MATERIAL W (Permeabilität 10.000) Ideal zur Dämpfung unerwünschter HF im Bereich von 0,1-1 MHz in EMI(RFI Filtern. Lieferbar ab Lager als Ringkern.
Material Characteristics FT140-W Property Item Unit/ Symbol Permea-bilität Max. Permeabilität Freq. kHz Resonanz Freq. kHz Breit-band Freq. MHz Drossel Initial Permeability@ B < 10 gauss µi 10.000 ±20% 20.000 1 kHz-250 kHz 1 kHz- 1 MHz 100 kHz -1 MHz Flux Density @ Field Strength Gauss @ 1194 A/m, 15 oe mT B H 4300 430 Mittlere Feld- Linienlänge Oberfläche Volumen Sättigungsflußdichte 10 Oe (Gauß) 4300 89.6 mm² 63.9 mm 5731 mm³ Remanenzflußdichte 10 Oe (Gauß) 900 WaAC 2.65 -- -- -- INDUCTANCE AL value (nH/T²) Test conditions 9085 ± 30% 10 kHz, 0.5 mT (For N = 5, use 0.42 mA), 25°C CORE LOSSES tan δ/ μi Production lot limit Average Test conditions ≤4.1·10¯⁶ ≤3.5·10¯⁶ 10 kHz 0.5 mT, 25ºC ≤60·10¯⁶ ≤50·10¯⁶ 100 kHz Curie Temperature °C Tc >135 Resistivity Ohm-cm Ρ 10² 1×105 Electrical Specifications Bestellnr. Kern-Material Item Unit/Symbol Condition Value (nH/T²) AL-Toleranz FT140-W Ferrit Toroid AL nH/N² @ 10 KHz 2726 ±20% MnZnFe 10 kHz Initial Perm (10 kHz) 10.000 ± 20% Saturation Flux Density (4,700 G at 15 Oe, 25°C) 390 mT, 11.9 A•T/cm Curie Temperature 135°C Maximum Usable Frequency (50% roll-off) ≤0.5 MHz Relative Loss Factor (tan δ/µiac) X10-6, 25°C <7 (10 kHz) Remanence (800 G, 25°C) 80 mT Temp. Koeffizient % / °C (20°C...70°C) 0.4 Resistivity 0.1 Ω-m Density 4.9 g/cm3 Dimensional Tolerances Case mm Min Max Toleranz Weight Gewicht B (Outer Diameter)/mm 36 35.30 36.70 ---- ---- ----- A (Inner Diameter)/mm 23 22.50 23.50 ----- --- --- H (Height)/mm 10 9.73 10.27 ---- --- --
