NTC thermistors for
inrush current limiting
Leaded and coated disks
Series/Type: B57235S0***M0**
Date: October 2013
EPCOS AG 2015. Reproduction, publication and dissemination of this publication, enclosures hereto and the
information contained therein without EPCOS' prior express consent is prohibited.
EPCOS AG is a TDK Group Company.Inrush current limiters B57235S0***M0**
ICLs S235
Applications Dimensional drawing
Switch-mode power supplies
Features
Useable in series connections up to 265 V
RMS
Coated thermistor disk
Kinked leads of tinned copper wire
Wide resistance range
Small space requirement
Cost-effective
Manufacturer's logo, NTC and resistance value
stamped on
UL approval (E69802)
Options
Dimensions in mm
Resistance tolerance <20% and alternative lead
Approx. weight 0.8 g
configurations available on request
Delivery mode
Bulk (standard) or with cardboard tape on 350-mm reel
General technical data
Climatic category (IEC 60068-1) 55/170/21
Max. power (at 25 C) P 1.8 W
max
Resistance tolerance R /R 20 %
R R
Rated temperature T 25 C
R
Dissipation factor (in air) approx. 9 mW/K
th
Thermal cooling time constant (in air) approx. 60 s
c
Heat capacity C approx. 540 mJ/K
th
Electrical specification and ordering codes
1) 1)
R
R I C C min Ordering code
25 max test test
(@ I , 25 C)
(0...65 C) 230 V AC 110 V AC max
A F F
2.5 5.2 200 800 0.077 B57235S0259M0**
4.7 4.4 200 800 0.102 B57235S0479M0**
5 4.2 200 800 0.110 B57235S0509M0**
6 4.0 200 800 0.125 B57235S0609M0**
8 3.5 200 800 0.156 B57235S0809M0**
10 3.0 200 800 0.206 B57235S0100M0**
** = Delivery mode
00 = Bulk
51 = Reel packing
1) For details on the capacitance C please refer toApplication note, chapter 1.6.
test
Please read Cautions and warnings and Page 2 of 18
Important notes at the end of this document.