220 EDLC ENYCAP™

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Vishay BCcomponents

Revision: 18-Jan-16

4

Document Number: 28421

THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT

MEASURING OF CHARACTERISTICS

CAPACITANCE (C)

Capacitance shall be measured by constant current

discharge method.

- Constant current discharge with 10 mA/F to 0.1 V

Fig. 2 - Voltage Diagram for Capacitance Measurement

- Constant current discharge to 0.1 V





Rated capacitance, in F

Rated voltage, in V

U

3

Voltage drop at internal resistance, in V

reached, in s

reached, in s

Absolute value of discharge current, in A

U

R

U

1

U

2

t

1

t

2

ΔU

3

(s)

30 min

C

R

F



I

D

A

 x t

2

s

 - t

1

s





U

1

V

 - U

2

V



---------------------------------------------------------------

=

Equivalent series resistance, in



U

R

Voltage drop at internal resistance, in V

Absolute value of discharge current, in A

ESR

DC





U

3

V



I

D

A



---------------------

=