1DFO, 2DFO, 3DFO Series
Vishay Cera-Mite
Low Dissipation Factor Disc Capacitors
APPLICATIONS:
FEATURES
• Fluorescent Ballasts
• Switching Power Supplies • Snubber Networks
• Industrial Electronic Systems
• Ideal for High Voltage Switching to 100 kHz
• Low DF Minimizes Self Heating at High Frequencies.
• Application Voltages: 500, 1000 and 1500 Vac.
• Economical Alternative to Film Capacitors.
GENERAL SPECIFICATIONS
Series:
1DFO
2DFO
3DFO
The 1DFO, 2DFO, and 3DFO Series are designed to operate
up to 500, 1000, and 1500 VRMS, respectively. Their low
dissipation factor (DF) and stable temperature characteristics
are well suited for operation at elevated frequency. Operating
limits are governed by a suggested 30°C maximum case
temperature rise as controlled by applied voltage and
frequency dependent current. Power-rating charts covering
the entire series provide operating guidelines for higher
frequency applications.
Application Voltage: 500 Vrms
1000 Vdc
1000 Vrms
2000 Vdc
2000 Vrms
4000 Vdc
1500 Vrms
3000 Vdc
3000 Vrms
6000 Vdc
Dielectric Strength: 1200 Vrms
2500 Vdc
Dissipation Factor:
0.1% Maximum at 1 kHz and 25°C
125°C
Power Rating: (Note 1) Limit to 30°C Case Temperature Rise
Insulation Resistance: 50,000 MΩ Minimum
Maximum Service Temperature:
1DFO SERIES - LOW DISSIPATION FACTOR
2DFO SERIES - LOW DISSIPATION FACTOR
561C Series
564C Series
Application Range: 500 Vrms; 1000 Vdc
Application Range: 1000 Vrms; 2000 Vdc
D
T
LS
D
T
LS
Catalog Temp Diameter Thickness Lead Space
pF Tol. Number Char. (in / mm) (in / mm) (in / mm)
Value
Catalog
Temp Diameter Thickness Lead Space
Value
pF Tol. Number
Char. (in / mm) (in / mm)
(in / mm)
10
12
J
J
1DF0Q10
1DF0Q12
NP0 .250 (6.4) .156 (4.0)
NP0 .250 (6.4) .156 (4.0)
.250 (6.4)
.250 (6.4)
.250 (6.4)
.250 (6.4)
.250 (6.4)
.250 (6.4)
.250 (6.4)
.250 (6.4)
.250 (6.4)
.250 (6.4)
.250 (6.4)
.250 (6.4)
.250 (6.4)
.250 (6.4)
.250 (6.4)
.250 (6.4)
.250 (6.4)
.250 (6.4)
.250 (6.4)
.250 (6.4)
.250 (6.4)
.250 (6.4)
.250 (6.4)
.250 (6.4)
.250 (6.4)
.250 (6.4)
.250 (6.4)
.250 (6.4)
.250 (6.4)
.250 (6.4)
.250 (6.4)
.250 (6.4)
.250 (6.4)
.250 (6.4)
.375 (9.5)
.375 (9.5)
.375 (9.5)
.375 (9.5)
10
12
J
J
2DF0Q10 NP0 .290 (7.4) .160 (4.1) .250 (6.4)
2DF0Q12 N1500 .290 (7.4) .170 (4.3) .250 (6.4)
2DF0Q15 N2200 .290 (7.4) .185 (4.7) .250 (6.4)
2DF0Q18 N2200 .290 (7.4) .170 (4.3) .250 (6.4)
2DF0Q22 N2200 .290 (7.4) .170 (4.3) .250 (6.4)
2DF0Q27 N1500 .290 (7.4) .220 (5.6) .250 (6.4)
2DF0Q33 N1500 .290 (7.4) .195 (5.0) .250 (6.4)
2DF0Q39 N1500 .290 (7.4) .180 (4.6) .250 (6.4)
2DF0Q47 N1500 .290 (7.4) .170 (4.3) .250 (6.4)
2DF0Q56 N2000 .290 (7.4) .210 (5.3) .250 (6.4)
2DF0Q68 N2000 .290 (7.4) .190 (4.8) .250 (6.4)
2DF0Q82 N2000 .290 (7.4) .175 (4.5) .250 (6.4)
2DF0T10 N2000 .290 (7.4) .170 (4.3) .250 (6.4)
2DF0T12 N2500 .290 (7.4) .185 (4.7) .250 (6.4)
2DF0T15 N2500 .290 (7.4) .170 (4.3) .250 (6.4)
2DF0T18 N2800 .290 (7.4) .185 (4.7) .250 (6.4)
2DF0T22 N2800 .290 (7.4) .170 (4.3) .250 (6.4)
2DF0T27 N2500 .330 (8.4) .170 (4.3) .250 (6.4)
2DF0T33 N2800 .330 (8.4) .185 (4.7) .250 (6.4)
2DF0T39 N2800 .330 (8.4) .175 (4.5) .250 (6.4)
2DF0T47 N2500 .400 (10.2) .170 (4.3) .250 (6.4)
2DF0T56 N2800 .400 (10.2) .185 (4.7) .250 (6.4)
2DF0T68 N2800 .400 (10.2) .170 (4.3) .250 (6.4)
2DF0T82 N2800 .430 (10.9) .175 (4.5) .250 (6.4)
2DF0D10 N2800 .460 (11.7) .170 (4.3) .250 (6.4)
2DF0D12 N2800 .490 (12.5) .170 (4.3) .250 (6.4)
2DF0D15 N2800 .530 (13.5) .170 (4.3) .250 (6.4)
2DF0D18 N2800 .560 (14.2) .170 (4.3) .375 (9.5)
2DF0D22 N2800 .680 (17.3) .180 (4.6) .375 (9.5)
2DF0D23 N2800 .680 (17.3) .175 (4.5) .375 (9.5)
2DF0D24 N2800 .680 (17.3) .175 (4.5) .375 (9.5)
2DF0D25 N2800 .680 (17.3) .170 (4.3) .375 (9.5)
2DF0D27 N2800 .680 (17.3) .170 (4.3) .375 (9.5)
2DF0D33 N2800 .720 (18.3) .170 (4.3) .375 (9.5)
2DF0D39 N2800 .790 (20.1) .170 (4.3) .375 (9.5)
2DF0D47 N2800 .900 (22.9) .180 (4.6) .375 (9.5)
2DF0D56 N2800 .900 (22.9) .170 (4.3) .375 (9.5)
2DF0D68 N2800 .950 (24.1) .170 (4.3) .375 (9.5)
15
J
1DF0Q15 N1500 .250 (6.4) .156 (4.0)
1DF0Q18 N1500 .250 (6.4) .156 (4.0)
1DF0Q22 N1500 .250 (6.4) .156 (4.0)
1DF0Q27 N2200 .250 (6.4) .156 (4.0)
1DF0Q33 N2200 .250 (6.4) .156 (4.0)
1DF0Q39 N2200 .250 (6.4) .156 (4.0)
1DF0Q47 N1500 .250 (6.4) .156 (4.0)
1DF0Q56 N1500 .250 (6.4) .156 (4.0)
1DF0Q68 N1500 .250 (6.4) .156 (4.0)
1DF0Q82 N1500 .250 (6.4) .156 (4.0)
1DF0T10 N2000 .250 (6.4) .156 (4.0)
1DF0T12 N2000 .250 (6.4) .156 (4.0)
1DF0T15 N2000 .250 (6.4) .156 (4.0)
1DF0T18 N2000 .250 (6.4) .156 (4.0)
1DF0T22 N2500 .250 (6.4) .156 (4.0)
1DF0T27 N2500 .250 (6.4) .156 (4.0)
1DF0T33 N2800 .250 (6.4) .156 (4.0)
1DF0T39 N2800 .250 (6.4) .156 (4.0)
1DF0T47 N2800 .290 (7.4) .156 (4.0)
1DF0T56 N2800 .290 (7.4) .156 (4.0)
1DF0T68 N2800 .290 (7.4) .156 (4.0)
1DF0T82 N2800 .290 (7.4) .156 (4.0)
1DF0D10 N2800 .370 (9.4) .156 (4.0)
1DF0D12 N2800 .370 (9.4) .156 (4.0)
1DF0D15 N2800 .405 (10.3) .156 (4.0)
1DF0D18 N2800 .440 (11.2) .156 (4.0)
1DF0D22 N2800 .460 (11.7) .156 (4.0)
1DF0D23 N2800 .460 (11.7) .156 (4.0)
1DF0D24 N2800 .460 (11.7) .156 (4.0)
1DF0D25 N2800 .460 (11.7) .156 (4.0)
1DF0D27 N2800 .490 (12.5) .156 (4.0)
1DF0D33 N2800 .530 (13.5) .156 (4.0)
1DF0D39 N2800 .560 (14.2) .156 (4.0)
1DF0D47 N2800 .630 (16.0) .156 (4.0)
1DF0D56 N2800 .680 (17.3) .156 (4.0)
1DF0D68 N2800 .760 (19.3) .156 (4.0)
15
J
18
J
18
J
22
J
22
J
27
J
27
J
33
J
33
J
39
J
39
J
47
J
47
J
56
J
56
J
68
J
68
J
82
J
82
J
100
120
150
180
220
270
330
390
470
560
680
820
1000
1200
1500
1800
2200
2300
2400
2500
2700
3300
3900
4700
5600
6800
K
K
K
K
K
K
K
K
K
K
K
K
K
K
K
K
K
K
K
K
K
K
K
K
K
K
100
120
150
180
220
270
330
390
470
560
680
820
1000
1200
1500
1800
2200
2300
2400
2500
2700
3300
3900
4700
5600
6800
K
K
K
K
K
K
K
K
K
K
K
K
K
K
K
K
K
K
K
K
K
K
K
K
K
K
Note 3
Note 3
Note 1
Note 2
Power ratings are based on still air 60°C ambient with additional 30°C rise
due to self heating. Thermal effects such as forced air cooling, component
encapsulation or other heat-sinking techniques will alter ratings. Actual
circuit test is recommended.
For convenience, power rating charts are shown to 100 kHz. Higher
frequency operation is permissible with appropriate derating.
Consult factory for application suggestions.
Document Number: 23093
Revision 14-May-02
www.vishay.com
23
ceramite.support@vishay.com
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