B57237S 220M 51 TDK

NTC thermistors for inrush current limiting Leaded and coated disks Series/Type: B57237S0***M0** Date: November 2015 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 Inrush current limiting, e.g. in switch-mode power supplies, soft-start motors Features Leaded and coated NTC thermistors Tinned copper wire, kinked Coating material flame retardant to UL 94 V-0 Component marking includes the manufacturer s logo, resistance value and date code Highly stable electrical characteristics Approvals UL 1434 (file number E69802) IEC (certificate number 101QA12) VDE (certificate number 40038223) Dimensions in mm CQC (0900104539) Approx. weight 2 g Options Resistance tolerance <20% and alternative lead configurations available on request Delivery mode Bulk (standard), cardboard tape on reel or Ammo pack 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 Please read Cautions and warnings and Page 2 of 21 Important notes at the end of this document.