Overload Protection Disks B599*5 C 915 … C 995 30 V, 120 °C 3,5 max. b Applications h ● Overcurrent and short-circuit protection Features ● ● ● ● 35 min. ● Coated thermistor disk ● Manufacturer’s logo and type designation stamped on in white Low resistance For rated currents of up to 2,5 A UL approval (E69802) VDE approval (exception: C915) ød 5 TPT0647-V Dimensions (mm) Options coating available upon request ● Thermistors with diameter b ≤ 11,0 mm are also available on tape Max. operating voltage (TA = 60 °C) Rated voltage Switching cycles (typ.) Switching time at Vmax, ISmax Reference temperature (typ.) Resistance tolerance Operating temperature range (V = 0) (V = Vmax) Type IN IS C 915 C 935 C 945 C 955 C 965 C 975 C 985 C 995 mA 2500 1800 1300 850 600 450 250 120 mA 5000 3600 2600 1700 1200 900 500 240 46 ISmax (V=Vmax) A 15,0 10,0 8,0 5,5 4,3 3,0 1,0 0,7 bmax 26,0 22,0 17,5 13,5 11,0 9,0 6,5 4,0 Type C 915 C 935 C 945 C 955 C 965 C 975 C 985 C 995 ● Leadless disks and leaded disks without Vmax VN N tS TRef ∆R N Top Top Ir (typ.) (V=Vmax) mA 220 170 115 80 70 60 45 25 30 12, 24 100 ≤ 10 120 ± 25 % – 40/+ 125 0/60 Ir (typ.) RN (V=12 V) mA Ω 490 0,2 380 0,3 250 0,45 175 0,8 150 1,2 130 1,8 100 4,6 54 13 ∅d 0,8 0,6 0,6 0,6 0,6 0,6 0,6 0,5 hmax 29,5 25,5 21,0 17,0 14,5 12,5 10,0 7,5 V V s °C °C °C Rmin Ordering code Ω 0,1 0,2 0,3 0,5 0,7 1,1 2,7 7,8 B59915-C120-A70 B59935-C120-A70 B59945-C120-A70 B59955-C120-A70 B59965-C120-A70 B59975-C120-A70 B59985-C120-A70 B59995-C120-A70 Siemens Matsushita Components B599*5 C 915 … C 995 Characteristics (typical) PTC resistance RPTC versus PTC temperature TPTC (measured at low signal voltage) PTC current IPTC versus PTC voltage VPTC (measured at 25 °C in still air) Switching time tS versus switching current IS (measured at 25 °C in still air) Rated current IN versus ambient temperature TA (measured in still air) Siemens Matsushita Components 47 B599*5 C 915 … C 995 Characteristics (typical) PTC resistance RPTC versus PTC temperature TPTC (measured at low signal voltage) PTC current IPTC versus PTC voltage VPTC (measured at 25 °C in still air) Switching time tS versus switching current IS (measured at 25 °C in still air) Rated current IN versus ambient temperature TA (measured in still air) 48 Siemens Matsushita Components