SMD NTC thermistors
SMD NTC thermistor, standard series
Series/Type:
Ordering code:
Date:
Version:
B57423V2473H062
2012-07-19
3
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Identification/Classification 2
(header 2 + bottom left header bar):
Ordering code: (top right header bar)
Series/Type: (top right header bar)
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PPD ML PD
2012-07-19
3
Hr. Schrotter
Dr. Dernovsek
Hr. Schlauer
Version aktualisiert
SMD NTC thermistors
SMD NTC thermistor, standard series
B57423V2473H062
EPCOS AG 2012. Reproduction, publication and dissemination of this publication, enclosures hereto and the information
contained therein without EPCOS' prior express consent is prohibited.
SMD NTC thermistors
SMD NTC thermistor, standard series
B57423V2473H062
Applications
Temperature measurement and compensation for
-
charging control of battery packs in portable devices
-
LCDs and power amplifiers in mobile phones, car radio equipment, etc.
-
HDD in computers, digital cameras, DVD recorders
-
air-conditioning and heating control systems
-
LED lighting
Features
-
-
-
EIA case size 0805
Multilayer SMD NTC thermistor with nickel barrier termination (AgNiSn)
Excellent long-term aging stability in high temperature and high humidity environment
Dimensional drawing
1.25±0.15
1.3 max.
2.0±0.2
Termination
0.5±0.25
TNT0473-1
Dimensions in mm
Electrical specifications
Ordering code
Zero-power
resistance
(at 25 °C)
47 kΩ ±3%
B
25/100
B
25/85
B
25/50
B57423V2473H062
4000 K ±1.5%
(3980 K)
(3940 K)
Operating temperature range
Maximum power
Resistance tolerance
Rated temperature
Dissipation factor
Thermal cooling time constant
Heat capacity
Weight of component
1)
T
op
1)
(at 25 °C, on PCB) P
25
∆R
R
/R
R
T
R
1)
(on PCB)
δ
th
1)
(on PCB)
τ
c
1)
C
th
−55
… 125
210
±3
25
approx. 3.5
approx. 10
approx. 35
approx. 13
°C
mW
%
°C
mW/K
s
mJ/K
mg
Depends on mounting situation
PPD ML PD
Please read
Cautions and warnings
and
Important notes
at the end of this document.
Page 2 of 12
2012-07-19
SMD NTC thermistors
SMD NTC thermistor, standard series
B57423V2473H062
Resistance/ temperature characteristic
NTC resistance temperature curve
R/T-curve
8502
R at 25 °C
47000 [ ]
B (25/100)
4000 [K] ±1.5 [%]
47000 [ ] ±3 [%]
R
N
at 25 °C
Temp. [°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
R Nom
[Ω]
4519400
3143900
2215000
1579500
1139400
831020
612510
455990
342740
259980
198930
153490
119380
93561
73864
58723
47000
37860
30685
25018
20513
16911
14015
11673
9770.1
8215.2
6938.8
5886
5013.6
4287.7
3681
3171.9
2743.1
2380.4
2072.6
1810.4
1586.3
R Min
[Ω]
4048100
2835400
2010600
1442700
1046900
767850
568990
425770
321600
245090
188380
145980
114010
89710
71095
56731
45590
36579
29549
24013
19628
16132
13330
11071
9239.5
7747.9
6526.6
5522
4691.7
4002.5
3427.9
2946.9
2542.6
2201.5
1912.7
1667.2
1457.8
R Max
[Ω]
4990800
3452400
2419300
1716300
1231900
894200
656020
486210
363880
274860
209470
161000
124750
97412
76633
60716
48410
39140
31821
26022
21398
17690
14700
12276
10301
8682.6
7350.9
6249.9
5335.6
4572.9
3934.1
3397
2943.5
2559.3
2232.5
1953.7
1714.9
∆
R [±%]
10.4
9.8
9.2
8.7
8.1
7.6
7.1
6.6
6.2
5.7
5.3
4.9
4.5
4.1
3.7
3.4
3
3.4
3.7
4
4.3
4.6
4.9
5.2
5.4
5.7
5.9
6.2
6.4
6.7
6.9
7.1
7.3
7.5
7.7
7.9
8.1
∆
T [±°C]
1.4
1.4
1.3
1.3
1.3
1.2
1.2
1.1
1.1
1.1
1
1
0.9
0.9
0.8
0.8
0.7
0.8
0.9
1
1.1
1.2
1.3
1.4
1.5
1.7
1.8
1.9
2
2.2
2.3
2.4
2.5
2.7
2.8
3
3.1
α
[%/K]
7.4
7.1
6.9
6.6
6.4
6.2
6
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
3.9
3.8
3.7
3.6
3.5
3.4
3.3
3.2
3.2
3.1
3
2.9
2.9
2.8
2.7
2.7
2.6
PPD ML PD
Please read
Cautions and warnings
and
Important notes
at the end of this document.
Page 3 of 12
2012-07-19
SMD NTC thermistors
SMD NTC thermistor, standard series
B57423V2473H062
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
Storage at upper category
temperature
T: (125 ±2) °C
t: 1000 h
Temperature of air: (40 ±2) °C
Relative humidity of air:
(93 +2/–3)%
under zero bias condition
Duration: 56 days
Lower test temperature: -55 °C
Upper test temperature: 125 °C
Number of cycles: 100
P
max
: 210 mW
T: (65 ±2) °C
t: 1000 h
Solderability:
(215 ±3) °C, (3 ±0.3) s
(245 ±5) °C, (2 ±0.2) s
Resistance to soldering heat:
(260 ±5) °C, (10 ±1) s
Resistance drift after
soldering
-
Reflow soldering profile
Wave soldering profile
<1%
∆R
25
/ R
25
(typical)
Remarks
<2%
Storage in damp
heat, steady state
IEC 60068-2-78
JIS C 0022
<2%
Rapid temperature
cycling
Endurance
IEC 60068-2-14
JIS C 0025
-
<2%
<2%
Solderability
IEC 60068-2-58
JIS C 0054
95% of termination
wetted
PPD ML PD
Please read
Cautions and warnings
and
Important notes
at the end of this document.
Page 4 of 12
2012-07-19
SMD NTC thermistors
SMD NTC thermistor, standard series
B57423V2473H062
Mounting instructions
1. Termination
nickel barrier termination (AgNiSn)
Inner electrode
Base layer - silver
Diffusion barrier - nickel
Outer layer - tin
2. Recommended geometry of solder pads
Case size
inch/mm
0805/2012
B
A
[mm]
1.3
B
[mm]
1.2
B
C
[mm]
3.4
A
C
KKE0092-X
3. Requirements for Solderability
- Solderability (test to IEC 60068-2-58):
Preconditioning: Immersion into flux F-SW 32.
Evaluation criterion: Wetting of soldering areas
≥95%.
Solder
SnPb 60/40
SnAg (3.0 … 4.0), Cu (0.5 … 0.9)
Bath temperature (°C)
215
±3
245
±5
Dwell time (s)
3
±0.3
3
±0.3
- Resistance to soldering heat (test to IEC 60068-2-58):
Preconditioning: Immersion into flux F-SW 32.
Evaluation criterion: Leaching of side edges
≤1/3.
Solder
SnPb 60/40
SnAg (3.0 … 4.0), Cu (0.5 … 0.9)
Bath temperature (°C)
260
±5
260
±5
Dwell time (s)
10
±1
10
±1
PPD ML PD
Please read
Cautions and warnings
and
Important notes
at the end of this document.
Page 5 of 12
A
2012-07-19
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