Document Number: 23098
Revision 14-May-02
www.vishay.com
30
15DK, 20DK, 30DK, 40DK, 10KT, 15KT, 20KT, 30KT, 40KT Series
Vishay Cera-Mite
ceramite.support@vishay.com
L
LENGTH
SIZE
MAX.
CODE
in. mm
J
.780
19.8
K
.900
22.9
L
1.00
25.4
M
1.18
30.0
N
1.36
34.5
D
DIAMETER
SIZE
MAX.
CODE
in.
mm
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
TERMINAL ADAPTORS
#8-32NC-2B Adapters.
Order separately as required.
75-134A
Typical Applications
75-135A
75-136A
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
15,000 VDC; 4,000 VRMS, 60HZ
TYPE DK CAPACITOR
Class III Y5U Temp. Coefficient
Cap Tol. +80% - 20%
DF: 2% Max @ 1 kHz
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
20,000 VDC; 5,000 VRMS, 60HZ
CAP
CATALOG
SIZE
pF
NUMBER D CODE L CODE
500
30DKT50
B
N
1000 30DKD10
C
M
2500 30DKD25
D
M
3300 30DKD33
F
M
4700 30DKD47
G
M
30,000 VDC; 7,000 VRMS, 60HZ
CAP
CATALOG
SIZE
pF
NUMBER D CODE L CODE
300
40DKT30
A
N
500
40DKT50
B
N
780
40DKT78
C
N
1000 40DKD10
D
N
1600 40DKD16
E
N
2500 40DKD25
F
N
3300 40DKD33
G
N
40,000 VDC; 9,000 VRMS, 60HZ
TYPE KT CAPACITOR
Class I N4700 Temp. Coefcient
Cap Tol. ±20%
DF: 0.2% Max @ 1 kHz
CAP
CATALOG
SIZE
PF
NUMBER D CODE L CODE
1000
10KTD10
C
J
2200
10KTD22
D
J
3900
10KTD39
F
J
4700
10KTD47
G
J
10,000 VDC; 4,000 VRMS, 60HZ
CAP
CATALOG
SIZE
pF
NUMBER D CODE L CODE
820
15KTT82
C
K
1900 15KTD19
F
K
3300 15KTD33
G
K
15,000 VDC; 6,000 VRMS, 60HZ
CAP
CATALOG
SIZE
pF
NUMBER D CODE L CODE
560
20KTT56
C
L
1000 20KTD10
D
L
1900 20KTD19
F
L
2700 20KTD27
H
L
20,000 VDC; 8,000 VRMS, 60HZ
CAP
CATALOG
SIZE
pF
NUMBER D CODE L CODE
400
30KTT40
C
M
660
30KTT66
D
M
1200 30KTD12
F
M
1800 30KTD18
H
M
30,000 VDC; 10,000 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
40,000 VDC; 13,000 VRMS, 60HZ
715C Series
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 1000
F
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.
KT Series ceramic material is
specially designed to handle
AC current, due to low
dissipation factor.
-30
30
20
10
0
-10
-20
-30
-40
25
85
Temp. (
°C)
%
Capacitance
Change
KT
Series
DK
Series
Horizontal
Output
Circuit
CRT
H.V.
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.
NOTE: Screw torque limit:
12 inch pounds. Use
#8-32, 3/16" long screw to
prevent bottoming.
L
D
#8-32NC-2B
Tapped
Holes
Fig 17
0.250
DIA
0.437
±0.015
0.187 FLAT
NO. 6-32 NC-2B
THD
0.250
0.437
±0.015
0.187 FLAT
NO. 8-32 NC-2B
THD
0.375
0.250
DIA
NO. 6-32 NC-2B
INT THD
0.312
0.437
±0.015
0.250
DIA
0.187 FLAT
All tolerances ±0.010 unless specied.