Medium Power Film Capacitors
FD Design
GENERAL DESCRIPTION
FD series use metallized dielectric, controlled self-healing
technology, high specific energy.
USUAL APPLICATIONS
The FD capacitors are designed for discharge applications
such as Laser, electronic flash, cardiac defibrillator, etc.
FD series offer a very high specific energy level, higher than
1500J per liter for cardiac defibrillator application.
Operating temperature:
Storage temperature:
Capacitance range:
Capacitance tolerance:
Nominal charging voltage:
Test voltage between terminals:
Test voltage between
terminals and earth:
DISCHARGE
ELECTRICAL CHARACTERISTICS
–55°C to +85°C
–55°C to +85°C
5µF to 150µF
other values on request
±10%
1kV to 3kV
higher voltage on request
@ 25°C: 1.2 x UNdc during 10s
@ 25°C: 2 UNdc during 1 min (type test)
HOT SPOT CALCULATION
For all applications the temperature in the hot spot capacitor must be lower than 85°C
θhot spot = θambient + (tgδ0 x Q + RsIrms2) x Rth
with tgδ0 = 2.10-4 Q in Vars Rs in Ohm
Irms in Ampere
Rth in °C/W
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