Temperature Measurement
B573**
SMD NTC Thermistors with Nickel Barrier Termination, Size 0603
Applications
V 3**
0,8±0,15
0,9 max.
■ Temperature measurement and compensation in
0,35±0,15
1,6±0,15
– mobile phone applications
(e.g. battery pack, TCXO, LCD)
– data systems
– automotive electronics
Features
■ Multilayer SMD NTC with inner electrodes
■ Ni barrier termination (Ag/Ni/Sn)
■ High accuracy: ± 5 % in resistance,
Termination
TNT0396-Y
Dimensions in mm
Approx. weight 6 mg
B value tolerance down to ± 1,5 % available on request
■ Excellent long-term ageing stability in high-temperature
and high-humidity environment
■ Superior resistance stability during soldering (change < 1 %)
Options
Alternative resistance ratings, resistance tol. < 5 % and B value tol. < 3 % available on request
Delivery mode
Cardboard tape, 180-mm reel, PU: 4000 pcs (standard); 330-mm reel, PU: 16000 pcs (on request)
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
P251)
∆R N/R N
TN
∆B/B
δth1)
τc1)
Cth1)
55/125/56
180
± 5 %, ± 10 %
25
±3%
approx. 3,0
approx. 4,0
approx. 12,0
mW
°C
mW/K
s
mJ/K
No. of R/T
characteristic
B 25/50
K
K
K
47
8501
3470
3540
3550
B57311V2470+060
100
8501
3470
3540
3550
B57311V2101+060
150
8501
3470
3540
3550
B57311V2151+060
220
8501
3470
3540
3550
B57311V2221+060
330
8501
3470
3540
3550
B57311V2331+060
470
8502
3940
3980
4000
B57321V2471+060
680
8502
3940
3980
4000
B57321V2681+060
1,0 k
8502
3940
3980
4000
B57321V2102+060
1,5 k
8502
3940
3980
4000
B57321V2152+060
8502
3940
3980
4000
B57321V2103+060
R 25
Ω
10 k
B25/85
1) Depends on mounting situation
50
05/02
B 25/100
Ordering code
Temperature Measurement
B573**
SMD NTC Thermistors with Nickel Barrier Termination, Size 0603
R 25
B25/85
B 25/100
V 3**
Ordering code
No. of R/T
characteristic
B 25/50
K
K
K
2,2 k
8503
4390
4470
4500
B57331V2222+060
3,3 k
8503
4390
4470
4500
B57331V2332+060
4,7 k
8503
4390
4470
4500
B57331V2472+060
6,8 k
8503
4390
4470
4500
B57331V2682+060
10 k
8503
4390
4470
4500
B57331V2103+060
15 k
8503
4390
4470
4500
B57331V2153+060
22 k
8503
4390
4470
4500
B57331V2223+060
33 k
8503
4390
4470
4500
B57331V2333+060
47 k
8503
4390
4470
4500
B57331V2473+060
68 k
8503
4390
4470
4500
B57331V2683+060
100 k
8503
4390
4470
4500
B57331V2104+060
Ω
+: J for ∆RN/RN = ± 5 %
K for ∆RN/RN = ± 10 %
51
05/02
Temperature Measurement
B573**
SMD NTC Thermistors with Nickel Barrier Termination, Size 0603
V 3**
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
Standard
Test conditions
∆R25/R 25
(typical)
Storage in
dry heat
IEC
60068-2-2
JIS C 0021
Storage at upper
category temperature
T: (125 ± 2) °C
t: 1000 h
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