器件名称: FFB16A0686K--
功能描述: Medium Power Film Capacitors
文件大小: 104.54KB 共4页
简 介:Medium Power Film Capacitors
FFB (RoHS Compliant)
The FFB series uses a non-impregnated metallized polypropylene or polyester dielectric with the controlled self-healing process, specially treated to have a very high dielectric strength in operating conditions up to 105°C. The FFB has been designed for printed circuit board mounting. Furthermore, their performances allow to be a very interesting alternative to electrolytic technology because they can withstand much higher levels of surge voltage.
DC FILTERING
APPLICATIONS
The FFB capacitor is particularly designed for DC filtering, low reactive power.
HOT SPOT CALCULATION
See Hot Spot Temperature, page 3. θhot spot = θambient + (Pd + Pt) x Rth with Pd (Dielectric losses) = Q x tgδ0 Q x tgδ0 [ 12 x Cn x (Vpeak to peak)2 x f ] x tgδ0 tgδ0 (tan delta) For polypropylene, tgδ0 = 2 x 10-4 for frequencies up to 1MHz and is independent of temperatures. For polyester, tgδ0 values are shown in graph 4 on page 3. Pt (Thermal losses) = Rs x (Irms)2 where Cn in Farad Irms in Ampere f in Hertz θ in °C V in Volt Rs in Ohm Rth in °C/W
PACKAGING MATERIAL
Self-extinguishing plastic case (V0 = in accordance with UL 94) filled thermosetting resin. Self-extinguishing thermosetting resin (V0 = in accordance with UL 94; I3F2 = in accordance with NF F 16-101).
WORKING TEMPERATURE
(according to the power to be dissipated) -55°C to +105°C
LIFETIME EXPECTANCY
One unique feature of this technology (as opposed to electrolytics) is how the capacito……
