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• All specifications are subject to change without notice.
• Conformity to RoHS Directive: This means that, in conformity with EU Directive 2002/95/EC, lead, cadmium, mercury, hexavalent chromium, and specific
bromine-based flame retardants, PBB and PBDE, have not been used, except for exempted applications.
Issue date: June 2011
Ultra-high Voltage Ceramic Capacitors
FD(Eac: 10 to 25kV) series
Molded type with metal terminals
For distribution lines
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• All specifications are subject to change without notice.
Ultra-high Voltage Ceramic Capacitors
Molded Type with Metal Terminals FD Series
FOR HIGH VOLTAGE POWER CIRCUIT/AC HEAVY DUTY
Temperature range: –30 to +85°C/Capacitance temperature characteristics: Y5P (±10%)
CLASS 2 HIGH DIELECTRIC
Molded from resins that provide outstanding insulation and moisture resistance, these capacitors are ideal for high-voltage power
circuits in electrical power transmission and receiving devices.
FEATURES
• They are compact in size and exhibit excellent low-loss, low-
distortion characteristics.
• Capacitance values are largely unaffected by variations in
applied voltage.
• Internal screw thread design simplifies mounting requirements.
APPLICATIONS
• High voltage surge absorbers, gas circuit breakers in electrical
power transmission and receiving devices, and lightning
arresters.
• Voltage distribution elements in high-voltage measuring devices.
• Impedance matching in transformers and high-voltage AC
circuits.
FD-9AU to FD-16AU FD-18AU to FD-36AU
CAPACITANCE/ELECTRICAL CHARACTERISTICS/DIMENSIONS
∗
PC:Pico coulomb
• In addition to the above, products are available that can be used in SF6 gas without modification (S type: molded with epoxide resin; alumina filler).
Conformity to RoHS Directive
øD L
T
ød
ISO M3
screw thread
ISO M3 internal
screw thread
øD L
T
ød
Internal screw
thread
Part No. Application
Capacitance
(pF)±10%
Withstand
voltage
Erms(kV)
Insulation
resistance
(MΩ)min.
AC corona starting
voltage
Erms(kV) min. [3PC
∗
]
Dimensions (mm)
Internal
screw
øD T L ød
FD-9AU
AC.10kVr.m.s.
100 15 10,000 12 16 15 27 5 ISO M3
FD-10AU 250 15 10,000 12 21 15 27 5 ISO M3
FD-11AU 500 15 10,000 12 28 15 27 5 ISO M3
FD-12AU 1,000 15 10,000 12 38 15 27 5 ISO M3
FD-16AU
AC.13kVr.m.s.
250 20 10,000 16 26 18.5 30.5 5 ISO M3
FD-18AU 500 20 10,000 16 34 23.5 27.5 10 ISO M4
FD-20AU 1,000 20 10,000 16 48 23.5 27.5 15 ISO M5
FD-22AU
AC.20kVr.m.s.
250 30 10,000 24 30 29 33 10 ISO M4
FD-24AU 500 30 10,000 24 40 29 33 15 ISO M5
FD-33AU
AC.25kVr.m.s.
250 40 10,000 32 34 35 39 10 ISO M4
FD-36AU 500 40 10,000 32 48 35 39 15 ISO M5
• Conformity to RoHS Directive: This means that, in conformity with EU Directive 2002/95/EC, lead, cadmium, mercury, hexavalent chromium, and specific
bromine-based flame retardants, PBB and PBDE, have not been used, except for exempted applications.
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• All specifications are subject to change without notice.
TYPICAL CAPACITANCE CHARACTERISTICS
CAPACITANCE vs. TEMPERATURE CHARACTERISTICS
CAPACITANCE vs. AC VOLTAGE CHARACTERISTICS
PRECAUTIONS
(1) During transportation and storage
• Do not transport or store where the capacitor will be exposed to
high temperature or high humidity.
• Do not expose to poisonous gases such as H
2SO4, HCl, or
HNO
3.
• Avoid excessive impact such as that caused by falling.
(2) During operation
• Avoid contact with electrolytes such as perspiration. Do not
touch with bare hands.
• Avoid excessive impact such as that caused by falling.
• Do not apply solder to stud terminals.
• Do not re-machine the terminals.
(3) Usage
• Make sure that the capacitor is not exposed to radiant heat from
chambers or transformers.
50
30
10
–10
–30
–50
–50 0 50 100
Capacitance change rate(%)
Temperature(˚C)
Y5P
1
0
–2
–1
–3
–4
0 50 100 150
Capacitance change rate(%)
Rated voltage(%)
• For more information about products with other capacitance or other data, please contact us.
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