40
Capacitors:
Type
KNU
1910
radial leads, pitch 10mm to 27.5mm
Technical data
Dimensions in mm
Insulation resistance (R
i
):
100 000 M
at 20
0
C for C
R
0.33
F
R
i
x C
R
30 000 s at 20
0
C for C
R
>
0.33
F
Self inductance:
appr. 10 nH/cm length of capacitor and leads
Soldering on printed circuit boards: temperature of soldering bath 270
0
C max., soldering time 5 s max.
Pulse loading (du/dt):
Pitch r (mm)
10
15
22.5
27.5
U
R
Allowed pulse loading
(V/
s)
250 V DC
180
120
60
45
400 V DC
200
150
90
65
630 V DC
230
180
120
90
1000 V DC
-
210
130
100
1600 V DC
-
450
190
140
General technical data
Dielectric:
polypropylene film
Electrodes:
vacuum metallized on dielectric
Winding:
non-inductive construction, flat shape
Leads:
tinned copper wire, standard lengths
l
1
: 4
0.5
; 6
-1
; 25
5
. Other lead lengths on
request.
Encapsulation:
flame-retardant plastic case with flame-
retardant epoxy resin seal, UL94 V-0,
resistant to wash in hallogenated solvents
Marking:
Iskra symbol, capacitance, tolerance,
rated voltage, type designation
Climatic category: 55/100/56, IEC 60068-1
Temperature
range:
-55
0
C to + 100
0
C
Complies with
standard:
IEC 60384-16
Diameter of leads
r (mm)
(mm)
10
0.6
15; 22.5; 27.5
0.8
Electrical data
Capacitance range:
1000 pF to 6.8
F
Standard values of capacitance (C
R
):
range E6
Capacitance tolerance:
20% (M); 10% (K) and 5% (J) on special request
Temperature coefficient of capacitance (TC): appr. 200x10
-6
/
0
C
Rated voltage (U
R
):
250 V DC, 400 V DC, 630 V DC, 1000 V DC, 1600 V DC
Allowed alternative voltage up to 60 Hz:
160 V AC, 220 V AC, 250 V AC, 300 V AC, 500 V AC
Category voltage (U
C
):
up to +85
0
C U
C
=U
R
; from +85
0
C to +100
0
C voltage
U
R
is lowered for 1.35% per 1
0
C.
Test vollage:
1.6 x U
R
, 2 s
Dissipation factor (tan
):
C
R
0.1
F
0.1
F
<
C
R
1
F
C
R
>
1
F
f = 1 kHz
5 x 10
-4
5 x 10
-4
5 x 10
-4
f = 10 kHz
10 x 10
-4
20 x 10
-4
-
f =100 kHz
30 x 10
-4
-
-
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