MAL219632334E3 Ver la hoja de datos (PDF) - Vishay Semiconductors
Número de pieza
componentes Descripción
Fabricante
MAL219632334E3 Datasheet PDF : 7 Pages
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MEASURING OF CHARACTERISTICS
CAPACITANCE (C)
Capacitance shall be measured by constant current
discharge method.
DISCHARGE CURRENT AS A FUNCTION OF
RATED CAPACITANCE
PARAMETER
VALUE
UNIT
Rated
capacitance, CR
0.047 0.1 0.22 0.33 0.47 0.68 1.0
F
Discharge
current, ID
0.1
1.0
mA
U
(V)
UR
2.0
0
30 min
Time
T (s)
Fig. 3 - Voltage diagram for capacitance measurement
Capacitance value CR is given by discharge current ID, time
T and rated voltage UR, according to the following equation:
CF = -I-D------m------A--U-----R-x-----V1----0-------3---2--x-----T------s----
A
+
V
C
Constant
current
discharger
Fig. 4 - Test circuit for capacitance measurement
196 DLC
Vishay BCcomponents
INTERNAL RESISTANCE (RI) AT 1 kHz
RI = V---1-C--0------V-3---
1 mA
A
1 kHz
+
C
V
Fig. 5 - Test circuit for RI measurement
LEAKAGE CURRENT (IL)
Leakage current shall be measured after 30 min application
of rated voltage UR:
ILA = V-1---0---V----4-
V
RS 100 Ω
+
+
C
Fig. 6 - Test circuit for leakage current
102
IL
(µA)
Curve 1: 1.0 F, 5.5 V
Curve 2: 0.47 F, 5.5 V
Curve 3: 0.22 F, 5.5 V
Curve 4: 0.1 F, 5.5 V
Curve 5: 0.047 F, 5.5 V
RS = 100 Ω
10
1
2
3
4
1
5
1
10
20
30
40
50
Time (h)
Fig. 7 - Typical leakage current as a function of time
Revision: 13-Mar-18
4
Document Number: 28362
For technical questions, contact: energystorage@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
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