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CD138SWP Datasheet(Fiches technique) 6 Page - Jianghai Europe GmbH

Numéro de pièce CD138SWP
Description  15000h at 85C
Télécharger  7 Pages
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Fabricant  JIANGHAI [Jianghai Europe GmbH]
Site Internet  http://www.jianghai-europe.com
Logo JIANGHAI - Jianghai Europe GmbH

CD138SWP Datasheet(HTML) 6 Page - Jianghai Europe GmbH

  CD138SWP Datenblatt HTML 1Page - Jianghai Europe GmbH CD138SWP Datenblatt HTML 2Page - Jianghai Europe GmbH CD138SWP Datenblatt HTML 3Page - Jianghai Europe GmbH CD138SWP Datenblatt HTML 4Page - Jianghai Europe GmbH CD138SWP Datenblatt HTML 5Page - Jianghai Europe GmbH CD138SWP Datasheet HTML 6Page - Jianghai Europe GmbH CD138SWP Datenblatt HTML 7Page - Jianghai Europe GmbH  
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Assistance needed? Please contact JiAnGHAi EuroPE GmbH +49 (0)2151 652088-72 or info@jianghai-europe.com
Life Time Estimation
3. K
V Voltage Factor: For Radial Electrolytic Capacitors, this part of the formula has no impact (KV = 1). But for
some bigger capacitors like Snap-In and Screw-Terminal types with rated voltages above 350V, the operating
voltage will affect their Lifetime. It is expressed as follows:
( )
K
V =
U
A
U
R
-n
Where:
U
R
Rated Voltage
U
A
Actual Operating Voltage
n
Exponent, defined as:
0,5 ≤
U
A
≤ 1
n = 2,5
U
R
0 <
U
A
< 0,5 → n = 0
U
R
4.
Frequency Correction Factors: If the actual Ripple Currents are not given at the same frequency like I
0,
weighing factors need to be applied.
I
A
Actual Rated Ripple Current (normalized)
I
f1 ... Ifn
Ripple Currents at different frequencies
F
f1 ... Ffn
Frequency Correction Factors for different frequencies
I
A =
(
I
f 1
)
2
+
F
f 1
(
I
f 2
)
2
+
F
f 2
...
(
I
f n
)
2
F
f n
L = L
0 · KT · KR · KV
5.
JiAnGHAi Electrolytic Capacitor Lifetime Estimation Formula
T
0-TA
[1- (
I
A
) 2]·
∆ T
0
U
A
=
L
0· 2
10K · K
i
I
R
10K · ( )
-n
U
R
T
0 = 105°C
I
A > IR → Ki =
4
I
A ≤ IR → Ki =
2
T
0 =
85°C
K
i =
2
0,5 ≤
U
A
≤ 1
n = 2,5
U
R
0 <
U
A
< 0,5 → n = 0
U
R


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