.1
5.4
5.6
3.3
3.3
3.2
3.1
3.0
95.0
100.0
105.0
110.0
115.0
183.7
158.7
137.6
119.7
104.5
151.5
130.2
112.4
97.28
84.50
215.8
187.2
162.9
142.2
124.5
17.5
17.9
18.4
18.8
19.1
5.9
6.2
6.5
6.8
7.1
3.0
2.9
2.8
2.8
2.7
73.63
64.37
109.4
96.37
19.5
19.9
7.4
7.7
2.6
2.6
120.0
125.0
91.51
80.37
Please read Important notes and
Cautions and warnings at the end of this document.
Page 5 of 16
Temperature measurement
B57045
Probe assemblies
K45
B57045K0472K000
R/T No.
T (°C)
4001
B25/100 = 3950 K, R25 = 4700 Ω, TR = 25 °C, ∆RR/RR = ± 10%
Rnom[Ω]
Rmin[Ω]
Rmax[Ω]
∆RR/RR[±%] ∆T[±°C]
α (%/K)
55.0
50.0
45.0
40.0
35.0
413850
289760
205520
147560
107170
311930
221930
159800
116380
85667
515760
357580
251230
178740
128670
24.6
23.4
22.2
21.1
20.1
3.4
3.3
3.3
3.2
3.2
7.3
7.0
6.8
6.5
6.3
30.0
25.0
20.0
15.0
10.0
78687
58126
43406
32937
25217
63704
47629
35977
27598
21350
93669
68622
50835
38276
29085
19.0
18.1
17.1
16.2
15.3
3.1
3.1
3.0
2.9
2.9
6.1
5.9
5.7
5.5
5.3
5.0
0.0
5.0
10.0
15.0
19392
15040
11743
9241
7330
16581
12981
10228
8118
6493
22203
17099
13259
10364
8168
14.5
13.7
12.9
12.2
11.4
2.8
2.7
2.7
2.6
2.5
5.2
5.0
4.9
4.7
4.6
20.0
25.0
30.0
35.0
40.0
5855
4700
3777
3071
2512
5227
4230
3372
2723
2212
6483
5170
4181
3420
2813
10.7
10.0
10.7
11.3
12.0
2.4
2.3
2.5
2.8
3.0
4.4
4.3
4.2
4.1
4.0
45.0
50.0
55.0
60.0
65.0
2066
1709
1419
1184
993.4
1807
1485
1224
1015
846.9
2326
1933
1613
1352
1140
12.5
13.1
13.7
14.2
14.8
3.2
3.5
3.7
4.0
4.2
3.9
3.8
3.7
3.6
3.5
70.0
75.0
80.0
85.0
90.0
837.5
709.2
603.2
514.5
440.6
709.7
597.4
505.2
428.6
365.0
965.3
821.0
701.1
600.5
516.2
15.3
15.8
16.2
16.7
17.2
4.5
4.8
5.0
5.3
5.6
3.4
3.3
3.2
3.1
3.1
95.0
100.0
105.0
110.0
115.0
379.6
328.3
284.1
246.7
215.0
312.8
269.0
231.7
200.2
173.6
446.4
387.5
336.6
293.3
256.4
17.6
18.0
18.5
18.9
19.3
5.9
6.2
6.5
6.8
7.1
3.0
2.9
2.9
2.8
2.7
120.0
125.0
187.9
164.4
150.9
131.5
224.8
197.4
19.7
20.0
7.4
7.7
2.7
2.6
Please read Important notes and
Cautions and warnings at the end of this document.
Page 6 of 16
Temperature measurement
B57045
Probe assemblies
K45
B57045K0682K000
R/T No.
T (°C)
2903
B25/100 = 4200 K, R25 = 6800 Ω, TR = 25 °C, ∆RR/RR = ± 10%
Rnom[Ω]
Rmin[Ω]
Rmax[Ω]
∆RR/RR[±%] ∆T[±°C]
α (%/K)
55.0
50.0
45.0
40.0
35.0
816190
560180
389280
273740
194670
607670
424320
299690
213980
154370
1024700
696050
478880
333500
234960
25.5
24.3
23.0
21.8
20.7
3.3
3.3
3.2
3.1
3.1
7.6
7.4
7.2
7.0
6.7
30.0
25.0
20.0
15.0
10.0
139930
101150
73987
54950
41216
112490
82375
60993
45829
34757
167370
119930
86980
64070
47675
19.6
18.6
17.6
16.6
15.7
3.0
2.9
2.9
2.8
2.7
6.5
6.3
6.1
5.9
5.7
5.0
0.0
5.0
10.0
15.0
31042
23602
18105
14007
10927
26454
20317
15735
12286
9668
35629
26887
20475
15728
12185
14.8
13.9
13.1
12.3
11.5
2.7
2.6
2.5
2.4
2.3
5.6
5.4
5.2
5.1
4.9
20.0
25.0
30.0
35.0
40.0
8589
6800
5412
4338
3500
7664
6120
4831
3843
3077
9514
7480
5994
4834
3922
10.8
10.0
10.7
11.4
12.1
2.3
2.2
2.4
2.6
2.9
4.8
4.6
4.5
4.4
4.2
45.0
50.0
55.0
60.0
65.0
2848
2331
1909
1574
1306
2486
2020
1644
1346
1110
3210
2641
2175
1802
1503
12.7
13.3
13.9
14.5
15.0
3.1
3.3
3.6
3.8
4.1
4.1
4.0
3.9
3.8
3.7
70.0
75.0
80.0
85.0
90.0
1090
912.6
767.6
648.2
549.6
919.9
765.5
639.9
537.2
452.8
1260
1060
895.2
759.3
646.4
15.6
16.1
16.6
17.1
17.6
4.3
4.6
4.9
5.2
5.4
3.6
3.5
3.4
3.3
3.2
95.0
100.0
105.0
110.0
115.0
468.6
401.1
344.8
297.4
256.9
383.9
326.7
279.3
239.6
205.9
553.4
475.5
410.2
355.2
307.9
18.1
18.5
19.0
19.4
19.8
5.7
6.0
6.3
6.6
6.9
3.2
3.1
3.0
2.9
2.9
120.0
125.0
222.6
193.9
177.5
153.8
267.7
234.0
20.3
20.7
7.2
7.5
2.8
2.7
Please read Important notes and
Cautions and warnings at the end of this document.
Page 7 of 16
Temperature measurement
B57045
Probe assemblies
K45
B57045K0103K000
R/T No.
T (°C)
2904
B25/100 = 4300 K, R25 = 10000 Ω, TR = 25 °C, ∆RR/RR = ± 10%
Rnom[Ω]
Rmin[Ω]
Rmax[Ω]
∆RR/RR[±%] ∆T[±°C]
α (%/K)
55.0
50.0
45.0
40.0
35.0
1214600
844390
592430
419380
299480
899810
636740
454250
326650
236730
1529400
1052000
730620
512120
362220
25.9
24.6
23.3
22.1
21.0
3.6
3.4
3.3
3.2
3.1
7.3
7.1
7.0
6.9
6.7
30.0
25.0
20.0
15.0
10.0
215670
156410
114660
84510
62927
172890
127050
94315
70351
52981
258460
185760
135000
98669
72872
19.8
18.8
17.7
16.8
15.8
3.0
3.0
2.9
2.8
2.7
6.5
6.3
6.2
6.0
5.8
5.0
0.0
5.0
10.0
15.0
47077
35563
27119
20860
16204
40067
30581
23550
18285
14332
54087
40545
30688
23434
18076
14.9
14.0
13.2
12.3
11.6
2.6
2.6
2.5
2.4
2.3
5.6
5.5
5.3
5.2
5.0
20.0
25.0
30.0
35.0
40.0
12683
10000
7942
6327
5074
11315
9000
7087
5602
4459
14052
11000
8797
7051
5689
10.8
10.0
10.8
11.5
12.1
2.2
2.1
2.3
2.6
2.8
4.9
4.7
4.6
4.5
4.3
45.0
50.0
55.0
60.0
65.0
4103
3336
2724
2237
1846
3579
2889
2343
1910
1566
4627
3783
3106
2563
2126
12.8
13.4
14.0
14.6
15.2
3.0
3.3
3.5
3.8
4.0
4.2
4.1
4.0
3.9
3.8
70.0
75.0
80.0
85.0
90.0
1530
1275
1068
899.3
760.7
1290
1068
888.5
743.7
625.3
1771
1483
1247
1055
896.0
15.7
16.3
16.8
17.3
17.8
4.3
4.5
4.8
5.1
5.3
3.7
3.6
3.5
3.4
3.3
95.0
100.0
105.0
110.0
115.0
645.2
549.4
470.0
403.6
347.4
527.3
446.4
379.8
324.3
277.7
763.2
652.4
560.3
482.9
417.2
18.3
18.7
19.2
19.6
20.1
5.6
5.9
6.2
6.5
6.8
3.2
3.2
3.1
3.0
3.0
120.0
125.0
300.1
260.1
238.5
205.7
361.6
314.5
20.5
20.9
7.1
7.4
2.9
2.8
Please read Important notes and
Cautions and warnings at the end of this document.
Page 8 of 16
Temperature measurement
B57045
Probe assemblies
K45
B57045K0333K000
R/T No.
T (°C)
1012
B25/100 = 4300 K, R25 = 33000 Ω, TR = 25 °C, ∆RR/RR = ± 10%
Rnom[Ω]
Rmin[Ω]
Rmax[Ω]
∆RR/RR[±%] ∆T[±°C]
α (%/K)
55.0
50.0
45.0
40.0
35.0
2878800
2054700
1480200
1075800
788470
2132700
1549400
1134900
837890
623280
3624900
2560000
1825400
1313600
953660
25.9
24.6
23.3
22.1
21.0
3.8
3.7
3.6
3.5
3.4
6.8
6.7
6.5
6.3
6.2
30.0
25.0
20.0
15.0
10.0
582580
432230
323590
245080
187040
467010
351110
266180
204020
157470
698140
513350
381000
286140
216600
19.8
18.8
17.7
16.8
15.8
3.3
3.2
3.1
3.0
2.9
6.0
5.8
5.7
5.5
5.4
5.0
0.0
5.0
10.0
15.0
142600
109590
85279
66786
52330
121370
94234
74056
58543
46285
163840
124940
96503
75029
58375
14.9
14.0
13.2
12.3
11.6
2.8
2.7
2.6
2.5
2.4
5.3
5.1
5.0
4.9
4.8
20.0
25.0
30.0
35.0
40.0
41272
33000
26281
21138
17085
36819
29700
23452
18717
15014
45724
36300
29110
23559
19156
10.8
10.0
10.8
11.5
12.1
2.3
2.2
2.4
2.6
2.9
4.7
4.6
4.4
4.3
4.2
45.0
50.0
55.0
60.0
65.0
13846
11277
9199
7544
6228
12078
9766
7911
6443
5283
15614
12787
10488
8645
7172
12.8
13.4
14.0
14.6
15.2
3.1
3.3
3.5
3.8
4.0
4.1
4.1
4.0
3.9
3.8
70.0
75.0
80.0
85.0
90.0
5163
4294
3585
3007
2531
4351
3596
2983
2487
2081
5974
4992
4186
3527
2982
15.7
16.3
16.8
17.3
17.8
4.2
4.5
4.7
5.0
5.2
3.7
3.6
3.6
3.5
3.4
95.0
100.0
105.0
110.0
115.0
2141
1817
1544
1317
1130
1749
1476
1248
1058
903.4
2532
2157
1841
1576
1357
18.3
18.7
19.2
19.6
20.1
5.5
5.7
6.0
6.3
6.5
3.3
3.3
3.2
3.1
3.1
773.8
664.1
1173
1015
20.5
20.9
6.8
7.1
3.0
3.0
120.0
125.0
973.4
839.8
Please read Important notes and
Cautions and warnings at the end of this document.
Page 9 of 16
Temperature measurement
B57045
Probe assemblies
K45
B57045K0473K000
R/T No.
T (°C)
4003
B25/100 = 4450 K, R25 = 47000 Ω, TR = 25 °C, ∆RR/RR = ± 10%
Rnom[Ω]
Rmin[Ω]
Rmax[Ω]
∆RR/RR[±%] ∆T[±°C]
α (%/K)
55.0
50.0
45.0
40.0
35.0
4879100
3464200
2478000
1785400
1295600
3587600
2594800
1888500
1383100
1019200
6170700
4333700
3067400
2187700
1571900
26.5
25.1
23.8
22.5
21.3
3.9
3.7
3.6
3.5
3.3
6.8
6.7
6.6
6.5
6.4
30.0
25.0
20.0
15.0
10.0
946690
695650
515860
384200
288610
755660
562980
422960
318930
242420
1137700
828330
608770
449460
334810
20.2
19.1
18.0
17.0
16.0
3.2
3.1
3.0
2.9
2.8
6.2
6.1
6.0
5.8
5.7
5.0
0.0
5.0
10.0
15.0
217760
165640
126880
97906
76090
184960
142210
110040
85744
67260
250550
189080
143710
110070
84919
15.1
14.1
13.3
12.4
11.6
2.7
2.6
2.5
2.4
2.3
5.5
5.4
5.3
5.1
5.0
20.0
25.0
30.0
35.0
40.0
59531
47000
36825
29315
23470
53094
42300
32852
25943
20608
65969
51700
40798
32687
26333
10.8
10.0
10.8
11.5
12.2
2.2
2.1
2.3
2.5
2.8
4.9
4.8
4.6
4.5
4.4
45.0
50.0
55.0
60.0
65.0
18903
15302
12409
10118
8316
16471
13234
10654
8625
7040
21334
17370
14164
11611
9592
12.9
13.5
14.1
14.8
15.3
3.0
3.2
3.4
3.7
3.9
4.3
4.2
4.1
4.0
3.9
70.0
75.0
80.0
85.0
90.0
6869
5685
4725
3937
3292
5776
4748
3921
3246
2697
7963
6622
5529
4628
3886
15.9
16.5
17.0
17.6
18.1
4.1
4.4
4.6
4.9
5.1
3.8
3.8
3.7
3.6
3.5
95.0
100.0
105.0
110.0
115.0
2770
2340
1981
1683
1434
2256
1894
1594
1346
1141
3284
2785
2368
2019
1727
18.6
19.0
19.5
20.0
20.4
5.4
5.7
5.9
6.2
6.5
3.4
3.4
3.3
3.2
3.2
120.0
125.0
1225
1050
1481
1273
20.9
21.3
6.7
7.0
3.1
3.0
969.5
826.1
Please read Important notes and
Cautions and warnings at the end of this document.
Page 10 of 16
Temperature measurement
B57045
Probe assemblies
K45
B57045K0683K000
R/T No.
T (°C)
2005
B25/100 = 4600 K, R25 = 68000 Ω, TR = 25 °C, ∆RR/RR = ± 10%
Rnom[Ω]
Rmin[Ω]
Rmax[Ω]
∆RR/RR[±%] ∆T[±°C]
α (%/K)
55.0
50.0
45.0
40.0
35.0
8175000
5812600
4148200
2972400
2139200
5965800
4324200
3142200
2290100
1674800
10384000
7301000
5154200
3654700
2603700
27.0
25.6
24.3
23.0
21.7
4.0
3.8
3.6
3.4
3.3
6.8
6.8
6.8
6.7
6.6
30.0
25.0
20.0
15.0
10.0
1546700
1121300
820800
601490
445030
1229300
904030
670780
497900
372910
1864100
1338600
970820
705080
517160
20.5
19.4
18.3
17.2
16.2
3.2
3.1
3.0
2.9
2.8
6.4
6.3
6.2
6.0
5.9
5.0
0.0
5.0
10.0
15.0
332200
250110
190020
145460
112250
281610
214380
164600
127280
99162
382780
285840
215440
163650
125330
15.2
14.3
13.4
12.5
11.7
2.7
2.6
2.5
2.3
2.2
5.7
5.6
5.5
5.3
5.2
20.0
25.0
30.0
35.0
40.0
87197
68000
53307
42039
33356
77746
61200
47543
37183
29264
96649
74800
59071
46896
37448
10.8
10.0
10.8
11.6
12.3
2.1
2.0
2.3
2.5
2.7
5.1
4.9
4.8
4.7
4.6
45.0
50.0
55.0
60.0
65.0
26599
21332
17230
13984
11398
23152
18424
14769
11899
9629
30046
24240
19691
16070
13168
13.0
13.6
14.3
14.9
15.5
2.9
3.1
3.4
3.6
3.8
4.5
4.3
4.2
4.1
4.1
70.0
75.0
80.0
85.0
90.0
9334
7669
6328
5248
4370
7829
6389
5236
4314
3569
10839
8950
7420
6182
5171
16.1
16.7
17.3
17.8
18.3
4.1
4.3
4.6
4.8
5.1
4.0
3.9
3.8
3.7
3.6
95.0
100.0
105.0
110.0
115.0
3650
3060
2578
2180
1847
2962
2468
2067
1737
1463
4338
3652
3090
2623
2231
18.9
19.4
19.8
20.3
20.8
5.3
5.6
5.8
6.1
6.4
3.5
3.5
3.4
3.3
3.3
120.0
125.0
1569
1338
1236
1048
1903
1628
21.2
21.7
6.6
6.9
3.2
3.1
Please read Important notes and
Cautions and warnings at the end of this document.
Page 11 of 16
Temperature measurement
B57045
Probe assemblies
K45
B57045K0104K000
R/T No.
T (°C)
2005
B25/100 = 4600 K, R25 = 100000 Ω, TR = 25 °C, ∆RR/RR = ± 10%
Rnom[Ω]
Rmin[Ω]
Rmax[Ω]
∆RR/RR[±%] ∆T[±°C]
α (%/K)
55.0
50.0
45.0
40.0
35.0
12022000
8548000
6100400
4371200
3145900
8773300
6359200
4621000
3367900
2462900
15271000
10737000
7579800
5374600
3828900
27.0
25.6
24.3
23.0
21.7
4.0
3.8
3.6
3.4
3.3
6.8
6.8
6.8
6.7
6.6
30.0
25.0
20.0
15.0
10.0
2274600
1649000
1207100
884550
654460
1807900
1329500
986430
732210
548400
2741300
1968500
1427700
1036900
760530
20.5
19.4
18.3
17.2
16.2
3.2
3.1
3.0
2.9
2.8
6.4
6.3
6.2
6.0
5.9
5.0
0.0
5.0
10.0
15.0
488520
367810
279440
213910
165070
414130
315260
242050
187170
145830
562920
420350
316820
240660
184310
15.2
14.3
13.4
12.5
11.7
2.7
2.6
2.5
2.3
2.2
5.7
5.6
5.5
5.3
5.2
20.0
25.0
30.0
35.0
40.0
128230
100000
78393
61822
49053
114330
90000
69916
54681
43036
142130
110000
86870
68964
55071
10.8
10.0
10.8
11.6
12.3
2.1
2.0
2.3
2.5
2.7
5.1
4.9
4.8
4.7
4.6
45.0
50.0
55.0
60.0
65.0
39116
31371
25338
20565
16762
34046
27094
21720
17498
14160
44185
35647
28957
23632
19365
13.0
13.6
14.3
14.9
15.5
2.9
3.1
3.4
3.6
3.8
4.5
4.3
4.2
4.1
4.1
70.0
75.0
80.0
85.0
90.0
13726
11279
9305
7718
6426
11514
9395
7699
6344
5248
15939
13162
10911
9092
7605
16.1
16.7
17.3
17.8
18.3
4.1
4.3
4.6
4.8
5.1
4.0
3.9
3.8
3.7
3.6
95.0
100.0
105.0
110.0
115.0
5368
4500
3792
3206
2716
4356
3629
3039
2555
2152
6380
5370
4544
3858
3281
18.9
19.4
19.8
20.3
20.8
5.3
5.6
5.8
6.1
6.4
3.5
3.5
3.4
3.3
3.3
120.0
125.0
2308
1968
1818
1541
2798
2395
21.2
21.7
6.6
6.9
3.2
3.1
Please read Important notes and
Cautions and warnings at the end of this document.
Page 12 of 16
Temperature measurement
B57045
Probe assemblies
K45
B57045K0154K000
R/T No.
T (°C)
2005
B25/100 = 4600 K, R25 = 150000 Ω, TR = 25 °C, ∆RR/RR = ± 10%
Rnom[Ω]
Rmin[Ω]
Rmax[Ω]
∆RR/RR[±%] ∆T[±°C]
α (%/K)
55.0
50.0
45.0
40.0
35.0
18033000
12822000
9150500
6556900
4718900
13160000
9538700
6931400
5051800
3694300
22906000
16105000
11370000
8061900
5743400
27.0
25.6
24.3
23.0
21.7
4.0
3.8
3.6
3.4
3.3
6.8
6.8
6.8
6.7
6.6
30.0
25.0
20.0
15.0
10.0
3411900
2473400
1810600
1326800
981690
2711800
1994200
1479700
1098300
822600
4112000
2952700
2141500
1555300
1140800
20.5
19.4
18.3
17.2
16.2
3.2
3.1
3.0
2.9
2.8
6.4
6.3
6.2
6.0
5.9
5.0
0.0
5.0
10.0
15.0
732790
551710
419150
320870
247600
621190
472890
363080
280750
218740
844380
630530
475230
360980
276460
15.2
14.3
13.4
12.5
11.7
2.7
2.6
2.5
2.3
2.2
5.7
5.6
5.5
5.3
5.2
20.0
25.0
30.0
35.0
40.0
192350
150000
117590
92733
73580
171500
135000
104870
82021
64554
213200
165000
130310
103450
82606
10.8
10.0
10.8
11.6
12.3
2.1
2.0
2.3
2.5
2.7
5.1
4.9
4.8
4.7
4.6
45.0
50.0
55.0
60.0
65.0
58673
47056
38008
30848
25143
51070
40642
32580
26247
21240
66277
53470
43436
35448
29047
13.0
13.6
14.3
14.9
15.5
2.9
3.1
3.4
3.6
3.8
4.5
4.3
4.2
4.1
4.1
70.0
75.0
80.0
85.0
90.0
20589
16918
13958
11577
9639
17271
14093
11549
9515
7872
23908
19743
16367
13638
11407
16.1
16.7
17.3
17.8
18.3
4.1
4.3
4.6
4.8
5.1
4.0
3.9
3.8
3.7
3.6
95.0
100.0
105.0
110.0
115.0
8052
6749
5688
4809
4074
6534
5443
4559
3832
3227
9569
8056
6816
5787
4921
18.9
19.4
19.8
20.3
20.8
5.3
5.6
5.8
6.1
6.4
3.5
3.5
3.4
3.3
3.3
120.0
125.0
3462
2952
2727
2312
4197
3592
21.2
21.7
6.6
6.9
3.2
3.1
Please read Important notes and
Cautions and warnings at the end of this document.
Page 13 of 16
Temperature measurement
B57045
Probe assemblies
K45
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.
Please read Important notes and
Cautions and warnings at the end of this document.
Page 14 of 16
Temperature measurement
B57045
Probe assemblies
K45
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).
Please read Important notes and
Cautions and warnings at the end of this document.
Page 15 of 16
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 components 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 applications 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 version 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.
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