B57237S479M TDK

NTC thermistors for inrush current limiting Leaded and coated disks Series/Type: B57237S0***M0** Date: May 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 B57237S0***M0** ICLs S237 Applications Dimensional drawing Switch-mode power supplies Soft-start motors, e.g. in vacuum cleaners Features Useable in series connections up to 265 V RMS Coated thermistor disk Kinked leads of tinned copper wire Wide resistance range Manufacturer s logo, NTC and resistance value stamped on Dimensions in mm UL approval (E69802) Approx. weight 2 g Options Resistance tolerance <20% and alternative lead configurations available on request Delivery mode Bulk (standard) or with cardboard tape on 500-mm reel General technical data Climatic category (IEC 60068-1) 55/170/21 Max. power (at 25 C) P 3.1 W max Resistance tolerance R /R 20 % R R Rated temperature T 25 C R Dissipation factor (in air) approx. 17 mW/K th Thermal cooling time constant (in air) approx. 90 s c Heat capacity C approx. 1530 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...25 C) 230 V AC 110 V AC max A F F 1 9.0 700 2800 0.038 B57237S0109M0** 2.2 7.0 700 2800 0.064 B57237S0229M0** 2.5 6.5 700 2800 0.074 B57237S0259M0** 4.7 5.1 700 2800 0.120 B57237S0479M0** 5 5.0 700 2800 0.125 B57237S0509M0** 7 4.2 700 2800 0.172 B57237S0709M0** ** = 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 20 Important notes at the end of this document.