Samsung SCLSeries - Manual (Page 17)

SCL
Series
Frequency K
120 1.0
400 0.8
1k 0.65
10k 0.50
20k 0.45
40k 0.43
100k 0.40
1M 0.35
10
0.01
0.1
1.0
100 1K 10K 100K 1M
FREQUENCY(Hz)
Fig.4 Correction Coefficient(K)
Table.2 Hz VS K
▶ Ripple Voltage
If an excessive ripple voltage is applied to the tantalum capacitors, their internal temperature
rises due to Joule heat, resulting in the detriment of their reliability.
▷ The tantalum capacitors must be used in such a conditions that the sum of the Working Voltage
and ripple voltage peak values does not exceed the rated voltage (Fig. 5)
▷ Ensure that an reverse voltage due to superimposed voltages is not applied to the capacitors.
▷ The maximum permissible ripple voltage varies with the rated voltage. Ensure that ripple voltage does
not exceed the values shown in Figs 6 and 7. If, however, the capacitors are used at a high
temperature, the maximum permissible ripple voltage must be calculated as follows:
Vrms(at 55℃) = 0.7 x Vrms(at 25℃)
Vrms(at 85℃) = 0.5 x Vrms(at 25℃)
Vrms(at 125℃) = 0.3 x Vrms(at 25℃)