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15DK, 20DK, 30DK, 40DK, 10KT, 15KT, 20KT, 30KT, 40KT Series
Vishay Cera-Mite
Heavy Duty High Voltage Capacitors
10 TO 40KV MOLDED EPOXY CASE
DK GENERAL PURPOSE TYPE, EIA CLASS III
APPLICATIONS:
High Voltage Power Supplies, CRTs, Lasers.
Smallest Size Available.
KT SPECIAL PURPOSE TYPE, EIA CLASS I
APPLICATIONS:
High Voltage Power Supplies, CRTs, Lasers.
Greater Capacitance Stability.
Features Low DF and Low Heating, Low DC & AC Voltage
Coefficient.
Tighter Tolerance On Capacitance.
Highest AC Voltage Ratings.
PERFORMANCE CHARACTERISTICS:
Operating Temperature Range: -30°C to +85°C
Storage Temperature Range: -40°C to +100°C
Dielectric Strength: 150% of rated voltage, charging
current limited to 50mA.
Insulation Resistance: 200,000 megohms or 1000F
minimum at 25°C.
Corona Limit: 50 picocoulombs at rated AC voltage.
Self Resonant Frequency: Ranges from 50 MHz for small
diameters to 10 MHz for large diameters.
Power Dissipation: Limit to 25°C rise above ambient,
measured on case.
30 KT
20 Series
10
0
-10
-20
-30 DK
Series
-40
-30 25
Temp. (°C)
Typical Applications
85
KT Series ceramic material is
specially designed to handle
AC current, due to low
dissipation factor.
H.V.
CRT
Fig 17
D DIAMETER
SIZE MAX.
CODE in. mm
L
SIZE
LENGTH
MAX.
CODE in. mm
#8-32NC-2B
Tapped
Holes
L
D
NOTE: Screw torque limit:
12 inch pounds. Use
#8-32, 3/16" long screw to
prevent bottoming.
A .880 22.4
B 1.05 26.7
C 1.30 33.0
D 1.55 39.4
E 1.80 45.7
F 2.13 54.1
G 2.30 58.4
H 2.42 61.5
J .780 19.8
K .900 22.9
L 1.00 25.4
M 1.18 30.0
N 1.36 34.5
715C Series
TYPE DK CAPACITOR
Class III Y5U Temp. Coefficient
Cap Tol. +80% - 20%
DF: 2% Max @ 1 kHz
TYPE KT CAPACITOR
Class I N4700 Temp. Coefficient
Cap Tol. ±20%
DF: 0.2% Max @ 1 kHz
15,000 VDC; 4,000 VRMS, 60HZ 10,000 VDC; 4,000 VRMS, 60HZ
CAP CATALOG
SIZE
pF NUMBER D CODE L CODE
1500 15DKD15 B
K
2000 15DKD20 C
K
3300 15DKD33 D
K
4700 15DKD47 D
K
.01 uF 15DKS10 G
K
20,000 VDC; 5,000 VRMS, 60HZ
CAP CATALOG
SIZE
pF NUMBER D CODE L CODE
500 20DKT50 A
L
1000 20DKD10 C
L
1300 20DKD13 C
L
2500 20DKD25 D
L
3300 20DKD33 E
L
4700 20DKD47 F
L
6800 20DKD68 H
L
30,000 VDC; 7,000 VRMS, 60HZ
CAP CATALOG
SIZE
pF NUMBER D CODE L CODE
500 30DKT50
1000 30DKD10
2500 30DKD25
3300 30DKD33
4700 30DKD47
B
C
D
F
G
N
M
M
M
M
40,000 VDC; 9,000 VRMS, 60HZ
CAP CATALOG
SIZE
pF NUMBER D CODE L CODE
300 40DKT30
500 40DKT50
780 40DKT78
1000 40DKD10
1600 40DKD16
2500 40DKD25
3300 40DKD33
A
B
C
D
E
F
G
N
N
N
N
N
N
N
CAP CATALOG SIZE
PF NUMBER D CODE L CODE
1000 10KTD10
2200 10KTD22
3900 10KTD39
4700 10KTD47
C
D
F
G
J
J
J
J
15,000 VDC; 6,000 VRMS, 60HZ
CAP CATALOG
SIZE
pF NUMBER D CODE L CODE
820 15KTT82 C
K
1900 15KTD19 F
K
3300 15KTD33 G
K
20,000 VDC; 8,000 VRMS, 60HZ
CAP CATALOG
SIZE
pF NUMBER D CODE L CODE
560 20KTT56
1000 20KTD10
1900 20KTD19
2700 20KTD27
C
D
F
H
L
L
L
L
30,000 VDC; 10,000 VRMS, 60HZ
CAP CATALOG
SIZE
pF NUMBER D CODE L CODE
400 30KTT40
660 30KTT66
1200 30KTD12
1800 30KTD18
C
D
F
H
M
M
M
M
40,000 VDC; 13,000 VRMS, 60HZ
CAP CATALOG
SIZE
pF NUMBER D CODE L CODE
300 40KTT30 C
N
640 40KTT64 E
N
1000 40KTD10 F
N
1300 40KTD13 H
N
Focus
High Voltage
Ceramic Capacitor
Applications where high dv/dt is present will operate at high
peak currents (Ip = dv/dt x C). Capacitors should be evaluated in
the actual circuit for dv/dt greater than 2000V/ microsecond. If
repetitive, it may be necessary to use a series resistor or other
impedance to limit peak currents to safe values.
TERMINAL ADAPTORS 75-135A
0.437
# 8 - 3 2 N C - 2 B Adapters.
±0.015
Order separately as required.
0.375
0.250
DIA
All tolerances ±0.010 unless specied.
75-134A
0.437
±0.015
0.250
0.250
DIA
NO. 8-32 NC-2B
THD
75-136A
0.437
±0.015
0.312
0.187 FLAT
0.250
DIA
NO. 6-32 NC-2B
THD
0.187 FLAT
NO. 6-32 NC-2B
INT THD
0.187 FLAT
www.vishay.com
30
ceramite.support@vishay.com
Document Number: 23098
Revision 14-May-02

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Document Number: 91000
Revision: 18-Jul-08
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