B57221V2103060 Просмотр технического описания (PDF) - EPCOS AG
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B57221V2103060 Datasheet PDF : 3 Pages
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Temperature Measurement
SMD NTC Thermistors with Nickel Barrier Termination, Size 0402
B572**
V 2**
R25
No. of R/T
characteristic
Ω
10 k
8503
15 k
8503
22 k
8503
33 k
8503
47 k
8503
+: J for ∆RN/RN = ± 5 %
K for ∆RN/RN = ± 10 %
B25/50
K
4390
4390
4390
4390
4390
B25/85
K
4470
4470
4470
4470
4470
B25/100
K
4500
4500
4500
4500
4500
Ordering code
B57231V2103+060
B57231V2153+060
B57231V2223+060
B57231V2333+060
B57231V2473+060
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
Storage in damp
heat, steady state
Rapid temperature
cycling
Endurance
Solderability
Standard
IEC
60068-2-2
JIS C 0021
IEC
60068-2-3
JIS C 0022
IEC
60068-2-14
JIS C 0025
IEC
60068-2-58
JIS C 0054
Test conditions
∆R25/R25
(typical)
Storage at upper
category temperature
T: (125 ± 2) °C
t: 1000 h
<2%
Temperature of air: (40 ± 2) °C
Relative humidity of air:
(93 +2/–3) %
Duration: 56 days
<2%
Lower test temperature: – 55 °C < 2 %
Upper test temperature: 125 °C
Number of cycles: 100
Pmax: 150 mW
T: (65 ± 2) °C
t: 1000 h
<2%
Solderability:
(215 ± 3) °C / (3 ± 0,3) s
(235 ± 5) °C / (2 ± 0,2) s
Remarks
95 % of
terminations
wetted
Resistance drift
after soldering
Resistance to soldering heat:
(260 ± 5) °C / (10 ± 1) s
Reflow soldering profile
<1%
49 05/02
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