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2322-663-91002
2322 66. 5...2 Vishay BCcomponents 145 V PTC Thermistors For Overload Protection FEATURES • Wide range of trip and non-trip currents: from 47 mA up to 1 A for the trip current • Wide range of resistance: from 1.3 Ω up to 240 Ω • Small ratio between trip and non-trip currents (It/Int = 1.5 at 25 °C) • High maximum inrush current • Excellent long term behaviour, also in humidity • Leaded parts withstand mechanical stresses and vibration • UL file E148885 according to XGPU standard UL1434 • UL approved PTCs are guaranteed to withstande severe test programmes • Long-life cycle tests (over 5000 trip cycles) • Long-life storage tests (3000 hours at 250°C • Electrical cycle tests at low ambient temperatures (- 40°C or 0°C) • Damp-heat and water immersion tests • Overvoltage tests at up to 200% of rated voltage APPLICATIONS • Telecommunications • Automotive systems • Industrial electronics • Consumer electronics • Electronic data processing. DESCRIPTION These directly heated thermistors have a positive temperature coefficient and are primarily intended for overload protection. They consist of a naked disc with two tinned brass or copper clad steel leads and coated. Leadless disks and leaded disks without coating are available on request. MOUNTING QUICK REFERENCE DATA PARAMETER VALUE UNIT The PTC Thermistors are suitable for processing on automatic insertion equipment. Switch temperature 140 °C Soldering < 240 °C; duration < 5 s. Maximum voltage (RMS) 145 V Resistamnce to heat < 260 °C; duration < 5 s. 0 to 70 °C Temperature range Climatic category Document Number: 29086 Revision: 03-Aug-04 25/125/56 MARKING Only the grey lacquered thermistors with a diameter of 8.5 to 20.5 mm are marked with BC, R25 value (example 1R9) on one side and Int, Vmax on the other side. For technical questions contact: nlr.europe@vishay.com www.vishay.com 1
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