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