K78-2
___________________________________
HIGN-FREQUENCY POLYPROPYLENE METALLIZED FILM AND FOILED CAPACITORS
:
0. 461.112
,
.
:
.
Specification:
0. 461.112
Designed to operate in DC, and ripple
current circuits and in pulse mode.
Design: dipped
.
20
+5
L max
H max
3 max
A
d
B max
0,001 .... 2,2
Rated capacitance
0,001 .... 2,2 F
250, 315, 1000,
1600, 2000
Rated voltage
250, 315, 1000,
1600, 2000 V
5, 10; 20 %
Capacitance tolerance
5, 10; 20 %
f = 1
0,001
Dissipation factor at f = 1 kHz
0,001
C
0,33
U
= 315
U
= 250, 1000, 1600, 2000
100 000 Mo
50 000 Mo
Insulation
resistance
at Cr 0,33 F
Ur = 315 V
Ur = 250, 1000, 1600, 2000 V
100 000 MOhm
50 000 MOhm
C
> 0,33
U
= 250
15 000
Time constant
at Cr > 0,33 F
Ur = 250 V
15 000 MOhmF
-60...+85
o
C
Operating
temperature
range
-60...+85
o
C
(-500...0)10
-6
-1
TC
(-500 ... 0) ppm/
o
C
15 000
Operating time
15 000 hours
12
Shelf
life
12
years
, B (933%
.
402
o
C, 21
)
Climatic
categories
RH
933%,
402
o
C, 21 days
:
78-2 - 1000 - 0,1
- 10%
Ordering example:
Capacitor K78-2 - 1000 V - 0,1 F - 10%
U
f
f.
Permissible amplitude of AC sinusoidal voltage or amplitude of AC sinusoidal component of ripple voltage
U
f
as a function of frequency f.
-3
10
1,5 2,2 3,3 4,7 6,8
10
-1
10
0
10
10
2
2
4
6
8
16
00
4
2
6
8
4
2
6
8
U
Uf
%
2,2
1,5
3,3 4,7 6,8
-2
10
2,2
1,5
3,3 4,7 6,8
-1
10
2,2
1,5
0
10
10
3
10
4
10
5
10
6
f
2
5
2
5
2
5
20
00
10
00
63
0
31
5
25
0
U
,
:
U
f
U
;
U
f
750
U
=1000 ; 1600 B
U
f
1100
U
=2000
U
f
:
:
f=10
5
, U
=2000 , C
=0,015
:
U
f
=18%
U
= 360
:
f=5 10
5
, U
=315
, C
=0,33
:
U
f
=5,7%
U
= 18
Limits:
U
f
U
r
;
U
f
750 V
Ur=1000 V; 1600 V
U
f
1100 V for U
r
=2000 V
Example of calculation of U
f
:
Given:
f=10
5
Hz, U
r
=2000 V, C
r
=0,015 F
Finding:
U
f
=18% of U
r
= 360 V
Given:
f=5 10
5
Hz, U
r
=315 V, C
r
=0,33 F
Finding:
U
f
=5,7% of U
r
= 18 V
U
F ,
,
,
.
Permissible peak-to-peak pulse voltage U as a function of pulse repetition frequency F , minimal
temporal sector , corresponding pulse leading edge slope or pulse trailing edge slope and rated
capacitance C
r
.
C
F
U
,
6
8
10
2
10
8
6
2
4
0
10
8
6
2
4
-1
10
2
4
10
1,5 2,2
3,3 4,7
6,8
-3
-2
10
3,3
1,5 2,2
4,7
6,8
-1
10
3,3
1,5 2,2
4,7
6,8
0
10
1,5 2,2
10
2
5
5
3
10
2
4
10
5
5
10
2
6
%
31
5
25
0
63
0
1
600
U
t
U
t
t
U
U
t =10
t =5 10
t =10
t =5 10
t =10
-5
-6
-6
-7
-7
2
000
1
000
:
U U
;
U 1500
U
=1600
U :
:
F =10
4
,
=10
-7
,
U
=2000 , C
=0,015
:
U =28%
U
= 560
:
F =10
5
,
=10
-7
,U
=315
,C
=0,33
:
U =13,5%
U
= 42,5
Limits:
U U
;
U 1500 for U
=1600
Example of calculation of U :
Given:
F =10
4
Hz,
=10
-7
,
U
r
=2000 V,C
r
=0,0015 F
Finding:
U =28% of U
r
=560 V
Given:
F =10
5
Hz,
=10
-7
,U
r
=315 V,C
r
=0,33 F
Finding:
U =13,5% of U
r
=42,5 V
I
m
dU/dt.
Maximum permissible amplitude of pulse current I
m
and rate of the voltage change dU/dt.
U
,
U
r
, V
C
,
C
r
, F
I
m
, max, A
dU/dt, max, V/s
0,068...0,15 6,8...15
100
0,22...0,47 15,4...32,9
70
0,68...1,0 34...50
50
250
1,5...2,2 45...66
30
0,001...0,0039 15,5...60,45
15500
0,0047...0,012 51,7...132
11000
0,015...0,039 75...192
5000
1000
0,047...0,15 155,1...495
3300
0,001...0,0018 18,5...33,3
18500
0,0022...0,01 22...100
10000
0,012...0,022 72...132
6000
1600
0,027...0,15 108...600
4000
0,001...0,0015 25...37,5
25000
0,0022...0,0033 66...99
30000
2000
0,0047...0,015 75,2...240
16000