Medium Power Film Capacitors
FFV3 (RoHS Compliant)
The 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 oper-
ating conditions up to 105°C.
The FFV3 has been designed for printed circuit board mounting.
DC FILTERING
APPLICATIONS
The FFV3 capacitors are particularly designed for DC filter-
ing, low reactive power.
STANDARDS
IEC 61071-1, IEC 61071-2: Power electronic capacitors
IEC 60384-16: Fixed metallized polypropylene
film dielectric DC capacitors
IEC 60384-16-1: Fixed metallized polypropylene
film dielectric DC capacitors
Assessment level E
IEC 60384-17: Fixed metallized polypropylene
film dielectric AC and pulse
capacitors
IEC 60384-17-1: Fixed metallized polypropylene
film dielectric AC and pulse
capacitors
Assessment level E
IEC 60384-2: Fixed metallized polyester
capacitors
LIFETIME EXPECTANCY
One unique feature of this technology (as opposed to elec-
trolytics) is how the capacitor reacts at the end of its lifetime.
Unlike aluminum, electrolytics film capacitors do not have a
catastrophic failure mode. Film capacitors simply experience
a parametric loss of capacitance of about 2%, with no risk of
short circuit.
Please note that this is theoretical, however, as the capacitor
continues to be functional even after this 2% decrease.
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).
HOT SPOT CALCULATION
See Hot Spot Temperature, page 3.
θhot spot = θambient + (Pd+ Pt) x (Rth + 7.4)
θhot spot = θcase + (Pd+ Pt) x Rth
with Pd(Dielectric losses) = Q x tgδ0
⇒ [ 1⁄2x Cnx (Vpeak to peak)2x 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) = Rsx (Irms)2
where Cnin Farad Irms in Ampere f in Hertz
Vin Volt R
sin Ohm θin °C
Rth in °C/W Rth : Rth case/hot spot in °C/W
DC FILTERING
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