B57431 EPCOS, B57431 Datasheet - Page 3

• Manufacturer Part Number: B57431
• Description: (B574xx) Temperature Measurement SMD NTC Thermistors
• Manufacturer: EPCOS

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 0805
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
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
Wave soldering profile
max
: 210 mW
3) C / (3
5) C / (2
5) C / (10
2) C
2) C
55
05/02
0,3) s
0,2) s
1) s
2) C
(typical)
< 2 %
< 2 %
< 2 %
< 2 %
< 1 %
R
25
/R
25
Remarks
95 % of
terminations
wetted
B574**
V 4**