B57235S0509M00 TDK

NTC thermistors for inrush current limiting Leaded and coated disks Series/Type: B57235S0***M0** Date: December 2011 EPCOS AG 2011. Reproduction, publication and dissemination of this publication, enclosures hereto and the information contained therein without EPCOS' prior express consent is prohibited.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 UL approval (E69802) Dimensions in mm Options Approx. weight 0.8 g Resistance tolerance <20% and alternative lead 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 I B C C Param. Param. Ordering code 25 max 25/100 test test 1) 1) (0...65 C) 230 V AC 110 V AC for R(I) for R(I) A K F F k n 4.7 4.4 2800 200 800 0.700 1.30 B57235S0479M0** 5 4.2 2800 200 800 0.710 1.30 B57235S0509M0** 6 4.0 2800 200 800 0.757 1.30 B57235S0609M0** 8 3.5 2900 200 800 0.814 1.32 B57235S0809M0** 10 3.0 2900 200 800 0.879 1.32 B57235S0100M0** ** = Delivery mode 00 = Bulk 51 = Reel packing 1) For details on the capacitance C as well as on the parameters k and n refer toApplication note, chapters 1.6 and 1.7. test Please read Cautions and warnings and Page 2 of 14 Important notes at the end of this document.