PTC thermistors as limit temperature sensors SMD, EIA case sizes 0402, 0603 and 0805, superior series Series/Type: B59421, B59641, B59721 Date: March 2014 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.Sensors Limit temperature sensors, EIA sizes 0402, 0603 and 0805 Superior series Applications Over-temperature protection of power components DC/DC converters SMPS Notebooks Home appliances Dimmers Electronic ballasts Automotive electronics Secondary protection of battery packs Features Qualification based on AEC-Q200 rev. D Reflow soldering only Fast and reliable response RoHS-compatible UL approval to UL1434 Certified in accordance with IEC 60738-1 and IEC 60730-1 Annex J15 and J17 Lead-free terminations (tinned) for case sizes 0603 and 0805 Lead-free ceramics for case sizes 0402 and 0805 Options Other T or resistance values on request sense Delivery mode Blister tape (case size 0805) or cardboard tape (case sizes 0402 and 0603), 180-mm reel with 8-mm tape, taping to IEC 60286-3 Packing unit: 10.000 pcs. (case size 0402), 4.000 pcs. (case size 0805 and 0603) General technical data Max. operating voltage V 32 V DC max Minimum operating temperature (V V ) T 40 C max min Maximum operating temperature (V V ) T 125 C or T +25 C C max max sense,1 whichever is higher Please read Cautions and warnings and Page 2 of 24 Important notes at the end of this document.