Datasheet
5© KEMET Electronics Corporation • KEMET Tower • One East Broward Boulevard F3116_C4AF • 7/29/2020
Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.com
Power and AC Film Capacitors – Printed Circuit Board Mount Power Film Capacitors
C4AF, Radial, 2 or 4 Leads, 250 - 500 VAC, for Harsh Environment AC Filtering (Automotive Grade)
Operative Voltage Derating
Voltage (VAC)
Operating Voltage 250 310 350 400 500
Rated Voltage at 85°C (T
HS
) 250 310 350 400 500
Operating Voltage at 105°C (T
HS
) 175 217 245 280 350
KEMET denes maximum ripple current, based on hot spot/ambient self-heating temperature. For C4AF, maximum allowed
self-heating is 30°C, with ambient temperature up to 70°C. DT is reduced linearly with increasing ambient temperature, down
to 3°C (caused by the fundamental frequency current, no ripple current) at 105°C:
Maximum Overtemperature ∆T
lim
vs T
h
Temperature T
h
(°C)
∆T
lim
(°C)
0
5
10
15
20
25
30
35
0
5
10
15
20
25
30
35
40
45
50
55
60
65
70
75
80
85
90
95
100
105
110
115
Maximum I
rms
Temperature T
AMB
(°C)
Maximum I
rms
vs. T
AMB
0%
20%
40%
60%
80%
100%
120%
25
30
35
40
45
50
55
60
65
70
75
80
85
90
95
100
110
115
105