NTC thermistors for
temperature measurement
SMD NTC thermistors,
EIA case size 0805 (2012), standard series
Series/Type:
Date:
B574**V2/ B57620C5
January 2018
© EPCOS AG 2018. Reproduction, publication and dissemination of this publication, enclosures hereto and the
information contained therein without EPCOS' prior express consent is prohibited.
EPCOS AG is a TDK Group Company.
Temperature measurement and compensation
SMD NTC thermistors, case size 0805 (2012)
B574**V2/ B57620C5
Standard series
Applications
Temperature measurement and
compensation
Features
Multilayer SMD NTC with inner electrodes
Nickel barrier termination
For temperature measurement up to 125
°C
Excellent long-term aging stability in high
temperature environment
High mechanical robustness
Short response time
100% Pb free
UL approval (E69802)
Options
Alternative resistance ratings, resistance
tolerances and B value tolerances available
on request.
Delivery mode
Blister tape, 180-mm reel (standard);
330-mm reel (on request)
General technical data
Operating temperature range
Max. power
Resistance tolerance
Rated temperature
Dissipation factor
Thermal cooling time constant
Heat capacity
Dimensional drawing
Dimensions in mm
Approx. weight 13 mg
T
op
(at 25
°C,
on PCB) P
251)
∆R
R
/R
R
T
R
(on PCB)
δ
th1)
(on PCB)
τ
c1)
C
th1)
55 ... 125
210
±3, ±5
25
approx. 3.5
approx. 10
approx. 35
°C
mW
%
°C
mW/K
s
mJ/K
1) Depends on mounting situation
Please read
Cautions and warnings
and
Important notes
at the end of this document.
Page 2 of 27
Temperature measurement and compensation
SMD NTC thermistors, case size 0805 (2012)
B574**V2/ B57620C5
Standard series
Electrical specification and ordering codes
R
25
Ω
1.0 k
1.5 k
2.2 k
3.3 k
4.7 k
4.7 k
6.8 k
10 k
10 k
10 k
10 k
15 k
22 k
22 k
33 k
33 k
47 k
47 k
100 k
470 k
680 k
∆R
R
/R
R
%
±3, ±5
±3, ±5
±3, ±5
±3, ±5
±3, ±5
±3, ±5
±3, ±5
±3, ±5
±5
±3, ±5
±3, ±5
±5
±3, ±5
±3, ±5
±3, ±5
±3, ±5
±3, ±5
±3, ±5
±3, ±5
±3, ±5
±3, ±5
No. of R/T
characteristic
8502
8502
8502
8502
8500
8507
8507
8500
1011
8502
8507
8502
8502
8507
8502
8507
8502
8507
8507
8507
8507
B
25/50
K
3940
3940
3940
3940
3590
4386
4386
3590
3660
3940
4386
3940
3940
4386
3940
4386
3940
4386
4386
4386
4386
B
25/85
K
3980
3980
3980
3980
3635
4455
4455
3635
3720
3980
4455
3980
3980
4455
3980
4455
3980
4455
4455
4455
4455
B
25/100
K
4000
±3%
4000
±3%
4000
±3%
4000
±3%
3650
±3%
4480
±3%
4480
±3%
3650
±3%
3730
±3%
4000
±3%
4480
±3%
4000
±3%
4000
±3%
4480
±3%
4000
±3%
4480
±3%
4000
±3%
4480
±3%
4480
±3%
4480
±3%
4480
±3%
Ordering code
B57421V2102+062
B57421V2152+062
B57421V2222+062
B57421V2332+062
B57401V2472+062
B57471V2472+062
B57471V2682+062
B57401V2103+062
B57620C5103J062
B57421V2103+062
B57471V2103+062
B57421V2153J062
B57421V2223+062
B57471V2223+062
B57421V2333+062
B57471V2333+062
B57421V2473+062
B57471V2473+062
B57471V2104+062
B57471V2474+062
B57471V2684+062
+ = Resistance tolerance
H =
±3%
J =
±5%
Please read
Cautions and warnings
and
Important notes
at the end of this document.
Page 3 of 27
Temperature measurement and compensation
SMD NTC thermistors, case size 0805 (2012)
B574**V2/ B57620C5
Standard series
Reliability data
SMD NTC thermistors are tested in accordance with IEC 60068. The parts are mounted on a
standardized PCB in accordance with IEC 60539-1.
Test
Storage in
dry heat
Standard
IEC
60068-2-2
JIS C 0021
Test conditions
∆R
25
/R
25
(typical)
< 2%
1)
Remarks
Storage in damp
heat, steady state
Rapid temperature
cycling
Endurance
Solderability
Storage at upper
category temperature
T: (125
±2) °C
t: 1000 h
IEC
Temperature of air: (40
±2) °C
60068-2-78 Relative humidity of air:
JIS C 0022 (93 +2/ 3)%
Duration: 56 days
2)
IEC
Lower test temperature: 55
°C
60068-2-14 Upper test temperature: 125
°C
JIS C 0025 Number of cycles: 100
3)
P
max
: 210 mW
T: (65
±2) °C
t: 1000 h
IEC
Solderability:
60068-2-58 (215
±3) °C,
(3
±0.3)
s
JIS C 0054 (245
±5) °C,
(3
±0.3)
s
Resistance to soldering heat:
(260
±5) °C,
(10
±1)
s
Reflow soldering profile
Wave soldering profile
< 2%
2)
< 2%
3)
< 2%
4)
95% of
terminations
wetted
Resistance drift
after soldering
1)
2)
3)
4)
< 1%
4)
Except B57620C5102+062
∆R
25
/R
25
(typical): < 6%, B57620C5103+062
∆R
25
/R
25
(typical): < 3%
Except B57620C5102+062 and B57620C5103+062 duration: 21 days,
∆R
25
/R
25
(typical): < 3%
Except B57620C5102+062 and B57620C5103+062 number of cycles: 10,
∆R
25
/R
25
(typical): < 3%
Except B57620C5102+062 and B57620C5103+062
∆R
25
/R
25
(typical): < 5%
Please read
Cautions and warnings
and
Important notes
at the end of this document.
Page 4 of 27
Temperature measurement and compensation
SMD NTC thermistors, case size 0805 (2012)
B574**V2/ B57620C5
Standard series
R/T characteristics
R/T No.
T (°C)
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
105.0
110.0
115.0
120.0
125.0
130.0
135.0
140.0
145.0
150.0
1011
8500
8502
B
25/100
= 3730 K
B
25/100
= 3650 K
B
25/100
= 4000 K
R
T
/R
25
α
(%/K) R
T
/R
25
α
(%/K) R
T
/R
25
α
(%/K)
70.014
49.906
36.015
26.296
19.411
14.479
10.903
8.2923
6.3591
4.9204
3.8279
3.0029
2.3773
1.8959
1.5207
1.228
1.0000
0.81779
0.67341
0.55747
0.46357
0.3874
0.32368
0.272
0.23041
0.19604
0.16735
0.14342
0.12347
0.10668
0.092734
0.080903
0.070616
0.061826
0.054282
0.047793
0.042249
6.9
6.7
6.4
6.2
6.0
5.8
5.6
5.4
5.2
5.1
4.9
4.8
4.6
4.5
4.3
4.2
4.1
3.9
3.8
3.7
3.6
3.6
3.5
3.4
3.3
3.2
3.1
3.0
3.0
2.8
2.8
2.8
2.7
2.6
2.6
2.5
2.4
63.917
45.889
33.344
24.504
18.201
13.657
10.347
7.9114
6.1019
4.7454
3.7198
2.938
2.3372
1.8722
1.5096
1.2249
1.0000
0.82111
0.67798
0.56279
0.46958
0.39374
0.33171
0.28073
0.23863
0.2037
0.17459
0.15022
0.12975
0.11247
0.097838
0.085396
0.074781
0.065691
0.057883
0.051153
0.045335
0.040289
0.0359
0.032071
0.028723
0.025786
6.8
6.5
6.3
6.1
5.8
5.6
5.5
5.3
5.1
4.9
4.8
4.6
4.5
4.4
4.2
4.1
4.0
3.9
3.8
3.7
3.6
3.5
3.4
3.3
3.2
3.1
3.0
3.0
2.9
2.8
2.8
2.7
2.6
2.6
2.5
2.4
2.4
2.3
2.3
2.2
2.2
2.1
96.158
66.892
47.127
33.606
24.243
17.681
13.032
9.702
7.2923
5.5314
4.2325
3.2657
2.54
1.9907
1.5716
1.2494
1.0000
0.80552
0.65288
0.53229
0.43645
0.35981
0.29819
0.24837
0.20787
0.17479
0.14763
0.12523
0.10667
0.091227
0.078319
0.067488
0.058363
0.050647
0.044098
0.03852
0.033752
0.029663
0.026146
0.023111
0.020484
0.018203
7.4
7.1
6.9
6.6
6.4
6.2
6.0
5.8
5.6
5.4
5.3
5.1
4.9
4.8
4.7
4.5
4.4
4.3
4.1
4.0
3.9
3.8
3.7
3.6
3.5
3.4
3.3
3.2
3.2
3.1
3.0
2.9
2.9
2.8
2.7
2.7
2.6
2.6
2.5
2.4
2.4
2.3
Please read
Cautions and warnings
and
Important notes
at the end of this document.
Page 5 of 27
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