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B57421V2102 Datasheet(PDF) 1 Page - EPCOS

Part # B57421V2102
Description  SMD NTC Thermistors with Nickel Barrier Termination, Size 0805
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Manufacturer  EPCOS [EPCOS]
Direct Link  http://www.epcos.com
Logo EPCOS - EPCOS

B57421V2102 Datasheet(HTML) 1 Page - EPCOS

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53
05/02
Applications
I Temperature measurement and compensation in
– mobile phone applications
(e.g. battery pack, TCXO, LCD)
– data systems
– automotive electronics
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 %)
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: 12 000 pcs (on request)
Climatic category (IEC 60068-1)
Max. power at 25
°C (on PCB)
P251)
Resistance tolerance
∆RN/RN
Rated temperature
TN
B value tolerance
∆B/B
Dissipation factor (on PCB)
δth1)
Thermal cooling time constant (on PCB)
τ
c
1)
Heat capacity
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
characteristic
B25/50
K
B25/85
K
B25/100
K
Ordering code
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
* Slimline version 0,9 max.
* available upon request
Dimensions in mm
Approx. weight 13 mg
Termination
1,25±0,15
TNT0421-1-E
1,3 max.*)
1) Depends on mounting situation
B574**
Temperature Measurement
V4**
SMD NTC Thermistors with Nickel Barrier Termination, Size 0805


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