B57238S 509M EPCOS Inc, B57238S 509M Datasheet - Page 9
![NTC Thermistor](/photos/20/4/200463/4733276_sml.jpg)
B57238S 509M
Manufacturer Part Number
B57238S 509M
Description
NTC Thermistor
Manufacturer
EPCOS Inc
Datasheet
1.B57238S0150M000.pdf
(15 pages)
Specifications of B57238S 509M
Thermistor Type
NTC
Resistance
5ohm
Thermistor Tolerance
± 20%
Beta Value (k)
2965
Operating Temperature Range
-55°C To +170°C
Operating Voltage Range
265V
Thermistor Case Style
Radial Lead
No. Of Pins
2
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Wave soldering
Temperature characteristic at component terminal with dual wave soldering
2
The leads meet the requirements of IEC 60068-2-21. They may not be bent closer than 4 mm
from the solder joint on the thermistor body or from the point at which they leave the feed-
throughs. During bending, any mechanical stress at the outlet of the leads must be removed. The
bending radius should be at least 0.75 mm.
Tensile strength:
Bending strength: Test Ub:
Torsional strength: Test Uc: severity 2
Please read Cautions and warnings and
Important notes at the end of this document.
Inrush current limiters
ICLs
Robustness of terminations
Two 90 -bends in opposite directions at a weight of 0.25 kg.
The lead is bent by 90 at a distance of 6 to 6.5 mm from the thermistor body.
The bending radius of the leads should be approx. 0.75 mm. Two torsions of
180 each (severity 2).
Test Ua1:
Leads
0.50 <
0.80 <
0.80 mm = 10.0 N
1.25 mm = 20.0 N
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