NTC thermistors for inrush current limiting Leaded and coated disks, P11 series Series/Type: B57211P0***M3*1 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 B57211P0***M3*1 ICLs P11 Applications Dimensional drawing For peripheral communication equipment, e.g. in swich-mode power supplies Features Black coated thermistor disk Coating material flame retardant to UL 94 V-0 Kinked leads of tinned copper wire Lead spacing 7.5 mm Manufacturer s logo, NTC and resistance value stamped on High stability of electrical characteristic UL approval (E69802) Options Resistance tolerance <20% and alternative lead configurations available on request Dimensions in mm Delivery mode Approx. weight 1.2 g Bulk (standard) or with cardboard tape on 500-mm reel General technical data Climatic category (IEC 60068-1) 40/170/21 Max. power (at 25 C) P 3.0 W max Resistance tolerance R /R 20 % R R Rated temperature T 25 C R Dissipation factor (in air) approx. 13 mW/K th Thermal cooling time constant (in air) approx. 70 s c Heat capacity C approx. 910 mJ/K th Please read Cautions and warnings and Page 2 of 20 Important notes at the end of this document.