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 - 3 2 N C - 2 B 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. Coeffi cient
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: -30C to +85C
Storage Temperature Range: -40C to +100C
Dielectric Strength: 150% of rated voltage, charging
current limited to 50mA.
Insulation Resistance: 200,000 megohms or 1000
F
minimum at 25C.
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 25C 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 (I
p
= 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 specifi ed.
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