225 EDLC-R ENYCAP™

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Vishay BCcomponents

Revision: 02-Jul-2021

5

Document Number: 28449

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. 3 - Voltage Diagram for Capacitance Measurement

- Constant current discharge to 0.1 V

Statements about product lifetime are based on calculations and internal testing. They should only be interpreted as estimations. Also due to external factors, the

lifetime in the field application may deviate from the calculated lifetime. In general, nothing stated herein shall be construed as a guarantee of durability.

Rated capacitance, in F

Rated voltage, in V

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

Ω

Voltage drop at internal resistance, in V

Absolute value of discharge current, in A

ESR

DC

Ω

[]

ΔU

3

V

[]

I

D

A

[]

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

=