135D データシートの表示（PDF） - Vishay Semiconductors
部品番号
コンポーネント説明
メーカー
135D Datasheet PDF : 14 Pages
| |||
www.vishay.com
Verifying that the 40 kHz rating does not exceed the peak
voltage limitations:
Irated = 0.820 ARMS
Ipprated = 0.820 x 2 2 = 2.32 App
2
ZC (40 kHz)
=
E S R 40
kHz 2
+
(XC(40
Hz)
where:
ESR40 kHz = 4 120 Hz x 0.34
from Extended Ratings table) = 1.36
and:
XC (40 kHz) = 2------1--f--C---
=
---------------------------------------1---------------------------------------
2 x 40 x 103 x 25 x 10-6
=
0.159
thus:
ZC 40kHz = 1.362 + 0.1592 = 1.37
Therefore the impressed voltage is:
VCpp = ZCpp Ipp= 1.37 x 2.32 App = 3.18 Vpp
and:
3.18 V 11 V
Therefore, if the capacitor is biased between - 1.41 VDC
and + 6.41 VDC , it can withstand the rated ripple current,
which is based only on the maximum allowable power
dissipation.
135D
Vishay
3. Ripple Current Multipliers: The “Standard and
Extended Ratings” tables list the maximum permissible
RMS ripple current at 40 kHz for each rating. These
values arebased on the maximum power dissipation
allowed at that frequency.
This ripple current, will cause heating, which adds to the
ambient temperature. The higher ambient temperatures,
voltage derating or current derating is required (see
“Ripple Current Multipliers” tables). Also shown are the
multipliers for ripple currents at various requencies,
caused by the frequency dependence of the (ESR)
equivalent series resistance. (see “Typical ESR as a
Function of Frequency” chart)
TYP. ESR AS A FUNCTION OF FREQUENCY
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0
10
100
1K
10K 40K 100K
1M
FREQUENCY (Hz)
RIPPLE CURRENT MULTIPLIERS (120 Hz to 1 kHz)
% OF + 85 °C
RATED PEAK
VOLTAGE
- 55 °C
120 Hz
+ 85 °C
+ 125 °C
RIPPLE CURRENT MULTIPLIERS
800 Hz
- 55 °C + 85 °C + 125 °C
100
0.60
0.39
-
0.71
0.43
-
90
0.60
0.46
-
0.71
0.55
-
80
0.60
0.52
-
0.71
0.62
-
70
0.60
0.58
-
0.71
0.69
-
67
0.60
0.60
0.27
0.71
0.71
0.32
- 55 °C
0.72
0.72
0.72
0.72
0.72
1 kHz
+ 85 °C
0.45
0.55
0.62
0.70
0.72
+ 125 °C
-
-
-
-
0.32
RIPPLE CURRENT MULTIPLIERS (10 kHz to 100 kHz)
% OF + 85 °C
RATED PEAK
VOLTAGE
- 55 °C
10 kHz
+ 85 °C
+ 125 °C
RIPPLE CURRENT MULTIPLIERS
40 kHz
- 55 °C + 85 °C + 125 °C
100
0.88
0.55
-
1.0
0.63
-
90
0.88
0.67
-
1.0
0.77
-
80
0.88
0.76
-
1.0
0.87
-
70
0.88
0.85
-
1.0
0.97
-
67
0.88
0.88
0.40
1.0
1.0
0.45
- 55 °C
1.1
1.1
1.1
1.1
1.1
100 kHz
+ 85 °C
0.69
0.85
0.96
1.07
1.1
+ 125 °C
-
-
-
-
0.50
Revision: 09-Apr-13
11
Document Number: 40024
For technical questions, contact: tantalum@vishay.com
THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT
ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000
Share Link: 