Temperature Measurement
SMD NTC Thermistors with Nickel Barrier Termination, Size 0402
SMD NTC thermistors with nickel barrier termination
Applications
I
Temperature measurement and compensation in
B572**
V 2**
0,6 max.
0,5±0,05
Features
I
Multilayer SMD NTC with inner electrodes
I
Ni barrier termination (Ag/Ni/Sn)
I
High accuracy:
±
5 % in resistance,
Termination
0,25±0,15
– mobile phone applications (e.g. battery pack, TCXO, LCD)
– data systems
– automotive electronics
1,0±0,1
TNT0395-Q
B
value tolerance down to
±
1,5 % available on request
I
Excellent long-term ageing stability in high-temperature
and high-humidity environment
I
Superior resistance stability during soldering (change < 1 %)
Options
Dimensions in mm
Approx. weight 4,5 mg
Alternative resistance ratings, resistance tol.
<
5 % and
B
value tol. < 3 % available on request
Delivery mode
Cardboard tape, 180-mm reel, PU: 10000 pcs
Climatic category (IEC 60068-1)
Max. power at 25
°
C (on PCB)
Resistance tolerance
Rated temperature
B
value tolerance
Dissipation factor (on PCB)
Thermal cooling time constant (on PCB)
Heat capacity
R
25
No. of
R/T
characteristic
8501
8501
8501
8501
8501
8502
8502
8502
8502
8502
8502
B
25/50
K
3470
3470
3470
3470
3470
3940
3940
3940
3940
3940
3940
P
25
1)
∆
R
N
/R
N
T
N
∆
B/B
δ
th
1)
τ
c
1)
C
th
1)
B
25/85
K
3540
3540
3540
3540
3540
3980
3980
3980
3980
3980
3980
55/125/56
150
±
5 %,
±
10 %
25
±
3%
approx. 2,5
approx. 3,0
approx. 7,5
B
25/100
K
3550
3550
3550
3550
3550
4000
4000
4000
4000
4000
4000
B57211V2101+060
B57211V2151+060
B57211V2221+060
B57211V2331+060
B57211V2471+060
B57221V2102+060
B57221V2152+060
B57221V2222+060
B57221V2332+060
B57221V2472+060
B57221V2103+060
mW
°
C
mW/K
s
mJ/K
Ordering code
Ω
100
150
220
330
470
1,0 k
1,5 k
2,2 k
3,3 k
4,7 k
10 k
1) Depends on mounting situation
48
05/02
Temperature Measurement
SMD NTC Thermistors with Nickel Barrier Termination, Size 0402
B572**
V 2**
R
25
No. of
R/T
characteristic
8503
8503
8503
8503
8503
B
25/50
K
4390
4390
4390
4390
4390
B
25/85
K
4470
4470
4470
4470
4470
B
25/100
K
4500
4500
4500
4500
4500
Ordering code
Ω
10 k
15 k
22 k
33 k
47 k
B57231V2103+060
B57231V2153+060
B57231V2223+060
B57231V2333+060
B57231V2473+060
+: J for
∆
R
N
/R
N
=
±
5 %
K for
∆
R
N
/R
N
=
±
10 %
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
IEC
60068-2-3
JIS C 0022
IEC
60068-2-14
JIS C 0025
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) %
Duration: 56 days
∆
R
25
/R
25
(typical)
<2%
Remarks
Storage in damp
heat, steady state
<2%
Rapid temperature
cycling
Endurance
Lower test temperature: – 55
°
C < 2 %
Upper test temperature: 125
°
C
Number of cycles: 100
P
max
: 150 mW
T:
(65
±
2)
°
C
t:
1000 h
<2%
Solderability
IEC
60068-2-58
JIS C 0054
Solderability:
(215
±
3)
°
C / (3
±
0,3) s
(235
±
5)
°
C / (2
±
0,2) s
Resistance to soldering heat:
(260
±
5)
°
C / (10
±
1) s
95 % of
terminations
wetted
Resistance drift
after soldering
Reflow soldering profile
<1%
49
05/02
Herausgegeben von EPCOS AG
Unternehmenskommunikation, Postfach 80 17 09, 81617 München, DEUTSCHLAND
++49 89 636 09, FAX (0 89) 636-2 26 89
(
EPCOS AG 2002. Vervielfältigung, Veröffentlichung, Verbreitung und Verwertung dieser Broschüre und ihres Inhalts ohne aus-
drückliche Genehmigung der EPCOS AG nicht gestattet.
Bestellungen unterliegen den vom ZVEI empfohlenen Allgemeinen Lieferbedingungen für Erzeugnisse und Leistungen der Elek-
troindustrie, soweit nichts anderes vereinbart wird.
Diese Broschüre ersetzt die vorige Ausgabe.
Fragen über Technik, Preise und Liefermöglichkeiten richten Sie bitte an den Ihnen nächstgelegenen Vertrieb der EPCOS AG
oder an unsere Vertriebsgesellschaften im Ausland. Bauelemente können aufgrund technischer Erfordernisse Gefahrstoffe ent-
halten. Auskünfte darüber bitten wir unter Angabe des betreffenden Typs ebenfalls über die zuständige Vertriebsgesellschaft ein-
zuholen.
Published by EPCOS AG
Corporate Communications, P.O. Box 80 17 09, 81617 Munich, GERMANY
++49 89 636 09, FAX (0 89) 636-2 26 89
EPCOS AG 2002. Reproduction, publication and dissemination of this brochure and the information contained therein without
EPCOS’ prior express consent is prohibited.
Purchase orders are subject to the General Conditions for the Supply of Products and Services of the Electrical and Electronics
Industry recommended by the ZVEI (German Electrical and Electronic Manufacturers’ Association), unless otherwise agreed.
This brochure replaces the previous edition.
For questions on technology, prices and delivery please contact the Sales Offices of EPCOS AG or the international Representa-
tives.
Due to technical requirements components may contain dangerous substances. For information on the type in question please
also contact one of our Sales Offices.
(
国产芯片交流
