PTC thermistors as inrush current limiters Leaded disks, uncoated Series/Type: B5975*/ B5977* Date: April 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.Inrush current limiters Leaded disks, uncoated Applications Dimensional drawing Inrush current limiter (charging resistor) for smoothing and DC link capacitors To replace high-power fixed resistors for capacitor charging Features Self-protecting in case of malfunction of short-circuit relay or internal short circuit of capacitor Inrush current limiters are not damaged when directly connected to V even without max additional current limitation Dimensions in mm Marking: Type, manufacturer s logo, reference temperature in C and date code Type w h th max max max YYWW B750 12.5 16.5 5.0 UL approval to UL 1434 with V = 420 V max B751 12.5 16.5 7.0 and V = 380 V (file number E69802) R B752 12.5 16.5 7.0 VDE approval for selected types B753 12.5 16.5 7.0 (licence number 104843 E) B754 12.5 16.5 7.0 RoHS-compatible B755 12.5 16.5 7.0 B770 8.5 12.0 7.0 B771 8.5 12.0 7.0 Delivery mode B772 8.5 12.0 7.0 Cardboard strips B773 8.5 12.0 7.0 General technical data Operating cycles at V (charging of capacitor) N > 50000 cycles max c Switching cycles at V (failure mode) N > 10 cycles max f Operating temperature range (V = 0) T 40/+125 C op Operating temperature range (V = V ) T 20/+85 C max op Electrical specifications and ordering codes V V R R T C Type max link,max R R ref th th Approvals Ordering code (typ.) V AC V DC % C J/K s B750 260 360 25 25 115 1.0 100 X X B59750B0120A070 B751 260 360 50 25 115 1.4 120 X X B59751B0120A070 B752 260 360 80 25 115 1.4 120 X X B59752B0120A070 B753 440 620 120 25 115 1.4 120 X X B59753B0120A070 B754 440 620 150 25 115 1.4 120 X X B59754B0120A070 B755 560 800 500 25 110 1.4 120 X X B59755B0115A070 Please read Cautions and warnings and Page 2 of 12 Important notes at the end of this document.