53 05/02
Applications
■ Temperature measurement and compensation in
– mobile phone applications
(e.g. battery pack, TCXO, LCD)
– data systems
– automotive electronics
Features
■ Multilayer SMD NTC with inner electrodes
■ Ni barrier termination (AgNiSn)
■ High accuracy: ± 5 % in resistance,
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
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) P
25
1)
Resistance tolerance ∆R
N
/R
N
Rated temperature T
N
B value tolerance ∆B/B
Dissipation factor (on PCB)
δ
th
1)
Thermal cooling time constant (on PCB) τ
c
1)
Heat capacity C
th
1)
55/125/56
210
± 5 %, ± 10 %
25
± 3 %
approx. 3,5
approx. 10,0
approx. 35,0
mW
°C
mW/K
s
mJ/K
R
25
Ω
No. of R/T
characteristic
B
25/50
K
B
25/85
K
B
25/100
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
0,5±0,25
1,25±0,15
2,0±0,2
TNT0421-1-E
1,3 max.
*)
1) Depends on mounting situation
B574**Temperature Measurement
V4**
SMD NTC Thermistors with Nickel Barrier Termination, Size 0805
