Overload Protection B599*5 Disks C 915 C 995 30 V, 120 C Applications Overcurrent and short-circuit protection Features Coated thermistor disk Manufacturers logo and type designation stamped on in white Low resistance For rated currents of up to 2,5 A UL approval (E69802) Options Dimensions (mm) Leadless disks and leaded disks without Type b dh max max coating available upon request C 915 26,0 0,8 29,5 Thermistors with diameter b 11,0 mm C 935 22,0 0,6 25,5 are also available on tape C 945 17,5 0,6 21,0 C 955 13,5 0,6 17,0 C 965 11,0 0,6 14,5 C 975 9,0 0,6 12,5 C 985 6,5 0,6 10,0 C 995 4,0 0,5 7,5 Max. operating voltage (T = 60 C) V 30 V A max Rated voltage V 24 V N Switching cycles (typ.) N 100 Switching time t 10 s S Reference temperature T 120 C Ref Resistance tolerance R 25 % N Operating temperature range (V = 0) T 40/+ 125 C op (V = V ) T 0/60 C max op Type I I I I R R Ordering code N S Smax r N min (V=V ) (V=V ) max max mA mA A mA C 915 2500 5000 15,0 220 0,2 0,1 B59915-C120-A70 C 935 1800 3600 10,0 170 0,3 0,2 B59935-C120-A70 C 945 1300 2600 8,0 115 0,45 0,3 B59945-C120-A70 C 955 850 1700 5,5 80 0,8 0,5 B59955-C120-A70 C 965 600 1200 4,3 70 1,2 0,7 B59965-C120-A70 C 975 450 900 3,0 60 1,8 1,1 B59975-C120-A70 C 985 250 500 1,0 45 4,6 2,7 B59985-C120-A70 C 995 120 240 0,7 25 13 7,8 B59995-C120-A70 44 Siemens Matsushita ComponentsB599*5 C 915 C 995 Characteristics (typical) PTC resistance R versus PTC current I versus PTC voltage V PTC PTC PTC PTC temperature T (measured at 25 C in still air) PTC (measured at low signal voltage) Switching time t versus switching current I Rated current I versus ambient temperature T S S N A (measured at 25 C in still air) (measured in still air) Siemens Matsushita Components 45