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EPCOS - (B574xx) Temperature Measurement SMD NTC Thermistors

Numéro de référence B57431
Description (B574xx) Temperature Measurement SMD NTC Thermistors
Fabricant EPCOS 
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B57431 fiche technique
Temperature Measurement
SMD NTC Thermistors with Nickel Barrier Termination, Size 0805
B574**
V 4**
Applications
I Temperature measurement and compensation in
mobile phone applications
(e.g. battery pack, TCXO, LCD)
data systems
automotive electronics
1,25±0,15
1,3 max.*)
Features
I Multilayer SMD NTC with inner electrodes
I Ni barrier termination (AgNiSn)
I High accuracy: ± 5 % in resistance,
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 %)
Termination
TNT0421-1-E
* Slimline version 0,9 max.
* available upon request
Dimensions in mm
Approx. weight 13 mg
Options
Alternative resistance ratings, resistance tol. < 5 % and B value tol. < 3 % available on request
Delivery mode
Blister tape, 180-mm reel, PU: 3000 pcs (standard); 330-mm reel, PU: 12000 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)
RN/RN
TN
B/B
δth1)
τc1)
Cth1)
55/125/56
210
± 5 %, ± 10 %
25
±3%
approx. 3,5
approx. 10,0
approx. 35,0
mW
°C
mW/K
s
mJ/K
R25
No. of R/T
B25/50
B25/85
B25/100
Ordering code
characteristic
KKK
47 8501
3470
3540
3550
B57411V2470+062
100 8501
3470
3540
3550
B57411V2101+062
150 8501
3470
3540
3550
B57411V2151+062
220 8501
3470
3540
3550
B57411V2221+062
330 8501
3470
3540
3550
B57411V2331+062
1) Depends on mounting situation
53 05/02

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