B57231 EPCOS, B57231 Datasheet - Page 2

• Manufacturer Part Number: B57231
• Description: (B572xx) SMD NTC Thermistors
• Manufacturer: EPCOS

R
10 k
15 k
22 k
33 k
47 k
+: J for R
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
Resistance drift
after soldering
Temperature Measurement
SMD NTC Thermistors with Nickel Barrier Termination, Size 0402
25
K for R
N
N
/R
/R
No. of R/T
characteristic
8503
8503
8503
8503
8503
N
N
=
=
10 %
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
5 %
B
K
4390
4390
4390
4390
4390
Test conditions
Storage at upper
category temperature
T: (125
t: 1000 h
Temperature of air: (40
Relative humidity of air:
(93 +2/–3) %
Duration: 56 days
Lower test temperature: – 55 C
Upper test temperature: 125 C
Number of cycles: 100
P
T: (65
t: 1000 h
Solderability:
(215
(235
Resistance to soldering heat:
(260
Reflow soldering profile
25/50
max
: 150 mW
3) C / (3
5) C / (2
5) C / (10
2) C
2) C
49
B
K
4470
4470
4470
4470
4470
25/85
05/02
0,3) s
0,2) s
1) s
B
K
4500
4500
4500
4500
4500
2) C
25/100
(typical)
< 2 %
< 2 %
< 2 %
< 2 %
< 1 %
R
25
Ordering code
B57231V2103+060
B57231V2153+060
B57231V2223+060
B57231V2333+060
B57231V2473+060
/R
25
Remarks
95 % of
terminations
wetted
B572**
V 2**